1)删除悬浮按钮工程;2)删除判断悬浮按钮类应用的代码

This commit is contained in:
杜长峰 2023-05-04 17:33:35 +08:00
parent 5eb371ec28
commit a61a6a2d7d
132 changed files with 84 additions and 5337 deletions

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@ -1,3 +1,84 @@
TEMPLATE = subdirs
SUBDIRS += kylin-app-manager/kylin-app-manager.pro
SUBDIRS += ukui-vkeyboard-hoverbutton/ukui-vkeyboard-hoverbutton.pro
QT += widgets dbus KConfigCore KConfigGui KWindowSystem concurrent KWaylandClient
CONFIG += c++11 console link_pkgconfig no_keywords
CONFIG -= app_bundle
CONFIG += c++11 link_pkgconfig
PKGCONFIG += kysdk-waylandhelper
DBUS_INTERFACES += conf/com.kylin.ProcessManager.xml
PKGCONFIG += glib-2.0 gio-2.0 gio-unix-2.0
include(QtSingleApplication/qtsingleapplication.pri)
# The following define makes your compiler emit warnings if you use
# any Qt feature that has been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS #INVISIBLE_ENABLE
INCLUDEPATH += \
src
# You can also make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
SOURCES += \
src/core/appcgroup.cpp \
src/core/appinfo.cpp \
src/core/appinfomanager.cpp \
src/core/appstatusmanager.cpp \
src/core/basecontroller.cpp \
src/core/eventwatcher.cpp \
src/core/policy.cpp \
src/core/timerwheel.cpp \
src/dbusinterfaces/statusmanagerinterface.cpp \
src/main.cpp \
src/appmanager.cpp \
src/dbusinterfaces/cgroupinterface.cpp \
src/dbusinterfaces/kwininterface.cpp \
src/dbusservices/applauncher.cpp \
src/dbusservices/applauncherdaemon.cpp \
src/dbusservices/appmanagerservice.cpp \
src/dbusservices/whitelistmanager.cpp \
src/memorymonitor.cpp \
src/utils/misc.cpp \
src/utils/processinfo.cpp
# Default rules for deployment.
CONFIG(debug, debug|release) {
target.path = /home/kylin
} else {
target.path = /usr/bin
}
#unit.files = $$PWD/debian/lib/systemd/user/kylin-app-manager.service
#unit.path = /lib/systemd/user
#service.files = $$PWD/debian/usr/share/dbus-1/services/com.kylin.AppManager.service
#service.path = /usr/share/dbus-1/services/
!isEmpty(target.path): INSTALLS += target
HEADERS += \
src/appmanager.h \
src/core/appcgroup.h \
src/core/appinfo.h \
src/core/appinfomanager.h \
src/core/appstatusmanager.h \
src/core/basecontroller.h \
src/core/eventwatcher.h \
src/core/policy.h \
src/core/timerwheel.h \
src/dbusinterfaces/cgroupinterface.h \
src/dbusinterfaces/kwininterface.h \
src/dbusinterfaces/statusmanagerinterface.h \
src/dbusservices/applauncher.h \
src/dbusservices/applauncherdaemon.h \
src/dbusservices/appmanagerservice.h \
src/dbusservices/whitelistmanager.h \
src/memorymonitor.h \
src/utils/misc.h \
src/utils/processinfo.h \
src/common.h
LIBS += -lukui-log4qt

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@ -1,2 +0,0 @@
# kylin-app-manager

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@ -1,84 +0,0 @@
QT += widgets dbus KConfigCore KConfigGui KWindowSystem concurrent KWaylandClient
CONFIG += c++11 console link_pkgconfig no_keywords
CONFIG -= app_bundle
CONFIG += c++11 link_pkgconfig
PKGCONFIG += kysdk-waylandhelper
DBUS_INTERFACES += ../conf/com.kylin.ProcessManager.xml
PKGCONFIG += glib-2.0 gio-2.0 gio-unix-2.0
include(QtSingleApplication/qtsingleapplication.pri)
# The following define makes your compiler emit warnings if you use
# any Qt feature that has been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS #INVISIBLE_ENABLE
INCLUDEPATH += \
src
# You can also make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
SOURCES += \
src/core/appcgroup.cpp \
src/core/appinfo.cpp \
src/core/appinfomanager.cpp \
src/core/appstatusmanager.cpp \
src/core/basecontroller.cpp \
src/core/eventwatcher.cpp \
src/core/policy.cpp \
src/core/timerwheel.cpp \
src/dbusinterfaces/statusmanagerinterface.cpp \
src/main.cpp \
src/appmanager.cpp \
src/dbusinterfaces/cgroupinterface.cpp \
src/dbusinterfaces/kwininterface.cpp \
src/dbusservices/applauncher.cpp \
src/dbusservices/applauncherdaemon.cpp \
src/dbusservices/appmanagerservice.cpp \
src/dbusservices/whitelistmanager.cpp \
src/memorymonitor.cpp \
src/utils/misc.cpp \
src/utils/processinfo.cpp
# Default rules for deployment.
CONFIG(debug, debug|release) {
target.path = /home/kylin
} else {
target.path = /usr/bin
}
#unit.files = $$PWD/debian/lib/systemd/user/kylin-app-manager.service
#unit.path = /lib/systemd/user
#service.files = $$PWD/debian/usr/share/dbus-1/services/com.kylin.AppManager.service
#service.path = /usr/share/dbus-1/services/
!isEmpty(target.path): INSTALLS += target
HEADERS += \
src/appmanager.h \
src/core/appcgroup.h \
src/core/appinfo.h \
src/core/appinfomanager.h \
src/core/appstatusmanager.h \
src/core/basecontroller.h \
src/core/eventwatcher.h \
src/core/policy.h \
src/core/timerwheel.h \
src/dbusinterfaces/cgroupinterface.h \
src/dbusinterfaces/kwininterface.h \
src/dbusinterfaces/statusmanagerinterface.h \
src/dbusservices/applauncher.h \
src/dbusservices/applauncherdaemon.h \
src/dbusservices/appmanagerservice.h \
src/dbusservices/whitelistmanager.h \
src/memorymonitor.h \
src/utils/misc.h \
src/utils/processinfo.h \
src/common.h
LIBS += -lukui-log4qt

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@ -161,7 +161,4 @@ void AppManager::initConnections()
connect(m_eventWatcher, &EventWatcher::ChildPidFinished,
&m_appInfoManager, &AppInfoManager::onChildPidFinished);
connect(&m_appInfoManager, &AppInfoManager::launchHoverButton,
m_appLauncher, &AppLauncher::wakeupHoverButton);
}

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@ -27,12 +27,8 @@ AppInfoManager::AppInfoManager(QObject *parent)
: QObject(parent)
, m_appStatusManager(new AppStatusManager(this))
, m_desktopFileWatcher(new QFileSystemWatcher(this))
, m_hoverAppListsFileWatcher(new QFileSystemWatcher(this))
, m_hoverAppJsonFile(QStandardPaths::writableLocation(QStandardPaths::HomeLocation) + "/.config/kylin-app-manager/hoverAppLists")
, m_isWakeupHoverButton(false)
{
initDesktopExecsInfoWatcher();
initHoverAppsJsonFile();
initConnections();
}
@ -245,48 +241,6 @@ std::tuple<appinfo::RunningStatus, QString, bool> AppInfoManager::runningStatus(
return std::make_tuple(appinfo::RunningStatus::None, "", false);
}
bool AppInfoManager::isExistsOfHoverApps(const QString &desktopFileName, const QString &option)
{
if (desktopFileName.isEmpty() || option.isEmpty()) {
qWarning() << current_func << "desktopFile or option is empty!" << desktopFileName << option;
}
if (m_hoverAppsJsonObj[option].toArray().contains(desktopFileName)) {
return true;
}
return false;
}
bool AppInfoManager::isExistsOfHoverApps(const int &pid, const QString &option)
{
if (pid <= 0 || option.isEmpty()) {
qWarning() << current_func << "pid is not valid or option is empty!" << pid << option;
return false;
}
auto appIdInstance = appInstanceInfoWithPid(pid);
QString appId = appIdInstance.first;
QString desktopName = appInfos.value(appId).desktopFile().trimmed().split("/").last();
if (desktopName.isEmpty()) {
return false;
}
if (!m_hoverAppsJsonObj[option].toArray().contains(desktopName)) {
return false;
}
return true;
}
bool AppInfoManager::isWakeupHoverButton()
{
return m_isWakeupHoverButton;
}
void AppInfoManager::updateWakeupHoverButtonStatus(const bool &isWakeupBtn)
{
if (m_isWakeupHoverButton == isWakeupBtn) {
return;
}
m_isWakeupHoverButton = isWakeupBtn;
}
QString AppInfoManager::inhibit(const QString &desktopFile,
uint pid,
const QString &reason,
@ -359,15 +313,6 @@ void AppInfoManager::onActiveWindowChanged(quint32 currentWid,
quint32 preWid,
int prePid)
{
// 活动窗口为Wps等类应用时唤醒悬浮按钮
if (!isExistsOfHoverApps(currentPid, "HoverAppLists") && m_isWakeupHoverButton) {
m_isWakeupHoverButton = false;
Q_EMIT launchHoverButton(QString(), "ukui-vkeyboard-hoverbutton", QStringList() << " -q");
}
if (isExistsOfHoverApps(currentPid, "HoverAppLists") && !m_isWakeupHoverButton) {
m_isWakeupHoverButton = true;
Q_EMIT launchHoverButton(QString(), "ukui-vkeyboard-hoverbutton", QStringList());
}
Q_UNUSED(prePid)
auto currentApp = appInstanceInfoWithWindowId(currentWid);
auto preApp = appInstanceInfoWithWindowId(preWid);
@ -520,16 +465,6 @@ void AppInfoManager::updateDesktopExecsInfo(const QString &path)
}
}
void AppInfoManager::updateHoverAppListsJsonInfo(const QString &path)
{
QFile dir(path);
if (!dir.exists()) {
qWarning() << current_func << path << " is not exists";
return;
}
m_hoverAppsJsonObj = utils::Misc::readJsonFromFile(m_hoverAppJsonFile);
}
void AppInfoManager::onResourceThresholdWarning(Policy::Feature resource, Policy::ResourceUrgency level)
{
m_appStatusManager->resourceThresholdWarning(resource, level);
@ -1104,36 +1039,8 @@ void AppInfoManager::initDesktopExecsInfoWatcher()
m_desktopFileWatcher->addPaths(desktopDirs);
}
void AppInfoManager::initHoverAppsJsonFile()
{
QString filePath = QStandardPaths::writableLocation(QStandardPaths::HomeLocation) + "/.config/kylin-app-manager/";
QString jsonFileName = filePath + "/hoverAppLists";
if (QFile::exists(jsonFileName)) {
m_hoverAppsJsonObj = utils::Misc::readJsonFromFile(jsonFileName);
return;
}
if (!utils::Misc::ensurePathExists(filePath) ||
!utils::Misc::ensureFileExists(jsonFileName)) {
return;
}
// 初始化HoverAppLists列表添加默认悬浮应用维护HoverAppLists列表
m_hoverAppsJsonObj["HoverAppLists"] = QJsonArray();
QJsonArray hoverAppArray;
for (int i=0; i < hoverAppLists.size(); ++i) {
hoverAppArray.append(hoverAppLists[i]);
}
m_hoverAppsJsonObj["HoverAppLists"] = hoverAppArray;
if (!utils::Misc::writeJsonToFile(m_hoverAppsJsonObj, m_hoverAppJsonFile)) {
qWarning() << current_func << "writeJsonToFile is failed!";
}
m_hoverAppListsFileWatcher->addPath(m_hoverAppJsonFile);
}
void AppInfoManager::initConnections()
{
connect(m_desktopFileWatcher, &QFileSystemWatcher::directoryChanged,
this, &AppInfoManager::updateDesktopExecsInfo);
connect(m_hoverAppListsFileWatcher, &QFileSystemWatcher::fileChanged,
this, &AppInfoManager::updateHoverAppListsJsonInfo);
}

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@ -77,30 +77,6 @@ public:
*/
std::tuple<appinfo::RunningStatus, QString, bool> runningStatus(const QString &desktopFile, const QStringList &args) const;
/**
* @brief isExistsOfHoverApps
* @param desktopFile desktop文件
* @param option
* @return option类应用返回true
*/
bool isExistsOfHoverApps(const QString &desktopFileName, const QString &option);
/**
* @brief isExistsOfHoverApps
* @param pid pid
* @param option
* @return option类返回true
*/
bool isExistsOfHoverApps(const int &pid, const QString &option);
/**
* @brief isWakeupHoverButton
* @return
*/
bool isWakeupHoverButton();
void updateWakeupHoverButtonStatus(const bool &isWakeupBtn);
QString inhibit(const QString &desktopFile,
uint pid,
const QString &reason,
@ -120,7 +96,6 @@ public Q_SLOTS:
void onWindowRemoved(quint32 wid);
void onMprisDbusAdded(int pid, const QString &dbusService);
void updateDesktopExecsInfo(const QString &path);
void updateHoverAppListsJsonInfo(const QString &path);
void onResourceThresholdWarning(Policy::Feature resource, Policy::ResourceUrgency level);
void onTabletModeChanged(bool tabletMode);
void onChildPidFinished(const int &pid);
@ -129,18 +104,12 @@ public Q_SLOTS:
Q_SIGNALS:
void appFinished(const QString &desktopNmae, qlonglong pid, uint wid);
void appLaunched(const QString &desktopNmae, qlonglong pid, uint wid);
void launchHoverButton(const QString &name, const QString &binary, const QStringList &args);
private:
/**
* @brief initDesktopExecsInfoWatcher desktopFileExec字段信息
*/
void initDesktopExecsInfoWatcher();
/**
* @brief initHoverAppsJsonFile
*/
void initHoverAppsJsonFile();
/**
* @brief initConnections
*/
@ -272,21 +241,8 @@ private:
QMap<QString, QPair<QString, QStringList>> m_desktopsExec;
QMutex m_mutex;
QFileSystemWatcher *m_desktopFileWatcher;
QFileSystemWatcher *m_hoverAppListsFileWatcher;
const QString m_hoverAppJsonFile;
QJsonObject m_hoverAppsJsonObj;
bool m_isWakeupHoverButton;
QList<Inhibitor> m_inhibitors;
const QString kKmreAppMainWindow = "/usr/bin/kylin-kmre-window";
const QStringList hoverAppLists = {
"wps-office-prometheus.desktop",
"wps-office-pdf.desktop",
"wps-office-wps.desktop",
"wps-office-officeassistant.desktop",
"wps-office-et.desktop",
"wps-office-wpp.desktop",
"qaxbrowser-safe.desktop"
};
const QStringList kNoCgroupApps = {
};
};

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@ -264,11 +264,6 @@ void AppLauncher::setEnvValue(const QByteArray &envValue)
m_envValue = envValue;
}
void AppLauncher::wakeupHoverButton(const QString &name, const QString &binary, const QStringList &args)
{
launch(name, binary, args);
}
QPair<QString, QStringList> AppLauncher::desktopFileExec(const QString &desktopFileName)
{
if (desktopFileName.isEmpty()) {
@ -454,11 +449,6 @@ bool AppLauncher::doLaunchApp(const QString &desktopFile, const QStringList &arg
default: break;
}
}
// Wps等类应用需要唤醒悬浮按钮
if (m_appInfoManager.isExistsOfHoverApps(desktopFilename, "HoverAppLists") && !m_appInfoManager.isWakeupHoverButton()) {
m_appInfoManager.updateWakeupHoverButtonStatus(true);
launch("", "ukui-vkeyboard-hoverbutton", QStringList());
}
return launchResult;
}

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@ -83,9 +83,6 @@ public:
*/
void setEnvValue(const QByteArray &envValue);
public Q_SLOTS:
void wakeupHoverButton(const QString &name, const QString &binary, const QStringList &args);
Q_SIGNALS:
void aboutToQuitMainApp();

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@ -1,3 +0,0 @@
****虚拟键盘悬浮按钮****
- 1.0.0版本按下悬浮按钮可以弹出虚拟键盘在wps等无法使用虚拟键盘的场景下使用

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@ -1,6 +0,0 @@
<RCC>
<qresource prefix="/">
<file>keyboard_light.svg</file>
<file>keyboard_dark.svg</file>
</qresource>
</RCC>

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@ -1,36 +0,0 @@
/*
* Copyright 2023 KylinSoft Co., Ltd.
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "src/mainwindow.h"
#include "src/search_application.h"
#include <qtsingleapplication.h>
#include <QCommandLineParser>
#include <QApplication>
#include <QDebug>
int main(int argc, char *argv[])
{
SearchApplication app("ukui-vkeyboard-hoverbutton",argc,argv);
if (app.getFlag()==1) {
return 0;
}
if (app.isRunning()) {
app.activateWindow();
return 0;
}
return app.exec();
}

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@ -1,102 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="enabled">
<bool>true</bool>
</property>
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>56</width>
<height>56</height>
</rect>
</property>
<property name="minimumSize">
<size>
<width>56</width>
<height>56</height>
</size>
</property>
<property name="maximumSize">
<size>
<width>56</width>
<height>56</height>
</size>
</property>
<property name="focusPolicy">
<enum>Qt::NoFocus</enum>
</property>
<property name="acceptDrops">
<bool>false</bool>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<property name="windowOpacity">
<double>0.950000000000000</double>
</property>
<property name="styleSheet">
<string notr="true">border-radius:15px</string>
</property>
<widget class="QWidget" name="centralwidget">
<property name="maximumSize">
<size>
<width>56</width>
<height>56</height>
</size>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<property name="spacing">
<number>0</number>
</property>
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<widget class="QPushButton" name="pushButton">
<property name="minimumSize">
<size>
<width>56</width>
<height>56</height>
</size>
</property>
<property name="maximumSize">
<size>
<width>56</width>
<height>56</height>
</size>
</property>
<property name="focusPolicy">
<enum>Qt::ClickFocus</enum>
</property>
<property name="acceptDrops">
<bool>false</bool>
</property>
<property name="text">
<string/>
</property>
<property name="iconSize">
<size>
<width>56</width>
<height>56</height>
</size>
</property>
</widget>
</item>
</layout>
</widget>
</widget>
<resources/>
<connections/>
</ui>

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@ -1,254 +0,0 @@
INSTALLATION INSTRUCTIONS
These instructions refer to the package you are installing as
some-package.tar.gz or some-package.zip. The .zip file is intended for use
on Windows.
The directory you choose for the installation will be referred to as
your-install-dir.
Note to Qt Visual Studio Integration users: In the instructions below,
instead of building from command line with nmake, you can use the menu
command 'Qt->Open Solution from .pro file' on the .pro files in the
example and plugin directories, and then build from within Visual
Studio.
Unpacking and installation
--------------------------
1. Unpacking the archive (if you have not done so already).
On Unix and Mac OS X (in a terminal window):
cd your-install-dir
gunzip some-package.tar.gz
tar xvf some-package.tar
This creates the subdirectory some-package containing the files.
On Windows:
Unpack the .zip archive by right-clicking it in explorer and
choosing "Extract All...". If your version of Windows does not
have zip support, you can use the infozip tools available
from www.info-zip.org.
If you are using the infozip tools (in a command prompt window):
cd your-install-dir
unzip some-package.zip
2. Configuring the package.
The configure script is called "configure" on unix/mac and
"configure.bat" on Windows. It should be run from a command line
after cd'ing to the package directory.
You can choose whether you want to use the component by including
its source code directly into your project, or build the component
as a dynamic shared library (DLL) that is loaded into the
application at run-time. The latter may be preferable for
technical or licensing (LGPL) reasons. If you want to build a DLL,
run the configure script with the argument "-library". Also see
the note about usage below.
(Components that are Qt plugins, e.g. styles and image formats,
are by default built as a plugin DLL.)
The configure script will prompt you in some cases for further
information. Answer these questions and carefully read the license text
before accepting the license conditions. The package cannot be used if
you do not accept the license conditions.
3. Building the component and examples (when required).
If a DLL is to be built, or if you would like to build the
examples, next give the commands
qmake
make [or nmake if your are using Microsoft Visual C++]
The example program(s) can be found in the directory called
"examples" or "example".
Components that are Qt plugins, e.g. styles and image formats, are
ready to be used as soon as they are built, so the rest of this
installation instruction can be skipped.
4. Building the Qt Designer plugin (optional).
Some of the widget components are provided with plugins for Qt
Designer. To build and install the plugin, cd into the
some-package/plugin directory and give the commands
qmake
make [or nmake if your are using Microsoft Visual C++]
Restart Qt Designer to make it load the new widget plugin.
Note: If you are using the built-in Qt Designer from the Qt Visual
Studio Integration, you will need to manually copy the plugin DLL
file, i.e. copy
%QTDIR%\plugins\designer\some-component.dll
to the Qt Visual Studio Integration plugin path, typically:
C:\Program Files\Trolltech\Qt VS Integration\plugins
Note: If you for some reason are using a Qt Designer that is built
in debug mode, you will need to build the plugin in debug mode
also. Edit the file plugin.pro in the plugin directory, changing
'release' to 'debug' in the CONFIG line, before running qmake.
Solutions components are intended to be used directly from the package
directory during development, so there is no 'make install' procedure.
Using a component in your project
---------------------------------
To use this component in your project, add the following line to the
project's .pro file (or do the equivalent in your IDE):
include(your-install-dir/some-package/src/some-package.pri)
This adds the package's sources and headers to the SOURCES and HEADERS
project variables respectively (or, if the component has been
configured as a DLL, it adds that library to the LIBS variable), and
updates INCLUDEPATH to contain the package's src
directory. Additionally, the .pri file may include some dependencies
needed by the package.
To include a header file from the package in your sources, you can now
simply use:
#include <SomeClass>
or alternatively, in pre-Qt 4 style:
#include <some-class.h>
Refer to the documentation to see the classes and headers this
components provides.
Install documentation (optional)
--------------------------------
The HTML documentation for the package's classes is located in the
your-install-dir/some-package/doc/html/index.html. You can open this
file and read the documentation with any web browser.
To install the documentation into Qt Assistant (for Qt version 4.4 and
later):
1. In Assistant, open the Edit->Preferences dialog and choose the
Documentation tab. Click the Add... button and select the file
your-install-dir/some-package/doc/html/some-package.qch
For Qt versions prior to 4.4, do instead the following:
1. The directory your-install-dir/some-package/doc/html contains a
file called some-package.dcf. Execute the following commands in a
shell, command prompt or terminal window:
cd your-install-dir/some-package/doc/html/
assistant -addContentFile some-package.dcf
The next time you start Qt Assistant, you can access the package's
documentation.
Removing the documentation from assistant
-----------------------------------------
If you have installed the documentation into Qt Assistant, and want to uninstall it, do as follows, for Qt version 4.4 and later:
1. In Assistant, open the Edit->Preferences dialog and choose the
Documentation tab. In the list of Registered Documentation, select
the item com.nokia.qtsolutions.some-package_version, and click
the Remove button.
For Qt versions prior to 4.4, do instead the following:
1. The directory your-install-dir/some-package/doc/html contains a
file called some-package.dcf. Execute the following commands in a
shell, command prompt or terminal window:
cd your-install-dir/some-package/doc/html/
assistant -removeContentFile some-package.dcf
Using the component as a DLL
----------------------------
1. Normal components
The shared library (DLL) is built and placed in the
some-package/lib directory. It is intended to be used directly
from there during development. When appropriate, both debug and
release versions are built, since the run-time linker will in some
cases refuse to load a debug-built DLL into a release-built
application or vice versa.
The following steps are taken by default to help the dynamic
linker to locate the DLL at run-time (during development):
Unix: The some-package.pri file will add linker instructions to
add the some-package/lib directory to the rpath of the
executable. (When distributing, or if your system does not support
rpath, you can copy the shared library to another place that is
searched by the dynamic linker, e.g. the "lib" directory of your
Qt installation.)
Mac: The full path to the library is hardcoded into the library
itself, from where it is copied into the executable at link time,
and ready by the dynamic linker at run-time. (When distributing,
you will want to edit these hardcoded paths in the same way as for
the Qt DLLs. Refer to the document "Deploying an Application on
Mac OS X" in the Qt Reference Documentation.)
Windows: the .dll file(s) are copied into the "bin" directory of
your Qt installation. The Qt installation will already have set up
that directory to be searched by the dynamic linker.
2. Plugins
For Qt Solutions plugins (e.g. image formats), both debug and
release versions of the plugin are built by default when
appropriate, since in some cases the release Qt library will not
load a debug plugin, and vice versa. The plugins are automatically
copied into the plugins directory of your Qt installation when
built, so no further setup is required.
Plugins may also be built statically, i.e. as a library that will be
linked into your application executable, and so will not need to
be redistributed as a separate plugin DLL to end users. Static
building is required if Qt itself is built statically. To do it,
just add "static" to the CONFIG variable in the plugin/plugin.pro
file before building. Refer to the "Static Plugins" section in the
chapter "How to Create Qt Plugins" for explanation of how to use a
static plugin in your application. The source code of the example
program(s) will also typically contain the relevant instructions
as comments.
Uninstalling
------------
The following command will remove any fils that have been
automatically placed outside the package directory itself during
installation and building
make distclean [or nmake if your are using Microsoft Visual C++]
If Qt Assistant documentation or Qt Designer plugins have been
installed, they can be uninstalled manually, ref. above.
Enjoy! :)
- The Qt Solutions Team.

View File

@ -1,33 +0,0 @@
Qt Solutions Component: Single Application
The QtSingleApplication component provides support for
applications that can be only started once per user.
Version history:
2.0: - Version 1.3 ported to Qt 4.
2.1: - Fix compilation problem on Mac.
2.2: - Really fix the Mac compilation problem.
- Mac: fix crash due to wrong object releasing.
- Mac: Fix memory leak.
2.3: - Windows: Force creation of internal widget to make it work
with Qt 4.2.
2.4: - Fix the system for automatic window raising on message
reception. NOTE: minor API change.
2.5: - Mac: Fix isRunning() to work and report correctly.
2.6: - - initialize() is now obsolete, no longer necessary to call
it
- - Fixed race condition where multiple instances migth be started
- - QtSingleCoreApplication variant provided for non-GUI (console)
usage
- Complete reimplementation. Visible changes:
- LGPL release.

View File

@ -1,13 +0,0 @@
TEMPLATE=lib
CONFIG += qt dll qtsingleapplication-buildlib
mac:CONFIG += absolute_library_soname
win32|mac:!wince*:!win32-msvc:!macx-xcode:CONFIG += debug_and_release build_all
include(../src/qtsingleapplication.pri)
TARGET = $$QTSINGLEAPPLICATION_LIBNAME
DESTDIR = $$QTSINGLEAPPLICATION_LIBDIR
win32 {
DLLDESTDIR = $$[QT_INSTALL_BINS]
QMAKE_DISTCLEAN += $$[QT_INSTALL_BINS]\\$${QTSINGLEAPPLICATION_LIBNAME}.dll
}
target.path = $$DESTDIR
INSTALLS += target

View File

@ -1,14 +0,0 @@
exists(config.pri):infile(config.pri, SOLUTIONS_LIBRARY, yes): CONFIG += qtsingleapplication-uselib
TEMPLATE += fakelib
greaterThan(QT_MAJOR_VERSION, 5)|\
if(equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 4))|\
if(equals(QT_MAJOR_VERSION, 5):equals(QT_MINOR_VERSION, 4):greaterThan(QT_PATCH_VERSION, 1)) {
QTSINGLEAPPLICATION_LIBNAME = $$qt5LibraryTarget(QtSolutions_SingleApplication-head)
} else {
QTSINGLEAPPLICATION_LIBNAME = $$qtLibraryTarget(QtSolutions_SingleApplication-head)
}
TEMPLATE -= fakelib
QTSINGLEAPPLICATION_LIBDIR = $$PWD/lib
unix:qtsingleapplication-uselib:!qtsingleapplication-buildlib:QMAKE_RPATHDIR += $$QTSINGLEAPPLICATION_LIBDIR

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@ -1,25 +0,0 @@
#!/bin/sh
if [ "x$1" != "x" -a "x$1" != "x-library" ]; then
echo "Usage: $0 [-library]"
echo
echo "-library: Build the component as a dynamic library (DLL). Default is to"
echo " include the component source code directly in the application."
echo
exit 0
fi
rm -f config.pri
if [ "x$1" = "x-library" ]; then
echo "Configuring to build this component as a dynamic library."
echo "SOLUTIONS_LIBRARY = yes" > config.pri
fi
echo
echo "This component is now configured."
echo
echo "To build the component library (if requested) and example(s),"
echo "run qmake and your make command."
echo
echo "To remove or reconfigure, run make distclean."
echo

View File

@ -1,80 +0,0 @@
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
:: Contact: http://www.qt-project.org/legal
::
:: This file is part of the Qt Solutions component.
::
:: $QT_BEGIN_LICENSE:BSD$
:: You may use this file under the terms of the BSD license as follows:
::
:: "Redistribution and use in source and binary forms, with or without
:: modification, are permitted provided that the following conditions are
:: met:
:: * Redistributions of source code must retain the above copyright
:: notice, this list of conditions and the following disclaimer.
:: * Redistributions in binary form must reproduce the above copyright
:: notice, this list of conditions and the following disclaimer in
:: the documentation and/or other materials provided with the
:: distribution.
:: * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
:: of its contributors may be used to endorse or promote products derived
:: from this software without specific prior written permission.
::
::
:: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
:: "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
:: LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
:: A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
:: OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
:: SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
:: LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
:: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
:: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
:: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
:: OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
::
:: $QT_END_LICENSE$
::
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
@echo off
rem
rem "Main"
rem
if not "%1"=="" (
if not "%1"=="-library" (
call :PrintUsage
goto EOF
)
)
if exist config.pri. del config.pri
if "%1"=="-library" (
echo Configuring to build this component as a dynamic library.
echo SOLUTIONS_LIBRARY = yes > config.pri
)
echo .
echo This component is now configured.
echo .
echo To build the component library (if requested) and example(s),
echo run qmake and your make or nmake command.
echo .
echo To remove or reconfigure, run make (nmake) distclean.
echo .
goto EOF
:PrintUsage
echo Usage: configure.bat [-library]
echo .
echo -library: Build the component as a dynamic library (DLL). Default is to
echo include the component source directly in the application.
echo A DLL may be preferable for technical or licensing (LGPL) reasons.
echo .
goto EOF
:EOF

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@ -1,284 +0,0 @@
BODY,H1,H2,H3,H4,H5,H6,P,CENTER,TD,TH,UL,DL,DIV {
font-family: Arial, Geneva, Helvetica, sans-serif;
}
H1 {
text-align: center;
font-size: 160%;
}
H2 {
font-size: 120%;
}
H3 {
font-size: 100%;
}
h3.fn,span.fn
{
background-color: #eee;
border-width: 1px;
border-style: solid;
border-color: #ddd;
font-weight: bold;
padding: 6px 0px 6px 10px;
margin: 42px 0px 0px 0px;
}
hr {
border: 0;
color: #a0a0a0;
background-color: #ccc;
height: 1px;
width: 100%;
text-align: left;
margin: 34px 0px 34px 0px;
}
table.valuelist {
border-width: 1px 1px 1px 1px;
border-style: solid;
border-color: #dddddd;
border-collapse: collapse;
background-color: #f0f0f0;
}
table.indextable {
border-width: 1px 1px 1px 1px;
border-style: solid;
border-collapse: collapse;
background-color: #f0f0f0;
border-color:#555;
font-size: 100%;
}
table td.largeindex {
border-width: 1px 1px 1px 1px;
border-collapse: collapse;
background-color: #f0f0f0;
border-color:#555;
font-size: 120%;
}
table.valuelist th {
border-width: 1px 1px 1px 2px;
padding: 4px;
border-style: solid;
border-color: #666;
color:white;
background-color:#666;
}
th.titleheader {
border-width: 1px 0px 1px 0px;
padding: 2px;
border-style: solid;
border-color: #666;
color:white;
background-color:#555;
background-image:url('images/gradient.png')};
background-repeat: repeat-x;
font-size: 100%;
}
th.largeheader {
border-width: 1px 0px 1px 0px;
padding: 4px;
border-style: solid;
border-color: #444;
color:white;
background-color:#555555;
font-size: 120%;
}
p {
margin-left: 4px;
margin-top: 8px;
margin-bottom: 8px;
}
a:link
{
color: #0046ad;
text-decoration: none
}
a:visited
{
color: #672967;
text-decoration: none
}
a.obsolete
{
color: #661100;
text-decoration: none
}
a.compat
{
color: #661100;
text-decoration: none
}
a.obsolete:visited
{
color: #995500;
text-decoration: none
}
a.compat:visited
{
color: #995500;
text-decoration: none
}
body
{
background: #ffffff;
color: black
}
table.generic, table.annotated
{
border-width: 1px;
border-color:#bbb;
border-style:solid;
border-collapse:collapse;
}
table td.memItemLeft {
width: 180px;
padding: 2px 0px 0px 8px;
margin: 4px;
border-width: 1px;
border-color: #E0E0E0;
border-style: none;
font-size: 100%;
white-space: nowrap
}
table td.memItemRight {
padding: 2px 8px 0px 8px;
margin: 4px;
border-width: 1px;
border-color: #E0E0E0;
border-style: none;
font-size: 100%;
}
table tr.odd {
background: #f0f0f0;
color: black;
}
table tr.even {
background: #e4e4e4;
color: black;
}
table.annotated th {
padding: 3px;
text-align: left
}
table.annotated td {
padding: 3px;
}
table tr pre
{
padding-top: 0px;
padding-bottom: 0px;
padding-left: 0px;
padding-right: 0px;
border: none;
background: none
}
tr.qt-style
{
background: #96E066;
color: black
}
body pre
{
padding: 0.2em;
border: #e7e7e7 1px solid;
background: #f1f1f1;
color: black
}
table tr.qt-code pre
{
padding: 0.2em;
border: #e7e7e7 1px solid;
background: #f1f1f1;
color: black
}
span.preprocessor, span.preprocessor a
{
color: darkblue;
}
span.comment
{
color: darkred;
font-style: italic
}
span.string,span.char
{
color: darkgreen;
}
.title
{
text-align: center
}
.subtitle
{
font-size: 0.8em
}
.small-subtitle
{
font-size: 0.65em
}
.qmlitem {
padding: 0;
}
.qmlname {
white-space: nowrap;
}
.qmltype {
text-align: center;
font-size: 160%;
}
.qmlproto {
background-color: #eee;
border-width: 1px;
border-style: solid;
border-color: #ddd;
font-weight: bold;
padding: 6px 10px 6px 10px;
margin: 42px 0px 0px 0px;
}
.qmlreadonly {
float: right;
color: red
}
.qmldoc {
}
*.qmlitem p {
}

Binary file not shown.

Before

Width:  |  Height:  |  Size: 4.0 KiB

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@ -1,48 +0,0 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<!-- index.qdoc -->
<head>
<title>Single Application</title>
<link href="classic.css" rel="stylesheet" type="text/css" />
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td align="left" valign="top" width="32"><img src="images/qt-logo.png" align="left" width="57" height="67" border="0" /></td>
<td width="1">&nbsp;&nbsp;</td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a></td>
</tr></table><h1 class="title">Single Application<br /><span class="subtitle"></span>
</h1>
<a name="description"></a>
<h2>Description</h2>
<p>The <a href="qtsingleapplication.html">QtSingleApplication</a> component provides support for applications that can be only started once per user.</p>
<p>For some applications it is useful or even critical that they are started only once by any user. Future attempts to start the application should activate any already running instance, and possibly perform requested actions, e.g&#x2e; loading a file, in that instance.</p>
<p>The <a href="qtsingleapplication.html">QtSingleApplication</a> class provides an interface to detect a running instance, and to send command strings to that instance. For console (non-GUI) applications, the <a href="qtsinglecoreapplication.html">QtSingleCoreApplication</a> variant is provided, which avoids dependency on <a href="http://qt.nokia.com/doc/4.6/qtgui.html">QtGui</a>.</p>
<a name="classes"></a>
<h2>Classes</h2>
<ul>
<li><a href="qtsingleapplication.html">QtSingleApplication</a></li>
<li><a href="qtsinglecoreapplication.html">QtSingleCoreApplication</a></li>
</ul>
<a name="examples"></a>
<h2>Examples</h2>
<ul>
<li><a href="qtsingleapplication-example-trivial.html">A Trivial Example</a></li>
<li><a href="qtsingleapplication-example-loader.html">Loading Documents</a></li>
<li><a href="qtsinglecoreapplication-example-console.html">A Non-GUI Example</a></li>
</ul>
<a name="tested-platforms"></a>
<h2>Tested platforms</h2>
<ul>
<li>Qt 4.4, 4.5 / Windows XP / MSVC.NET 2005</li>
<li>Qt 4.4, 4.5 / Linux / gcc</li>
<li>Qt 4.4, 4.5 / MacOS X 10.5 / gcc</li>
</ul>
<p /><address><hr /><div align="center">
<table width="100%" cellspacing="0" border="0"><tr class="address">
<td width="30%" align="left">Copyright &copy; 2010 Nokia Corporation and/or its subsidiary(-ies)</td>
<td width="40%" align="center"><a href="http://qt.nokia.com/doc/trademarks.html">Trademarks</a></td>
<td width="30%" align="right"><div align="right">Qt Solutions</div></td>
</tr></table></div></address></body>
</html>

View File

@ -1,175 +0,0 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<!-- loader.qdoc -->
<head>
<title>Loading Documents</title>
<link href="classic.css" rel="stylesheet" type="text/css" />
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td align="left" valign="top" width="32"><img src="images/qt-logo.png" align="left" width="57" height="67" border="0" /></td>
<td width="1">&nbsp;&nbsp;</td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a></td>
</tr></table><h1 class="title">Loading Documents<br /><span class="subtitle"></span>
</h1>
<p>The application in this example loads or prints the documents passed as commandline parameters to further instances of this application.</p>
<pre><span class="comment"> /****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Solutions component.
**
** You may use this file under the terms of the BSD license as follows:
**
** &quot;Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&quot;
**
****************************************************************************/</span>
#include &lt;qtsingleapplication.h&gt;
#include &lt;QtCore/QFile&gt;
#include &lt;QtGui/QMainWindow&gt;
#include &lt;QtGui/QPrinter&gt;
#include &lt;QtGui/QPainter&gt;
#include &lt;QtGui/QTextEdit&gt;
#include &lt;QtGui/QMdiArea&gt;
#include &lt;QtCore/QTextStream&gt;
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow();
public slots:
void handleMessage(const QString&amp; message);
signals:
void needToShow();
private:
QMdiArea *workspace;
};</pre>
<p>The user interface in this application is a <a href="http://qt.nokia.com/doc/4.6/qmainwindow.html">QMainWindow</a> subclass with a <a href="http://qt.nokia.com/doc/4.6/qmdiarea.html">QMdiArea</a> as the central widget. It implements a slot <tt>handleMessage()</tt> that will be connected to the messageReceived() signal of the <a href="qtsingleapplication.html">QtSingleApplication</a> class.</p>
<pre> MainWindow::MainWindow()
{
workspace = new QMdiArea(this);
setCentralWidget(workspace);
}</pre>
<p>The <a href="http://qt.nokia.com/doc/4.6/designer-to-know.html">MainWindow</a> constructor creates a minimal user interface.</p>
<pre> void MainWindow::handleMessage(const QString&amp; message)
{
enum Action {
Nothing,
Open,
Print
} action;
action = Nothing;
QString filename = message;
if (message.toLower().startsWith(&quot;/print &quot;)) {
filename = filename.mid(7);
action = Print;
} else if (!message.isEmpty()) {
action = Open;
}
if (action == Nothing) {
emit needToShow();
return;
}
QFile file(filename);
QString contents;
if (file.open(QIODevice::ReadOnly))
contents = file.readAll();
else
contents = &quot;[[Error: Could not load file &quot; + filename + &quot;]]&quot;;
QTextEdit *view = new QTextEdit;
view-&gt;setPlainText(contents);
switch(action) {</pre>
<p>The handleMessage() slot interprets the message passed in as a filename that can be prepended with <i>/print</i> to indicate that the file should just be printed rather than loaded.</p>
<pre> case Print:
{
QPrinter printer;
view-&gt;print(&amp;printer);
delete view;
}
break;
case Open:
{
workspace-&gt;addSubWindow(view);
view-&gt;setWindowTitle(message);
view-&gt;show();
emit needToShow();
}
break;
default:
break;
};
}</pre>
<p>Loading the file will also activate the window.</p>
<pre> #include &quot;main.moc&quot;
int main(int argc, char **argv)
{
QtSingleApplication instance(&quot;File loader QtSingleApplication example&quot;, argc, argv);
QString message;
for (int a = 1; a &lt; argc; ++a) {
message += argv[a];
if (a &lt; argc-1)
message += &quot; &quot;;
}
if (instance.sendMessage(message))
return 0;</pre>
<p>The <tt>main</tt> entry point function creates a <a href="qtsingleapplication.html">QtSingleApplication</a> object, and creates a message to send to a running instance of the application. If the message was sent successfully the process exits immediately.</p>
<pre> MainWindow mw;
mw.handleMessage(message);
mw.show();
QObject::connect(&amp;instance, SIGNAL(messageReceived(const QString&amp;)),
&amp;mw, SLOT(handleMessage(const QString&amp;)));
instance.setActivationWindow(&amp;mw, false);
QObject::connect(&amp;mw, SIGNAL(needToShow()), &amp;instance, SLOT(activateWindow()));
return instance.exec();
}</pre>
<p>If the message could not be sent the application starts up. Note that <tt>false</tt> is passed to the call to setActivationWindow() to prevent automatic activation for every message received, e.g&#x2e; when the application should just print a file. Instead, the message handling function determines whether activation is requested, and signals that by emitting the needToShow() signal. This is then simply connected directly to <a href="qtsingleapplication.html">QtSingleApplication</a>'s activateWindow() slot.</p>
<p /><address><hr /><div align="center">
<table width="100%" cellspacing="0" border="0"><tr class="address">
<td width="30%" align="left">Copyright &copy; 2010 Nokia Corporation and/or its subsidiary(-ies)</td>
<td width="40%" align="center"><a href="http://qt.nokia.com/doc/trademarks.html">Trademarks</a></td>
<td width="30%" align="right"><div align="right">Qt Solutions</div></td>
</tr></table></div></address></body>
</html>

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@ -1,101 +0,0 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<!-- trivial.qdoc -->
<head>
<title>A Trivial Example</title>
<link href="classic.css" rel="stylesheet" type="text/css" />
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td align="left" valign="top" width="32"><img src="images/qt-logo.png" align="left" width="57" height="67" border="0" /></td>
<td width="1">&nbsp;&nbsp;</td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a></td>
</tr></table><h1 class="title">A Trivial Example<br /><span class="subtitle"></span>
</h1>
<p>The application in this example has a log-view that displays messages sent by further instances of the same application.</p>
<p>The example demonstrates the use of the <a href="qtsingleapplication.html">QtSingleApplication</a> class to detect and communicate with a running instance of the application using the sendMessage() API. The messageReceived() signal is used to display received messages in a <a href="http://qt.nokia.com/doc/4.6/qtextedit.html">QTextEdit</a> log.</p>
<pre><span class="comment"> /****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Solutions component.
**
** You may use this file under the terms of the BSD license as follows:
**
** &quot;Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&quot;
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****************************************************************************/</span>
#include &lt;qtsingleapplication.h&gt;
#include &lt;QtGui/QTextEdit&gt;
class TextEdit : public QTextEdit
{
Q_OBJECT
public:
TextEdit(QWidget *parent = 0)
: QTextEdit(parent)
{}
public slots:
void append(const QString &amp;str)
{
QTextEdit::append(str);
}
};
#include &quot;main.moc&quot;
int main(int argc, char **argv)
{
QtSingleApplication instance(argc, argv);</pre>
<p>The example has only the <tt>main</tt> entry point function. A <a href="qtsingleapplication.html">QtSingleApplication</a> object is created immediately.</p>
<pre> if (instance.sendMessage(&quot;Wake up!&quot;))
return 0;</pre>
<p>If another instance of this application is already running, sendMessage() will succeed, and this instance just exits immediately.</p>
<pre> TextEdit logview;
logview.setReadOnly(true);
logview.show();</pre>
<p>Otherwise the instance continues as normal and creates the user interface.</p>
<pre> instance.setActivationWindow(&amp;logview);
QObject::connect(&amp;instance, SIGNAL(messageReceived(const QString&amp;)),
&amp;logview, SLOT(append(const QString&amp;)));
return instance.exec();</pre>
<p>The <tt>logview</tt> object is also set as the application's activation window. Every time a message is received, the window will be raised and activated automatically.</p>
<p>The messageReceived() signal is also connected to the <a href="http://qt.nokia.com/doc/4.6/qtextedit.html">QTextEdit</a>'s append() slot. Every message received from further instances of this application will be displayed in the log.</p>
<p>Finally the event loop is entered.</p>
<p /><address><hr /><div align="center">
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<td width="30%" align="left">Copyright &copy; 2010 Nokia Corporation and/or its subsidiary(-ies)</td>
<td width="40%" align="center"><a href="http://qt.nokia.com/doc/trademarks.html">Trademarks</a></td>
<td width="30%" align="right"><div align="right">Qt Solutions</div></td>
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</tr></table><h1 class="title">List of All Members for QtSingleApplication</h1>
<p>This is the complete list of members for <a href="qtsingleapplication.html">QtSingleApplication</a>, including inherited members.</p>
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<tr><td width="45%" valign="top"><ul>
<li><div class="fn">enum <b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#ColorSpec-enum">ColorSpec</a></b></div></li>
<li><div class="fn">enum <b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#Encoding-enum">Encoding</a></b></div></li>
<li><div class="fn">typedef <b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#EventFilter-typedef">EventFilter</a></b></div></li>
<li><div class="fn">typedef <b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#QS60MainApplicationFactory-typedef">QS60MainApplicationFactory</a></b></div></li>
<li><div class="fn">enum <b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#Type-enum">Type</a></b></div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#QtSingleApplication">QtSingleApplication</a></b> ( int &amp;, char **, bool )</div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#QtSingleApplication-2">QtSingleApplication</a></b> ( const QString &amp;, int &amp;, char ** )</div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#QtSingleApplication-3">QtSingleApplication</a></b> ( int &amp;, char **, Type )</div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#QtSingleApplication-4">QtSingleApplication</a></b> ( Display *, Qt::HANDLE, Qt::HANDLE )</div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#QtSingleApplication-5">QtSingleApplication</a></b> ( Display *, int &amp;, char **, Qt::HANDLE, Qt::HANDLE )</div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#QtSingleApplication-6">QtSingleApplication</a></b> ( Display *, const QString &amp;, int, char **, Qt::HANDLE, Qt::HANDLE )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#aboutQt">aboutQt</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#aboutToQuit">aboutToQuit</a></b> ()</div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#activateWindow">activateWindow</a></b> ()</div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#activationWindow">activationWindow</a></b> () const : QWidget *</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#activeModalWidget">activeModalWidget</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#activePopupWidget">activePopupWidget</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#activeWindow">activeWindow</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#addLibraryPath">addLibraryPath</a></b> ( const QString &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#alert">alert</a></b> ( QWidget *, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#allWidgets">allWidgets</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationDirPath">applicationDirPath</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationFilePath">applicationFilePath</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationName-prop">applicationName</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationPid">applicationPid</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationVersion-prop">applicationVersion</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#arguments">arguments</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#autoMaximizeThreshold-prop">autoMaximizeThreshold</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#autoSipEnabled-prop">autoSipEnabled</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#beep">beep</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#blockSignals">blockSignals</a></b> ( bool )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#changeOverrideCursor">changeOverrideCursor</a></b> ( const QCursor &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#childEvent">childEvent</a></b> ( QChildEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#children">children</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#clipboard">clipboard</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#closeAllWindows">closeAllWindows</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#closingDown">closingDown</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#colorSpec">colorSpec</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#commitData">commitData</a></b> ( QSessionManager &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#commitDataRequest">commitDataRequest</a></b> ( QSessionManager &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#connect">connect</a></b> ( const QObject *, const char *, const QObject *, const char *, Qt::ConnectionType )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#connect-2">connect</a></b> ( const QObject *, const char *, const char *, Qt::ConnectionType ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#connectNotify">connectNotify</a></b> ( const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#cursorFlashTime-prop">cursorFlashTime</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#customEvent">customEvent</a></b> ( QEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#d_ptr-var">d_ptr</a></b> : </div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#deleteLater">deleteLater</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#desktop">desktop</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#desktopSettingsAware">desktopSettingsAware</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#destroyed">destroyed</a></b> ( QObject * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#disconnect">disconnect</a></b> ( const QObject *, const char *, const QObject *, const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#disconnect-2">disconnect</a></b> ( const char *, const QObject *, const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#disconnect-3">disconnect</a></b> ( const QObject *, const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#disconnectNotify">disconnectNotify</a></b> ( const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#doubleClickInterval-prop">doubleClickInterval</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#dumpObjectInfo">dumpObjectInfo</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#dumpObjectTree">dumpObjectTree</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#dynamicPropertyNames">dynamicPropertyNames</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#event">event</a></b> ( QEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#eventFilter">eventFilter</a></b> ( QObject *, QEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#exec">exec</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#exit">exit</a></b> ( int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#filterEvent">filterEvent</a></b> ( void *, long * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#findChild">findChild</a></b> ( const QString &amp; ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#findChildren">findChildren</a></b> ( const QString &amp; ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#findChildren-2">findChildren</a></b> ( const QRegExp &amp; ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#flush">flush</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#focusChanged">focusChanged</a></b> ( QWidget *, QWidget * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#focusWidget">focusWidget</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#font">font</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#font-2">font</a></b> ( const QWidget * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#font-3">font</a></b> ( const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#fontDatabaseChanged">fontDatabaseChanged</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#fontMetrics">fontMetrics</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#globalStrut-prop">globalStrut</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#hasPendingEvents">hasPendingEvents</a></b> ()</div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#id">id</a></b> () const : QString</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#inherits">inherits</a></b> ( const char * ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#inputContext">inputContext</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#installEventFilter">installEventFilter</a></b> ( QObject * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#installTranslator">installTranslator</a></b> ( QTranslator * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#instance">instance</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#isEffectEnabled">isEffectEnabled</a></b> ( Qt::UIEffect )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#isLeftToRight">isLeftToRight</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#isRightToLeft">isRightToLeft</a></b> ()</div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#isRunning">isRunning</a></b> () : bool</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#isSessionRestored">isSessionRestored</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#isWidgetType">isWidgetType</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#keyboardInputDirection">keyboardInputDirection</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#keyboardInputInterval-prop">keyboardInputInterval</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#keyboardInputLocale">keyboardInputLocale</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#keyboardModifiers">keyboardModifiers</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#keypadNavigationEnabled">keypadNavigationEnabled</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#killTimer">killTimer</a></b> ( int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#lastWindowClosed">lastWindowClosed</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#layoutDirection-prop">layoutDirection</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#libraryPaths">libraryPaths</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#macEventFilter">macEventFilter</a></b> ( EventHandlerCallRef, EventRef )</div></li>
<li><div class="fn"><b><a href="qtsingleapplication.html#messageReceived">messageReceived</a></b> ( const QString &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#metaObject">metaObject</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#mouseButtons">mouseButtons</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#moveToThread">moveToThread</a></b> ( QThread * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#navigationMode">navigationMode</a></b> ()</div></li>
</ul></td><td valign="top"><ul>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#notify">notify</a></b> ( QObject *, QEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#objectName-prop">objectName</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#organizationDomain-prop">organizationDomain</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#organizationName-prop">organizationName</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#overrideCursor">overrideCursor</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#palette">palette</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#palette-2">palette</a></b> ( const QWidget * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#palette-3">palette</a></b> ( const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#parent">parent</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#postEvent">postEvent</a></b> ( QObject *, QEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#postEvent-2">postEvent</a></b> ( QObject *, QEvent *, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#processEvents">processEvents</a></b> ( QFlags&lt;QEventLoop::ProcessEventsFlag&gt; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#processEvents-2">processEvents</a></b> ( QFlags&lt;QEventLoop::ProcessEventsFlag&gt;, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#property">property</a></b> ( const char * ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#quit">quit</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#quitOnLastWindowClosed-prop">quitOnLastWindowClosed</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#qwsDecoration">qwsDecoration</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#qwsEventFilter">qwsEventFilter</a></b> ( QWSEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#qwsSetCustomColors">qwsSetCustomColors</a></b> ( QRgb *, int, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qapplication.html#qwsSetDecoration">qwsSetDecoration</a></b> ( QDecoration * )</div></li>
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<h3 class="fn"><a name="initialize"></a>void QtSingleApplication::initialize ( bool <i>dummy</i> = true )</h3>
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<p>The QtSingleApplication class provides an API to detect and communicate with running instances of an application. <a href="#details">More...</a></p>
<pre> #include &lt;QtSingleApplication&gt;</pre><p>Inherits <a href="http://qt.nokia.com/doc/4.6/qapplication.html">QApplication</a>.</p>
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<table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qtsingleapplication.html#activateWindow">activateWindow</a></b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b><a href="qtsingleapplication.html#sendMessage">sendMessage</a></b> ( const QString &amp; <i>message</i>, int <i>timeout</i> = 5000 )</td></tr>
</table>
<ul>
<li><div bar="2" class="fn"></div>7 public slots inherited from <a href="http://qt.nokia.com/doc/4.6/qapplication.html#public-slots">QApplication</a></li>
<li><div bar="2" class="fn"></div>1 public slot inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#public-slots">QCoreApplication</a></li>
<li><div bar="2" class="fn"></div>1 public slot inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#public-slots">QObject</a></li>
</ul>
<hr />
<a name="signals"></a>
<h2>Signals</h2>
<table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qtsingleapplication.html#messageReceived">messageReceived</a></b> ( const QString &amp; <i>message</i> )</td></tr>
</table>
<ul>
<li><div bar="2" class="fn"></div>5 signals inherited from <a href="http://qt.nokia.com/doc/4.6/qapplication.html#signals">QApplication</a></li>
<li><div bar="2" class="fn"></div>1 signal inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#signals">QCoreApplication</a></li>
<li><div bar="2" class="fn"></div>1 signal inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#signals">QObject</a></li>
</ul>
<h3>Additional Inherited Members</h3>
<ul>
<li><div class="fn"></div>13 properties inherited from <a href="http://qt.nokia.com/doc/4.6/qapplication.html#properties">QApplication</a></li>
<li><div class="fn"></div>4 properties inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#properties">QCoreApplication</a></li>
<li><div class="fn"></div>1 property inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#properties">QObject</a></li>
<li><div class="fn"></div>1 public type inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#public-variables">QObject</a></li>
<li><div class="fn"></div>73 static public members inherited from <a href="http://qt.nokia.com/doc/4.6/qapplication.html#static-public-members">QApplication</a></li>
<li><div class="fn"></div>38 static public members inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#static-public-members">QCoreApplication</a></li>
<li><div class="fn"></div>4 static public members inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#static-public-members">QObject</a></li>
<li><div class="fn"></div>1 protected function inherited from <a href="http://qt.nokia.com/doc/4.6/qapplication.html#protected-functions">QApplication</a></li>
<li><div class="fn"></div>1 protected function inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#protected-functions">QCoreApplication</a></li>
<li><div class="fn"></div>7 protected functions inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#protected-functions">QObject</a></li>
<li><div class="fn"></div>2 protected variables inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#protected-variables">QObject</a></li>
</ul>
<a name="details"></a>
<hr />
<h2>Detailed Description</h2>
<p>The QtSingleApplication class provides an API to detect and communicate with running instances of an application.</p>
<p>This class allows you to create applications where only one instance should be running at a time. I.e&#x2e;, if the user tries to launch another instance, the already running instance will be activated instead. Another usecase is a client-server system, where the first started instance will assume the role of server, and the later instances will act as clients of that server.</p>
<p>By default, the full path of the executable file is used to determine whether two processes are instances of the same application. You can also provide an explicit identifier string that will be compared instead.</p>
<p>The application should create the QtSingleApplication object early in the startup phase, and call <a href="qtsingleapplication.html#isRunning">isRunning</a>() to find out if another instance of this application is already running. If <a href="qtsingleapplication.html#isRunning">isRunning</a>() returns false, it means that no other instance is running, and this instance has assumed the role as the running instance. In this case, the application should continue with the initialization of the application user interface before entering the event loop with <a href="http://qt.nokia.com/doc/4.6/qapplication.html#exec">exec</a>(), as normal.</p>
<p>The <a href="qtsingleapplication.html#messageReceived">messageReceived</a>() signal will be emitted when the running application receives messages from another instance of the same application. When a message is received it might be helpful to the user to raise the application so that it becomes visible. To facilitate this, QtSingleApplication provides the <a href="qtsingleapplication.html#setActivationWindow">setActivationWindow</a>() function and the <a href="qtsingleapplication.html#activateWindow">activateWindow</a>() slot.</p>
<p>If <a href="qtsingleapplication.html#isRunning">isRunning</a>() returns true, another instance is already running. It may be alerted to the fact that another instance has started by using the <a href="qtsingleapplication.html#sendMessage">sendMessage</a>() function. Also data such as startup parameters (e.g&#x2e; the name of the file the user wanted this new instance to open) can be passed to the running instance with this function. Then, the application should terminate (or enter client mode).</p>
<p>If <a href="qtsingleapplication.html#isRunning">isRunning</a>() returns true, but <a href="qtsingleapplication.html#sendMessage">sendMessage</a>() fails, that is an indication that the running instance is frozen.</p>
<p>Here's an example that shows how to convert an existing application to use QtSingleApplication. It is very simple and does not make use of all QtSingleApplication's functionality (see the examples for that).</p>
<pre><span class="comment"> // Original</span>
int main(int argc, char **argv)
{
QApplication app(argc, argv);
MyMainWidget mmw;
mmw.show();
return app.exec();
}
<span class="comment"> // Single instance</span>
int main(int argc, char **argv)
{
QtSingleApplication app(argc, argv);
if (app.isRunning())
return !app.sendMessage(someDataString);
MyMainWidget mmw;
app.setActivationWindow(&amp;mmw);
mmw.show();
return app.exec();
}</pre>
<p>Once this QtSingleApplication instance is destroyed (normally when the process exits or crashes), when the user next attempts to run the application this instance will not, of course, be encountered. The next instance to call <a href="qtsingleapplication.html#isRunning">isRunning</a>() or <a href="qtsingleapplication.html#sendMessage">sendMessage</a>() will assume the role as the new running instance.</p>
<p>For console (non-GUI) applications, <a href="qtsinglecoreapplication.html">QtSingleCoreApplication</a> may be used instead of this class, to avoid the dependency on the <a href="http://qt.nokia.com/doc/4.6/qtgui.html">QtGui</a> library.</p>
<p>See also <a href="qtsinglecoreapplication.html">QtSingleCoreApplication</a>.</p>
<hr />
<h2>Member Function Documentation</h2>
<h3 class="fn"><a name="QtSingleApplication"></a>QtSingleApplication::QtSingleApplication ( int &amp; <i>argc</i>, char ** <i>argv</i>, bool <i>GUIenabled</i> = true )</h3>
<p>Creates a <a href="qtsingleapplication.html">QtSingleApplication</a> object. The application identifier will be <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationFilePath">QCoreApplication::applicationFilePath</a>(). <i>argc</i>, <i>argv</i>, and <i>GUIenabled</i> are passed on to the QAppliation constructor.</p>
<p>If you are creating a console application (i.e&#x2e; setting <i>GUIenabled</i> to false), you may consider using <a href="qtsinglecoreapplication.html">QtSingleCoreApplication</a> instead.</p>
<h3 class="fn"><a name="QtSingleApplication-2"></a>QtSingleApplication::QtSingleApplication ( const <a href="http://qt.nokia.com/doc/4.6/qstring.html">QString</a> &amp; <i>appId</i>, int &amp; <i>argc</i>, char ** <i>argv</i> )</h3>
<p>Creates a <a href="qtsingleapplication.html">QtSingleApplication</a> object with the application identifier <i>appId</i>. <i>argc</i> and <i>argv</i> are passed on to the QAppliation constructor.</p>
<h3 class="fn"><a name="QtSingleApplication-3"></a>QtSingleApplication::QtSingleApplication ( int &amp; <i>argc</i>, char ** <i>argv</i>, <a href="http://qt.nokia.com/doc/4.6/qapplication.html#Type-enum">Type</a> <i>type</i> )</h3>
<p>Creates a <a href="qtsingleapplication.html">QtSingleApplication</a> object. The application identifier will be <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationFilePath">QCoreApplication::applicationFilePath</a>(). <i>argc</i>, <i>argv</i>, and <i>type</i> are passed on to the QAppliation constructor.</p>
<h3 class="fn"><a name="QtSingleApplication-4"></a>QtSingleApplication::QtSingleApplication ( Display * <i>dpy</i>, <a href="http://qt.nokia.com/doc/4.6/qt.html#HANDLE-typedef">Qt::HANDLE</a> <i>visual</i> = 0, <a href="http://qt.nokia.com/doc/4.6/qt.html#HANDLE-typedef">Qt::HANDLE</a> <i>cmap</i> = 0 )</h3>
<p>Special constructor for X11, ref. the documentation of <a href="http://qt.nokia.com/doc/4.6/qapplication.html">QApplication</a>'s corresponding constructor. The application identifier will be <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationFilePath">QCoreApplication::applicationFilePath</a>(). <i>dpy</i>, <i>visual</i>, and <i>cmap</i> are passed on to the <a href="http://qt.nokia.com/doc/4.6/qapplication.html">QApplication</a> constructor.</p>
<h3 class="fn"><a name="QtSingleApplication-5"></a>QtSingleApplication::QtSingleApplication ( Display * <i>dpy</i>, int &amp; <i>argc</i>, char ** <i>argv</i>, <a href="http://qt.nokia.com/doc/4.6/qt.html#HANDLE-typedef">Qt::HANDLE</a> <i>visual</i> = 0, <a href="http://qt.nokia.com/doc/4.6/qt.html#HANDLE-typedef">Qt::HANDLE</a> <i>cmap</i> = 0 )</h3>
<p>Special constructor for X11, ref. the documentation of <a href="http://qt.nokia.com/doc/4.6/qapplication.html">QApplication</a>'s corresponding constructor. The application identifier will be <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationFilePath">QCoreApplication::applicationFilePath</a>(). <i>dpy</i>, <i>argc</i>, <i>argv</i>, <i>visual</i>, and <i>cmap</i> are passed on to the <a href="http://qt.nokia.com/doc/4.6/qapplication.html">QApplication</a> constructor.</p>
<h3 class="fn"><a name="QtSingleApplication-6"></a>QtSingleApplication::QtSingleApplication ( Display * <i>dpy</i>, const <a href="http://qt.nokia.com/doc/4.6/qstring.html">QString</a> &amp; <i>appId</i>, int <i>argc</i>, char ** <i>argv</i>, <a href="http://qt.nokia.com/doc/4.6/qt.html#HANDLE-typedef">Qt::HANDLE</a> <i>visual</i> = 0, <a href="http://qt.nokia.com/doc/4.6/qt.html#HANDLE-typedef">Qt::HANDLE</a> <i>cmap</i> = 0 )</h3>
<p>Special constructor for X11, ref. the documentation of <a href="http://qt.nokia.com/doc/4.6/qapplication.html">QApplication</a>'s corresponding constructor. The application identifier will be <i>appId</i>. <i>dpy</i>, <i>argc</i>, <i>argv</i>, <i>visual</i>, and <i>cmap</i> are passed on to the <a href="http://qt.nokia.com/doc/4.6/qapplication.html">QApplication</a> constructor.</p>
<h3 class="fn"><a name="activateWindow"></a>void QtSingleApplication::activateWindow ()&nbsp;&nbsp;<tt> [slot]</tt></h3>
<p>De-minimizes, raises, and activates this application's activation window. This function does nothing if no activation window has been set.</p>
<p>This is a convenience function to show the user that this application instance has been activated when he has tried to start another instance.</p>
<p>This function should typically be called in response to the <a href="qtsingleapplication.html#messageReceived">messageReceived</a>() signal. By default, that will happen automatically, if an activation window has been set.</p>
<p>See also <a href="qtsingleapplication.html#setActivationWindow">setActivationWindow</a>(), <a href="qtsingleapplication.html#messageReceived">messageReceived</a>(), and <a href="qtsingleapplication-obsolete.html#initialize" class="obsolete">initialize</a>().</p>
<h3 class="fn"><a name="activationWindow"></a><a href="http://qt.nokia.com/doc/4.6/qwidget.html">QWidget</a> * QtSingleApplication::activationWindow () const</h3>
<p>Returns the applications activation window if one has been set by calling <a href="qtsingleapplication.html#setActivationWindow">setActivationWindow</a>(), otherwise returns 0.</p>
<p>See also <a href="qtsingleapplication.html#setActivationWindow">setActivationWindow</a>().</p>
<h3 class="fn"><a name="id"></a><a href="http://qt.nokia.com/doc/4.6/qstring.html">QString</a> QtSingleApplication::id () const</h3>
<p>Returns the application identifier. Two processes with the same identifier will be regarded as instances of the same application.</p>
<h3 class="fn"><a name="isRunning"></a>bool QtSingleApplication::isRunning ()</h3>
<p>Returns true if another instance of this application is running; otherwise false.</p>
<p>This function does not find instances of this application that are being run by a different user (on Windows: that are running in another session).</p>
<p>See also <a href="qtsingleapplication.html#sendMessage">sendMessage</a>().</p>
<h3 class="fn"><a name="messageReceived"></a>void QtSingleApplication::messageReceived ( const <a href="http://qt.nokia.com/doc/4.6/qstring.html">QString</a> &amp; <i>message</i> )&nbsp;&nbsp;<tt> [signal]</tt></h3>
<p>This signal is emitted when the current instance receives a <i>message</i> from another instance of this application.</p>
<p>See also <a href="qtsingleapplication.html#sendMessage">sendMessage</a>(), <a href="qtsingleapplication.html#setActivationWindow">setActivationWindow</a>(), and <a href="qtsingleapplication.html#activateWindow">activateWindow</a>().</p>
<h3 class="fn"><a name="sendMessage"></a>bool QtSingleApplication::sendMessage ( const <a href="http://qt.nokia.com/doc/4.6/qstring.html">QString</a> &amp; <i>message</i>, int <i>timeout</i> = 5000 )&nbsp;&nbsp;<tt> [slot]</tt></h3>
<p>Tries to send the text <i>message</i> to the currently running instance. The <a href="qtsingleapplication.html">QtSingleApplication</a> object in the running instance will emit the <a href="qtsingleapplication.html#messageReceived">messageReceived</a>() signal when it receives the message.</p>
<p>This function returns true if the message has been sent to, and processed by, the current instance. If there is no instance currently running, or if the running instance fails to process the message within <i>timeout</i> milliseconds, this function return false.</p>
<p>See also <a href="qtsingleapplication.html#isRunning">isRunning</a>() and <a href="qtsingleapplication.html#messageReceived">messageReceived</a>().</p>
<h3 class="fn"><a name="setActivationWindow"></a>void QtSingleApplication::setActivationWindow ( <a href="http://qt.nokia.com/doc/4.6/qwidget.html">QWidget</a> * <i>aw</i>, bool <i>activateOnMessage</i> = true )</h3>
<p>Sets the activation window of this application to <i>aw</i>. The activation window is the widget that will be activated by <a href="qtsingleapplication.html#activateWindow">activateWindow</a>(). This is typically the application's main window.</p>
<p>If <i>activateOnMessage</i> is true (the default), the window will be activated automatically every time a message is received, just prior to the <a href="qtsingleapplication.html#messageReceived">messageReceived</a>() signal being emitted.</p>
<p>See also <a href="qtsingleapplication.html#activationWindow">activationWindow</a>(), <a href="qtsingleapplication.html#activateWindow">activateWindow</a>(), and <a href="qtsingleapplication.html#messageReceived">messageReceived</a>().</p>
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<parameter left="const QString &amp;" right="" name="message" default=""/>
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<link href="classic.css" rel="stylesheet" type="text/css" />
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<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
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</tr></table><h1 class="title">A non-GUI example<br /><span class="subtitle"></span>
</h1>
<p>This example shows how to use the single-application functionality in a console application. It does not require the <tt>QtGui</tt> library at all.</p>
<p>The only differences from the GUI application usage demonstrated in the other examples are:</p>
<p>1) The <tt>.pro</tt> file should include <tt>qtsinglecoreapplication.pri</tt> instead of <tt>qtsingleapplication.pri</tt></p>
<p>2) The class name is <tt>QtSingleCoreApplication</tt> instead of <tt>QtSingleApplication</tt>.</p>
<p>3) No calls are made regarding window activation, for obvious reasons.</p>
<p>console.pro:</p>
<pre> TEMPLATE = app
CONFIG += console
SOURCES += main.cpp
include(../../src/qtsinglecoreapplication.pri)
QT -= gui</pre>
<p>main.cpp:</p>
<pre><span class="comment"> /****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Solutions component.
**
** You may use this file under the terms of the BSD license as follows:
**
** &quot;Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&quot;
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****************************************************************************/</span>
#include &quot;qtsinglecoreapplication.h&quot;
#include &lt;QtCore/QDebug&gt;
void report(const QString&amp; msg)
{
qDebug(&quot;[%i] %s&quot;, (int)QCoreApplication::applicationPid(), qPrintable(msg));
}
class MainClass : public QObject
{
Q_OBJECT
public:
MainClass()
: QObject()
{}
public slots:
void handleMessage(const QString&amp; message)
{
report( &quot;Message received: \&quot;&quot; + message + &quot;\&quot;&quot;);
}
};
int main(int argc, char **argv)
{
report(&quot;Starting up&quot;);
QtSingleCoreApplication app(argc, argv);
if (app.isRunning()) {
QString msg(QString(&quot;Hi master, I am %1.&quot;).arg(QCoreApplication::applicationPid()));
bool sentok = app.sendMessage(msg, 2000);
QString rep(&quot;Another instance is running, so I will exit.&quot;);
rep += sentok ? &quot; Message sent ok.&quot; : &quot; Message sending failed; the other instance may be frozen.&quot;;
report(rep);
return 0;
} else {
report(&quot;No other instance is running; so I will.&quot;);
MainClass mainObj;
QObject::connect(&amp;app, SIGNAL(messageReceived(const QString&amp;)),
&amp;mainObj, SLOT(handleMessage(const QString&amp;)));
return app.exec();
}
}
#include &quot;main.moc&quot;</pre>
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<td width="30%" align="right"><div align="right">Qt Solutions</div></td>
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<head>
<title>List of All Members for QtSingleCoreApplication</title>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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</tr></table><h1 class="title">List of All Members for QtSingleCoreApplication</h1>
<p>This is the complete list of members for <a href="qtsinglecoreapplication.html">QtSingleCoreApplication</a>, including inherited members.</p>
<p><table class="propsummary" width="100%" border="0" cellpadding="0" cellspacing="0">
<tr><td width="45%" valign="top"><ul>
<li><div class="fn">enum <b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#Encoding-enum">Encoding</a></b></div></li>
<li><div class="fn">typedef <b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#EventFilter-typedef">EventFilter</a></b></div></li>
<li><div class="fn"><b><a href="qtsinglecoreapplication.html#QtSingleCoreApplication">QtSingleCoreApplication</a></b> ( int &amp;, char ** )</div></li>
<li><div class="fn"><b><a href="qtsinglecoreapplication.html#QtSingleCoreApplication-2">QtSingleCoreApplication</a></b> ( const QString &amp;, int &amp;, char ** )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#aboutToQuit">aboutToQuit</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#addLibraryPath">addLibraryPath</a></b> ( const QString &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationDirPath">applicationDirPath</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationFilePath">applicationFilePath</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationName-prop">applicationName</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationPid">applicationPid</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationVersion-prop">applicationVersion</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#arguments">arguments</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#blockSignals">blockSignals</a></b> ( bool )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#childEvent">childEvent</a></b> ( QChildEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#children">children</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#closingDown">closingDown</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#connect">connect</a></b> ( const QObject *, const char *, const QObject *, const char *, Qt::ConnectionType )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#connect-2">connect</a></b> ( const QObject *, const char *, const char *, Qt::ConnectionType ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#connectNotify">connectNotify</a></b> ( const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#customEvent">customEvent</a></b> ( QEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#d_ptr-var">d_ptr</a></b> : </div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#deleteLater">deleteLater</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#destroyed">destroyed</a></b> ( QObject * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#disconnect">disconnect</a></b> ( const QObject *, const char *, const QObject *, const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#disconnect-2">disconnect</a></b> ( const char *, const QObject *, const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#disconnect-3">disconnect</a></b> ( const QObject *, const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#disconnectNotify">disconnectNotify</a></b> ( const char * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#dumpObjectInfo">dumpObjectInfo</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#dumpObjectTree">dumpObjectTree</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#dynamicPropertyNames">dynamicPropertyNames</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#event">event</a></b> ( QEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#eventFilter">eventFilter</a></b> ( QObject *, QEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#exec">exec</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#exit">exit</a></b> ( int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#filterEvent">filterEvent</a></b> ( void *, long * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#findChild">findChild</a></b> ( const QString &amp; ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#findChildren">findChildren</a></b> ( const QString &amp; ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#findChildren-2">findChildren</a></b> ( const QRegExp &amp; ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#flush">flush</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#hasPendingEvents">hasPendingEvents</a></b> ()</div></li>
<li><div class="fn"><b><a href="qtsinglecoreapplication.html#id">id</a></b> () const : QString</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#inherits">inherits</a></b> ( const char * ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#installEventFilter">installEventFilter</a></b> ( QObject * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#installTranslator">installTranslator</a></b> ( QTranslator * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#instance">instance</a></b> ()</div></li>
<li><div class="fn"><b><a href="qtsinglecoreapplication.html#isRunning">isRunning</a></b> () : bool</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#isWidgetType">isWidgetType</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#killTimer">killTimer</a></b> ( int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#libraryPaths">libraryPaths</a></b> ()</div></li>
</ul></td><td valign="top"><ul>
<li><div class="fn"><b><a href="qtsinglecoreapplication.html#messageReceived">messageReceived</a></b> ( const QString &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#metaObject">metaObject</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#moveToThread">moveToThread</a></b> ( QThread * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#notify">notify</a></b> ( QObject *, QEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#objectName-prop">objectName</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#organizationDomain-prop">organizationDomain</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#organizationName-prop">organizationName</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#parent">parent</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#postEvent">postEvent</a></b> ( QObject *, QEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#postEvent-2">postEvent</a></b> ( QObject *, QEvent *, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#processEvents">processEvents</a></b> ( QFlags&lt;QEventLoop::ProcessEventsFlag&gt; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#processEvents-2">processEvents</a></b> ( QFlags&lt;QEventLoop::ProcessEventsFlag&gt;, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#property">property</a></b> ( const char * ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#quit">quit</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#receivers">receivers</a></b> ( const char * ) const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#removeEventFilter">removeEventFilter</a></b> ( QObject * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#removeLibraryPath">removeLibraryPath</a></b> ( const QString &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#removePostedEvents">removePostedEvents</a></b> ( QObject * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#removePostedEvents-2">removePostedEvents</a></b> ( QObject *, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#removeTranslator">removeTranslator</a></b> ( QTranslator * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#sendEvent">sendEvent</a></b> ( QObject *, QEvent * )</div></li>
<li><div class="fn"><b><a href="qtsinglecoreapplication.html#sendMessage">sendMessage</a></b> ( const QString &amp;, int ) : bool</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#sendPostedEvents">sendPostedEvents</a></b> ( QObject *, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#sendPostedEvents-2">sendPostedEvents</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#sender">sender</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationName-prop">setApplicationName</a></b> ( const QString &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationVersion-prop">setApplicationVersion</a></b> ( const QString &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#setAttribute">setAttribute</a></b> ( Qt::ApplicationAttribute, bool )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#setEventFilter">setEventFilter</a></b> ( EventFilter )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#setLibraryPaths">setLibraryPaths</a></b> ( const QStringList &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#objectName-prop">setObjectName</a></b> ( const QString &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#organizationDomain-prop">setOrganizationDomain</a></b> ( const QString &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#organizationName-prop">setOrganizationName</a></b> ( const QString &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#setParent">setParent</a></b> ( QObject * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#setProperty">setProperty</a></b> ( const char *, const QVariant &amp; )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#signalsBlocked">signalsBlocked</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#startTimer">startTimer</a></b> ( int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#startingUp">startingUp</a></b> ()</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#staticMetaObject-var">staticMetaObject</a></b> : </div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#staticQtMetaObject-var">staticQtMetaObject</a></b> : </div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#testAttribute">testAttribute</a></b> ( Qt::ApplicationAttribute )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#thread">thread</a></b> () const</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#timerEvent">timerEvent</a></b> ( QTimerEvent * )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#tr">tr</a></b> ( const char *, const char *, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qobject.html#trUtf8">trUtf8</a></b> ( const char *, const char *, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#translate">translate</a></b> ( const char *, const char *, const char *, Encoding, int )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#translate-2">translate</a></b> ( const char *, const char *, const char *, Encoding )</div></li>
<li><div class="fn"><b><a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#winEventFilter">winEventFilter</a></b> ( MSG *, long * )</div></li>
</ul>
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</table></p>
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<td width="1">&nbsp;&nbsp;</td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a></td>
</tr></table><h1 class="title">QtSingleCoreApplication Class Reference</h1>
<p>A variant of the <a href="qtsingleapplication.html">QtSingleApplication</a> class for non-GUI applications. <a href="#details">More...</a></p>
<pre> #include &lt;QtSingleCoreApplication&gt;</pre><p>Inherits <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html">QCoreApplication</a>.</p>
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<li><a href="qtsinglecoreapplication-members.html">List of all members, including inherited members</a></li>
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<h2>Public Functions</h2>
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<tr><td class="memItemLeft" align="right" valign="top"></td><td class="memItemRight" valign="bottom"><b><a href="qtsinglecoreapplication.html#QtSingleCoreApplication">QtSingleCoreApplication</a></b> ( int &amp; <i>argc</i>, char ** <i>argv</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"></td><td class="memItemRight" valign="bottom"><b><a href="qtsinglecoreapplication.html#QtSingleCoreApplication-2">QtSingleCoreApplication</a></b> ( const QString &amp; <i>appId</i>, int &amp; <i>argc</i>, char ** <i>argv</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><b><a href="qtsinglecoreapplication.html#id">id</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b><a href="qtsinglecoreapplication.html#isRunning">isRunning</a></b> ()</td></tr>
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<li><div bar="2" class="fn"></div>4 public functions inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#public-functions">QCoreApplication</a></li>
<li><div bar="2" class="fn"></div>29 public functions inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#public-functions">QObject</a></li>
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<h2>Public Slots</h2>
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<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b><a href="qtsinglecoreapplication.html#sendMessage">sendMessage</a></b> ( const QString &amp; <i>message</i>, int <i>timeout</i> = 5000 )</td></tr>
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<li><div bar="2" class="fn"></div>1 public slot inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#public-slots">QCoreApplication</a></li>
<li><div bar="2" class="fn"></div>1 public slot inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#public-slots">QObject</a></li>
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<h2>Signals</h2>
<table class="alignedsummary" border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qtsinglecoreapplication.html#messageReceived">messageReceived</a></b> ( const QString &amp; <i>message</i> )</td></tr>
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<ul>
<li><div bar="2" class="fn"></div>1 signal inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#signals">QCoreApplication</a></li>
<li><div bar="2" class="fn"></div>1 signal inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#signals">QObject</a></li>
</ul>
<h3>Additional Inherited Members</h3>
<ul>
<li><div class="fn"></div>4 properties inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#properties">QCoreApplication</a></li>
<li><div class="fn"></div>1 property inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#properties">QObject</a></li>
<li><div class="fn"></div>1 public type inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#public-variables">QObject</a></li>
<li><div class="fn"></div>38 static public members inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#static-public-members">QCoreApplication</a></li>
<li><div class="fn"></div>4 static public members inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#static-public-members">QObject</a></li>
<li><div class="fn"></div>1 protected function inherited from <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#protected-functions">QCoreApplication</a></li>
<li><div class="fn"></div>7 protected functions inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#protected-functions">QObject</a></li>
<li><div class="fn"></div>2 protected variables inherited from <a href="http://qt.nokia.com/doc/4.6/qobject.html#protected-variables">QObject</a></li>
</ul>
<a name="details"></a>
<hr />
<h2>Detailed Description</h2>
<p>A variant of the <a href="qtsingleapplication.html">QtSingleApplication</a> class for non-GUI applications.</p>
<p>This class is a variant of <a href="qtsingleapplication.html">QtSingleApplication</a> suited for use in console (non-GUI) applications. It is an extension of <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html">QCoreApplication</a> (instead of <a href="http://qt.nokia.com/doc/4.6/qapplication.html">QApplication</a>). It does not require the <a href="http://qt.nokia.com/doc/4.6/qtgui.html">QtGui</a> library.</p>
<p>The API and usage is identical to <a href="qtsingleapplication.html">QtSingleApplication</a>, except that functions relating to the &quot;activation window&quot; are not present, for obvious reasons. Please refer to the <a href="qtsingleapplication.html">QtSingleApplication</a> documentation for explanation of the usage.</p>
<p>A QtSingleCoreApplication instance can communicate to a <a href="qtsingleapplication.html">QtSingleApplication</a> instance if they share the same application id. Hence, this class can be used to create a light-weight command-line tool that sends commands to a GUI application.</p>
<p>See also <a href="qtsingleapplication.html">QtSingleApplication</a>.</p>
<hr />
<h2>Member Function Documentation</h2>
<h3 class="fn"><a name="QtSingleCoreApplication"></a>QtSingleCoreApplication::QtSingleCoreApplication ( int &amp; <i>argc</i>, char ** <i>argv</i> )</h3>
<p>Creates a <a href="qtsinglecoreapplication.html">QtSingleCoreApplication</a> object. The application identifier will be <a href="http://qt.nokia.com/doc/4.6/qcoreapplication.html#applicationFilePath">QCoreApplication::applicationFilePath</a>(). <i>argc</i> and <i>argv</i> are passed on to the QCoreAppliation constructor.</p>
<h3 class="fn"><a name="QtSingleCoreApplication-2"></a>QtSingleCoreApplication::QtSingleCoreApplication ( const <a href="http://qt.nokia.com/doc/4.6/qstring.html">QString</a> &amp; <i>appId</i>, int &amp; <i>argc</i>, char ** <i>argv</i> )</h3>
<p>Creates a <a href="qtsinglecoreapplication.html">QtSingleCoreApplication</a> object with the application identifier <i>appId</i>. <i>argc</i> and <i>argv</i> are passed on to the QCoreAppliation constructor.</p>
<h3 class="fn"><a name="id"></a><a href="http://qt.nokia.com/doc/4.6/qstring.html">QString</a> QtSingleCoreApplication::id () const</h3>
<p>Returns the application identifier. Two processes with the same identifier will be regarded as instances of the same application.</p>
<h3 class="fn"><a name="isRunning"></a>bool QtSingleCoreApplication::isRunning ()</h3>
<p>Returns true if another instance of this application is running; otherwise false.</p>
<p>This function does not find instances of this application that are being run by a different user (on Windows: that are running in another session).</p>
<p>See also <a href="qtsinglecoreapplication.html#sendMessage">sendMessage</a>().</p>
<h3 class="fn"><a name="messageReceived"></a>void QtSingleCoreApplication::messageReceived ( const <a href="http://qt.nokia.com/doc/4.6/qstring.html">QString</a> &amp; <i>message</i> )&nbsp;&nbsp;<tt> [signal]</tt></h3>
<p>This signal is emitted when the current instance receives a <i>message</i> from another instance of this application.</p>
<p>See also <a href="qtsinglecoreapplication.html#sendMessage">sendMessage</a>().</p>
<h3 class="fn"><a name="sendMessage"></a>bool QtSingleCoreApplication::sendMessage ( const <a href="http://qt.nokia.com/doc/4.6/qstring.html">QString</a> &amp; <i>message</i>, int <i>timeout</i> = 5000 )&nbsp;&nbsp;<tt> [slot]</tt></h3>
<p>Tries to send the text <i>message</i> to the currently running instance. The <a href="qtsinglecoreapplication.html">QtSingleCoreApplication</a> object in the running instance will emit the <a href="qtsinglecoreapplication.html#messageReceived">messageReceived</a>() signal when it receives the message.</p>
<p>This function returns true if the message has been sent to, and processed by, the current instance. If there is no instance currently running, or if the running instance fails to process the message within <i>timeout</i> milliseconds, this function return false.</p>
<p>See also <a href="qtsinglecoreapplication.html#isRunning">isRunning</a>() and <a href="qtsinglecoreapplication.html#messageReceived">messageReceived</a>().</p>
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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Solutions component.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\page index.html
\title Single Application
\section1 Description
The QtSingleApplication component provides support
for applications that can be only started once per user.
For some applications it is useful or even critical that they are started
only once by any user. Future attempts to start the application should
activate any already running instance, and possibly perform requested
actions, e.g. loading a file, in that instance.
The QtSingleApplication class provides an interface to detect a running
instance, and to send command strings to that instance.
For console (non-GUI) applications, the QtSingleCoreApplication variant is provided, which avoids dependency on QtGui.
\section1 Classes
\list
\i QtSingleApplication \i QtSingleCoreApplication\endlist
\section1 Examples
\list
\i \link qtsingleapplication-example-trivial.html A Trivial Example \endlink \i \link qtsingleapplication-example-loader.html Loading Documents \endlink \i \link qtsinglecoreapplication-example-console.html A Non-GUI Example \endlink \endlist
\section1 Tested platforms
\list
\i Qt 4.4, 4.5 / Windows XP / MSVC.NET 2005
\i Qt 4.4, 4.5 / Linux / gcc
\i Qt 4.4, 4.5 / MacOS X 10.5 / gcc
\endlist
*/

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TEMPLATE = app
CONFIG += console
SOURCES += main.cpp
include(../../src/qtsinglecoreapplication.pri)
QT -= gui

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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Solutions component.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*! \page qtsinglecoreapplication-example-console.html
\title A non-GUI example
This example shows how to use the single-application functionality
in a console application. It does not require the \c QtGui library
at all.
The only differences from the GUI application usage demonstrated
in the other examples are:
1) The \c.pro file should include \c qtsinglecoreapplication.pri
instead of \c qtsingleapplication.pri
2) The class name is \c QtSingleCoreApplication instead of \c
QtSingleApplication.
3) No calls are made regarding window activation, for obvious reasons.
console.pro:
\quotefile console/console.pro
main.cpp:
\quotefile console/main.cpp
*/

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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Solutions component.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qtsinglecoreapplication.h"
#include <QDebug>
void report(const QString& msg)
{
qDebug("[%i] %s", (int)QCoreApplication::applicationPid(), qPrintable(msg));
}
class MainClass : public QObject
{
Q_OBJECT
public:
MainClass()
: QObject()
{}
public slots:
void handleMessage(const QString& message)
{
report( "Message received: \"" + message + "\"");
}
};
int main(int argc, char **argv)
{
report("Starting up");
QtSingleCoreApplication app(argc, argv);
if (app.isRunning()) {
QString msg(QString("Hi master, I am %1.").arg(QCoreApplication::applicationPid()));
bool sentok = app.sendMessage(msg, 2000);
QString rep("Another instance is running, so I will exit.");
rep += sentok ? " Message sent ok." : " Message sending failed; the other instance may be frozen.";
report(rep);
return 0;
} else {
report("No other instance is running; so I will.");
MainClass mainObj;
QObject::connect(&app, SIGNAL(messageReceived(const QString&)),
&mainObj, SLOT(handleMessage(const QString&)));
return app.exec();
}
}
#include "main.moc"

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TEMPLATE = subdirs
SUBDIRS = trivial \
loader \
console

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