python-xlib/examples/xfixes-cursor-notify.py

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Python
Executable File

#!/usr/bin/python3
#
# examples/xfixes-cursor-notify.py -- demonstrate the XFIXES extension
# CursorNotify event.
#
# Copyright (C) 2022
# Dan Isla <dan.isla@gmail.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public License
# as published by the Free Software Foundation; either version 2.1
# of the License, or (at your option) any later version.
#
# This library 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc.,
# 59 Temple Place,
# Suite 330,
# Boston, MA 02111-1307 USA
# Python 2/3 compatibility.
from __future__ import print_function
import sys
from Xlib.display import Display
from Xlib.ext import xfixes
def main():
display = Display()
if not display.has_extension('XFIXES'):
if display.query_extension('XFIXES') is None:
print('XFIXES extension not supported')
return 1
xfixes_version = display.xfixes_query_version()
print('Found XFIXES version {}.{}'.format(
xfixes_version.major_version,
xfixes_version.minor_version
))
screen = display.screen()
display.xfixes_select_cursor_input(screen.root, xfixes.XFixesDisplayCursorNotifyMask)
cursor_cache = {}
while True:
e = display.next_event()
print(e)
if (e.type, e.sub_code) == display.extension_event.DisplayCursorNotify:
print("DisplayCursorNotify: cursor_serial={}".format(e.cursor_serial))
image = display.xfixes_get_cursor_image(screen.root)
cached = False
if cursor_cache.get(image.cursor_serial):
cached = True
else:
cursor_cache[image.cursor_serial] = image.cursor_image
print("Cursor position={},{}, size={}x{}, xyhot={},{}, cursor_serial={}, cached={}".format(
image.x, image.y, image.width,image.height, image.xhot, image.yhot, image.cursor_serial, cached
))
if __name__ == "__main__":
sys.exit(main())