76 lines
2.0 KiB
Python
Executable File
76 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# examples/eventthread.py -- Tests multithreaded event handling
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#
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# Copyright (C) 2010-2011 Outpost Embedded, LLC
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# Forest Bond <forest.bond@rapidrollout.com>
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public License
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# as published by the Free Software Foundation; either version 2.1
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# of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc.,
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# 59 Temple Place,
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# Suite 330,
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# Boston, MA 02111-1307 USA
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# Python 2/3 compatibility.
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from __future__ import print_function
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import sys
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import os
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# Change path so we find Xlib
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sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
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import time
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from threading import Thread
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from Xlib import Xatom, threaded
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from Xlib.display import Display
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class EventThread(Thread):
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display = None
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_stop = None
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def __init__(self, display):
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super(EventThread, self).__init__()
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self.display = display
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self.daemon = True
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def run(self):
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while True:
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event = self.display.next_event()
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print('event: %r' % event)
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def main(argv):
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display = Display()
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thread = EventThread(display)
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thread.start()
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time.sleep(1)
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screen = display.screen()
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# The get_property call should not deadlock, despite the blocking next_event
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# call in the thread.
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atom = display.intern_atom('_XROOTPMAP_ID', True)
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response = screen.root.get_property(atom, Xatom.PIXMAP, 0, 1)
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print('get_property response: %r' % response)
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display.close()
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if __name__ == '__main__':
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sys.exit(main(sys.argv))
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