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eventthread.py
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executable file
·63 lines (49 loc) · 1.83 KB
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#!/usr/bin/env python
#
# examples/eventthread.py -- Tests multithreaded event handling
#
# Copyright (C) 2010-2011 Outpost Embedded, LLC
# Forest Bond <[email protected]>
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import sys, time
from threading import Thread
from Xlib import X, Xatom, threaded
from Xlib.display import Display
class EventThread(Thread):
display = None
_stop = None
def __init__(self, display):
super(EventThread, self).__init__()
self.display = display
self.daemon = True
def run(self):
while True:
event = self.display.next_event()
print 'event: %r' % event
def main(argv):
display = Display()
thread = EventThread(display)
thread.start()
time.sleep(1)
screen = display.screen()
# The get_property call should not deadlock, despite the blocking next_event
# call in the thread.
atom = display.intern_atom('_XROOTPMAP_ID', True)
response = screen.root.get_property(atom, Xatom.PIXMAP, 0, 1)
print 'get_property response: %r' % response
display.close()
if __name__ == '__main__':
sys.exit(main(sys.argv))