import win32event
import pythoncom
TIMEOUT = 200 # ms
StopEvent = win32event.CreateEvent(None, 0, 0, None)
OtherEvent = win32event.CreateEvent(None, 0, 0, None)
class myCoolApp:
def OnQuit(self):
win32event.SetEvent(StopEvent) # exit msg pump
def _MessagePump():
while 1:
rc = win32event.MsgWaitForMultipleObjects(
(StopEvent,OtherEvent),
0, # wait for all = false
TIMEOUT, # (or win32event.INFINITE)
win32event.QS_ALLEVENTS) # type of input
# You can call a function here if it doesn't take too long.
# It will get executed *at least* every 200ms -- possibly
# a lot more, depending on the number of windows messages received.
if rc == win32event.WAIT_OBJECT_0:
# Our first event listed was triggered.
# Someone wants us to exit.
break
elif rc == win32event.WAIT_OBJECT_0+1:
# Our second event "OtherEvent" listed was set.
# This is from some other component -
# wait on as many events as you need
elif rc == win32event.WAIT_OBJECT_0+2:
# A windows message is waiting - take care of it.
# (Don't ask me why a WAIT_OBJECT_MSG isn't defined < WAIT_OBJECT_0)
# Note: this must be done for COM and other windowsy
# things to work.
if pythoncom.PumpWaitingMessages():
break # wm_quit
elif rc == win32event.WAIT_TIMEOUT:
# Our timeout has elapsed.
# Do some work here (e.g, poll something can you can't thread)
# or just feel good to be alive.
# Good place to call watchdog(). (Editor's note: See my "thread lifetime" recepie.)
pass
else:
raise RuntimeError( "unexpected win32wait return value")
