// RemoveWinEventListener - remove an event callback for a global listener
private static void RemoveWinEventListener(Tracker idx, Delegate eventCallback)
{
WinEventWrap eventWrapper = _winEventTrackers[(int)idx];
if (eventWrapper == null)
{
return;
}
bool fRemovedLastListener = eventWrapper.RemoveCallback(eventCallback);
if (fRemovedLastListener)
{
_callbackQueue.PostSyncWorkItem(new WinEventQueueItem(eventWrapper, WinEventQueueItem.StopListening));
_winEventTrackers[(int)idx] = null;
CheckStopCallbackQueueing();
}
}
