NAME
XCheckMaskEvent − remove the next event that matches mask; don’t wait.
Synopsis
Bool XCheckMaskEvent(display, event_mask, event_return)
Display *display;
long event_mask;
XEvent *event_return;
Arguments
displaySpecifies a connection to an X server; returned from XOpenDisplay().
event_mask
Specifies the event types to be returned. See list under XSelectInput().
event_return
Returns a copy of the matched event’s XEvent structure.
Description
XCheckMaskEvent() removes the next event in the queue that matches the passed mask. The event is copied into an XEvent supplied by the caller and XCheckMaskEvent() returns True. Other events earlier in the queue are not discarded. If no such event has been queued, XCheckMaskEvent() flushes the request buffer and immediately returns False, without waiting. For more information, see Volume One, Chapter 8, Events.
See Also
QLength(), XAllowEvents(), XCheckIfEvent(), XCheckTypedEvent(), XCheckTypedWindowEvent(), XCheckWindowEvent(), XEventsQueued(), XGetInputFocus(), XGetMotionEvents(), XIfEvent(), XMaskEvent(), XNextEvent(), XPeekEvent(), XPeekIfEvent(), XPending(), XPutBackEvent(), XSelectInput(), XSendEvent(), XSetInputFocus(), XSynchronize(), XWindowEvent.
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