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<HTML><HEAD><TITLE>Xlib Programming Manual: Selecting Events Using a Window or Event Mask</TITLE></HEAD><BODY><H1 ALIGN=center>11.4.3 Selecting Events Using a Window or Event Mask</H1>The functions discussed in this section let you select events by window or event types, allowing you to process events out of order.<P>To remove the next event that matches both a window and an event mask, use<B><A HREF="XWindowEvent.html">XWindowEvent()</A></B>.<P>To remove the next event that matches both a window and an event mask (if any),use<B><A HREF="XCheckWindowEvent.html">XCheckWindowEvent()</A></B>.<P>To remove the next event that matches an event mask, use<B><A HREF="XMaskEvent.html">XMaskEvent()</A></B>.<P>To return and remove the next event that matches an event mask (if any), use<B><A HREF="XCheckMaskEvent.html">XCheckMaskEvent()</A></B>.<P>To return and remove the next event in the queue that matches an event type, use<B><A HREF="XCheckTypedEvent.html">XCheckTypedEvent()</A></B>.<P>To return and remove the next event in the queue that matches an event type and a window, use<B><A HREF="XCheckTypedWindowEvent.html">XCheckTypedWindowEvent()</A></B>.<H5 ALIGN=right><I>Next: <A HREF="../putting-back.html">Putting an Event Back into the Queue</A></I></H5><HR><ADDRESS><A HREF="http://tronche.com/">Christophe Tronche</A>, <A HREF="mailto:ch.tronche@computer.org">ch.tronche@computer.org</A></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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