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<HTML><HEAD><TITLE>Xlib Programming Manual: Window Attributes: Event Mask and Do Not Propagate Mask Attributes</TITLE></HEAD><BODY><H1 ALIGN=center>3.2.7 Event Mask and Do Not Propagate Mask Attributes</H1>The event mask defines which events the client is interested in for this <B><A HREF="../create.html#InputClass">InputOutput</A></B>or<B><A HREF="../create.html#InputClass">InputOnly</A></B>window (or, for some event types, inferiors of this window).The event mask is the bitwise inclusive OR of zero or more of the valid event mask bits.You can specify that no maskable events are reported by setting <B><A HREF="../../events/mask.html#NoEventMask">NoEventMask</A></B>(default).<P>The do-not-propagate-mask attributedefines which events should not be propagated to ancestor windows when no client has the event type selected in this <B><A HREF="../create.html#InputClass">InputOutput</A></B>or<B><A HREF="../create.html#InputClass">InputOnly</A></B>window.The do-not-propagate-mask is the bitwise inclusive OR of zero or moreof the following masks:<B>KeyPress</B>, <B>KeyRelease</B>,<B>ButtonPress</B>, <B>ButtonRelease</B>,<B>PointerMotion</B>,<B>Button1Motion</B>, <B>Button2Motion</B>, <B>Button3Motion</B>,<B>Button4Motion</B>, <B>Button5Motion</B>, and<B>ButtonMotion</B>.You can specify that all events are propagated by setting <B><A HREF="../../events/mask.html#NoEventMask">NoEventMask</A></B>(default).<H5 ALIGN=right><I>Next: <A HREF="override-redirect.html">Override Redirect Flag</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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