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<HTML><HEAD><TITLE>Xlib Programming Manual: Extensions: XESetEventToWire</TITLE></HEAD><BODY><H1 ALIGN=center>XESetEventToWire</H1><H2>Syntax</H2><!.IN "XESetEventToWire" "" "@DEF@"><CODE><PRE><B><A HREF="../../introduction/errors.html#Status">Status</A></B> (*XESetEventToWire(<B>display</B>, <B>event_number</B>, <B>proc</B>))() <A HREF="../../display/opening.html#Display">Display</A> *<B>display</B>; int <B>event_number</B>; int (*<B>proc</B>)();</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>display</B><TD> Specifies the connection to the X server.<TR><TD> <B>event_number</B><TD> Specifies the event code.<TR><TD> <B>proc</B><TD> Specifies the procedure to call when converting an event.</TABLE><H2>Description</H2>The<B>XESetEventToWire()</B>function defines a procedure to be called when an eventneeds to be converted from host format(<A HREF="../../events/structures.html#XEvent">XEvent</A>) to wire format(<A HREF="hooks-into-the-library.html#xEvent">xEvent</A>)form. The event number defines which protocol event number to install aconversion procedure for.<B>XESetEventToWire()</B>returns any previously defined procedure.It returns zero if the conversion fails or nonzero otherwise.<P ALIGN=center><B>Note</B><BLOCKQUOTE>You can replace a core event conversion function with oneof your own, although this is not encouraged. It would, however, allow you to intercept a core event and modify it before being sent to another client.</BLOCKQUOTE>When Xlib needs to convert an event from host format to wire format, your procedure is called with these arguments:<P><PRE><CODE>(*<B>proc</B>)(<B>display</B>, <B>re</B>, <B>event</B>) <A HREF="../../display/opening.html#Display">Display</A> *<B>display</B>; <A HREF="../../events/structures.html#XEvent">XEvent</A> *<B>re</B>; <A HREF="hooks-into-the-library.html#xEvent">xEvent</A> *<B>event</B>;</PRE></CODE><P>The re argument is a pointer to the host format event,and the event argument is a pointer to where the 32-byte wire event structure should be stored.You should fill in the type with the type from the <A HREF="../../events/structures.html#XEvent">XEvent</A> structure.All other members then should be copied from the host format to the <A HREF="hooks-into-the-library.html#xEvent">xEvent</A> structure.<H2>See also</H2><B><A HREF="XESetBeforeFlush.html">XESetBeforeFlush()</A></B>,<B><A HREF="XESetCloseDisplay.html">XESetCloseDisplay()</A></B>,<B><A HREF="XESetCopyGC.html">XESetCopyGC()</A></B>,<B><A HREF="XESetCreateFont.html">XESetCreateFont()</A></B>,<B><A HREF="XESetCreateGC.html">XESetCreateGC()</A></B>,<B><A HREF="XESetError.html">XESetError()</A></B>,<B><A HREF="XESetErrorString.html">XESetErrorString()</A></B>,<B><A HREF="XESetFlushGC.html">XESetFlushGC()</A></B>,<B><A HREF="XESetFreeFont.html">XESetFreeFont()</A></B>,<B><A HREF="XESetFreeGC.html">XESetFreeGC()</A></B>,<B><A HREF="XESetPrintErrorValues.html">XESetPrintErrorValues()</A></B>,<B><A HREF="XESetWireToError.html">XESetWireToError()</A></B>,<B><A HREF="XESetWireToEvent.html">XESetWireToEvent()</A></B>,<B><A HREF="_XSetLastRequestRead.html">_XSetLastRequestRead()</A></B>,"<A HREF="hooks-into-the-library.html">Hooks into the Library</A>"<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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