Attachment 30383 Details for Bug 24520 – _XSend()/_XReply() example, that describes the problem.

_XSend()/_XReply() example, that describes the problem.

get_version.c (text/plain), 1.41 KB, created by Alexey Smirnov on 2009-10-14 04:05:00 UTC

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Creator: Alexey Smirnov

Created: 2009-10-14 04:05:00 UTC

Size: 1.41 KB

patch

obsolete

>//******************************************************************************
>// Copyright (c) 2009 Alexey Smirnov. All rights reserved.
>//******************************************************************************
>#define NEED_DBE_PROTOCOL
>
>#include <stdlib.h>
>#include <stdio.h>
>#include <X11/Xlibint.h>
>#include <X11/Xlib.h>
>#include <X11/extensions/Xdbeproto.h>
>int main () {
>//Vars
>Display                       *FPDisplay;
>int                           FMajorOpcode;
>int                           F1stEvent;
>int                           F1stError;
>xDbeGetVersionReq             FPReq;
>xDbeGetVersionReply           FReply;
>
>//Opening the Display
>FPDisplay = XOpenDisplay (0);
>if (FPDisplay) {
>  if (XQueryExtension(FPDisplay,"DOUBLE-BUFFER",&FMajorOpcode,&F1stEvent,&F1stError)) {
>//Printing XQueryExtension results
>   printf ("DOUBLE-BUFFER OpCode is: %lu, 1stEvent is: %lu, 1stError is: %lu",FMajorOpcode,F1stEvent,F1stError);
>
>   FPReq.reqType     = FMajorOpcode;
>   FPReq.dbeReqType  = X_DbeGetVersion;
>   FPReq.length      = sz_xDbeGetVersionReq >> 2;
>   FPReq.majorVersion= 0;
>   FPReq.minorVersion= 0;
>//Trying to do _XSend()/_XReply()
>   _XSend (FPDisplay,&FPReq,sz_xDbeGetVersionReq);
>   if (_XReply (FPDisplay,&FReply,0,1)) {
>//Printing DOUBLE-BUFFER version
>    printf ("DOUBLE-BUFFER version is: %lu.%lu",FReply.majorVersion,FReply.minorVersion);
>   }
>  }
>//Closing the Display
>XCloseDisplay(FPDisplay);
>}
>return 0;
>}

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