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From: vp01@bunny.gte.com (Vincent Phuah)
Newsgroups: comp.windows.x
Subject: XSendEvent question
Message-ID: <1991May8.113157@bunny.gte.com>
Date: 8 May 91 15:31:57 GMT
Sender: news@gte.com
Reply-To: vphuah@gte.com
Followup-To: vp01@gte.com
Organization: GTE Laboratories, Inc.
Lines: 107

Keywords:XSendEvent, PointerWindow


Hi there,

Wonder if someone could help me. I'm trying to simulate
button press/release events using XSendEvent with the
PointerWindow option, but having a lot of trouble getting
it to work. Would appreciate 
if you could take a look at my code and tell me what I'm doing
wrong. Instead of using the PointerWindow option,
I tried using  the  window id of a command button
in the event structure and the XSendEvent routine,
but that didn't work either.

Thanks for your help in advance.

-----
/*     
 *
 *      Code to send an button press/release event to
 *      a window(likely a command button window)
        specified by the pointer.
 */


#include  "xbook.h"

int SendButtonPress();

SendButtonPress( display, window, state)

Display *display;
Window  window;
int     state; /* unused */

{       
        XButtonEvent       event;
        int                status;

        event.type        = ButtonPress;
        event.display     = display;
        event.root        = RootWindow( display, DefaultScreen( display ));
        event.same_screen = True;
        event.x           = 0;
        event.y           = 0;   
        event.x_root      = 0;   
        event.y_root      = 0;   
        event.subwindow   = (Window)None;
        event.time         = CurrentTime;
        event.state       = 0x00; 


       status = XSendEvent( display, PointerWindow, False ,
ButtonPressMask, &event );



        sleep(1);
        if ( status != 0 )
                {
                event.type     = ButtonRelease;
                event.state    = Button1Mask; 
                event.time     = CurrentTime;

                status = XSendEvent( display, PointerWindow, False, 
                                ButtonReleaseMask, &event );
                }

        XFlush(display);
        return( status );


}       

main(argc,argv)
int argc;
char **argv;

{
   Display *display;
   
   if (argc != 2)
   {
      printf("Must specify display name.\n");
      exit(0);
   }

   if ((display = XOpenDisplay(argv[1])) == NULL)
   {
      printf("Cannot  open display\n");
      exit(-1);
   }
   if (SendButtonPress(display, PointerWindow, 0x0100) > 0)
        printf("Send Button Event ok\n");
   else printf("SentEvent Not OK\n");

   exit(0);
}      


--

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*    Vincent Phuah                                       *
*    GTE Laboratories              Email: vphuah@gte.com *
*    40 Sylvan Road                Tel:   (617) 466-4130 *
*    Waltham, MA 02254             FAX:   (617) 890-9320 *
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