hkbirke@mit-amt (Hal Birkeland) (10/08/88)
Release: X11R2 System: 4.3 BSD UVaxII with Parallax running Xplx (ucode 7.xx) Routine: XSendEvent how do I use it... the following syntax seems to never succeed (status returned as zero and event never is generated.) XEvent ev; ev.type = Expose; ev.xexpose.display = dpy; ev.xexpose.window = window; ev.xexpose.x = 0; ev.xexpose.y = 0; ev.xexpose.width = 30; ev.xexpose.height = 30; ev.xexpose,count = 0; XSendEvent (dpy, window, False, ExposureMask, &ev); returns a 0 -- call fails. One other question -- is there a need for this much code duplication? I mean, I pass the display and window to the command as well as in the structure. Please correct my stupidity... it must be something obvious. -- hal hkbirke@media-lab.media.mit.edu ...!mit-amt!hkbirke THESE ARE MY OWN OPINIONS, USUALLY NOT THOSE OF MY SUPERIORS.
stergios@athsys.uucp (Stergios Marinopoulos) (10/12/88)
Do not forget to fill in the 'format' field in the XClientMessageEvent or else none of your data will be copied by the server. Use one of 8, 16, or 32 depending on your use of char, short, or int field respectively in XClientMessageEvent union member data. I do not believe this is documented in the O'Reilly manuals, and I am not sure about the Xlib manual (read my search was not exhaustive). When I noticed the problem I started digging in the X11r2 mit sun server and found what I was doing wrong. This may not solve your particular problem but it will be necessary inorder for correct usage OF XSendEvent. Stergios Marinopoulos