Re: XGrabKey problems

[Steve.Brown@xxxxxxxxxx]

Jay
Initial tests look promising, will test extensively over the next few days.
Thanks,
Steve.

"Jay Sorg" <j@american-data.com> 07/04/2002 02:53

To:        rdesktop@rdesktop.org         cc:                 Subject:        Re: XGrabKey problems

<color><param>0100,0100,0100</param>patch</color>19-8-5 XGrabKey problems


It looks like gnome just won't let you grab function keys like F1 or 
F2.  The function below only grabs ALT and CTL keys.  I tested 
this with KDE and Gnome, it works good.  Just replace your 
ui_grab_keyboard function with whats below.

Does anyone know why XGrabKey works this way?  It looks like 
you never get a BadAccess return code, the app just halts.

Well anyway, this is a testing fix.  If you want to test it out and let 
me know the results, great.  Check the ALT-TAB and CTL-ESC 
key combos, actually give the whole keyboard a test run.

I'm thinking XGrabKeyboard might be better(more reliable).  It 
seems like most apps either grabkeyboard or don't grab at all.

Since we're using scancodes here, non-pc keyboards won't grab, 
allthough we can check for that.


Thanks

Jay


<color><param>0100,0100,0100</param>void

ui_grab_keyboard()

{

  int i;

  int grab_keys[4] = {0x25, 0x40, 0x6d, 0x71}; /* alt and ctl keys */

  for (i = 0; i << 4; i++)

    XGrabKey(display, grab_keys[i], AnyModifier, wnd, True, 
GrabModeAsync, GrabModeAsync);

}



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