[devel] Re: RFC: test-aboutdialog (GUI)

[Alexey Tourbin <at@altlinux.ru>]

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On Sun, Jun 19, 2005 at 02:58:13AM +0400, Alexey Tourbin wrote:
> On Sun, Jun 19, 2005 at 02:10:26AM +0400, Alexey Tourbin wrote:
> > On Sat, Jun 18, 2005 at 08:36:36PM +0400, Alexey Tourbin wrote:
> > > Под Xvfb пока не работает, не знаю точно почему. :(
> > 
> > Под Xvfb не работает XKeysymToKeycode() -- возвращает 0.
> > Это в процессе запроса на нажатие Alt (keysym=65513).
> 
> $ cat xtest.c
> #include <stdio.h>
> #include <X11/Xlib.h>
> #include <X11/keysym.h>
> int main()
> {
>         Display *display = XOpenDisplay(NULL);
>         if (!display)
>                 return 1;
>         KeyCode kc = XKeysymToKeycode(display, XK_Alt_L);
>         printf("keycode=%d\n", kc);
>         return 0;
> }
> $ gcc -I/usr/X11R6/include -L/usr/X11R6/lib xtest.c -lX11
> $ DISPLAY=:0 ./a.out
> keycode=64
> $ xvfb-run -a ./a.out
> xauth:  creating new authority file /home/at/.Xauthority
> keycode=0
> $
> 
> У кого-нибудь воспроизводится?  Any ideas?

Проблема решилась так:

--- X11-GUITest-0.20/GUITest.xs-	2004-01-16 23:41:42 +0000
+++ X11-GUITest-0.20/GUITest.xs	2005-07-13 01:35:14 +0000
@@ -213,6 +213,15 @@
 	return( GetKeySym(key, sym) );
 }
 
+/* Xvfb lacks XK_Alt_L; fall back to XK_Meta_L */
+#define XKeysymToKeycode(display, sym)			\
+({	Display *d = (display); KeySym s = (sym);	\
+ 	KeyCode kc = (XKeysymToKeycode)(d, s);		\
+ 	if (kc == 0 && s == XK_Alt_L)			\
+ 		kc = (XKeysymToKeycode)(d, XK_Meta_L);	\
+ 	kc;						\
+})
+
 /* Function: PressKeyImp
  * Description: Presses the key for the specified keysym.  Lower-level
  * 				implementation.

> NB: НЕ ЗАПУСКАЙТЕ xfvb-run в домашнем каталоге.

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