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/*
* utils_x11.h - X11 utilities
*
* vdpau-video (C) 2009-2011 Splitted-Desktop Systems
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "sysdeps.h"
#include <X11/Xutil.h>
#include "utils_x11.h"
#include "utils.h"
// X error trap
static int x11_error_code = 0;
static int (*old_error_handler)(Display *, XErrorEvent *);
static int error_handler(Display *dpy, XErrorEvent *error)
{
x11_error_code = error->error_code;
return 0;
}
void x11_trap_errors(void)
{
x11_error_code = 0;
old_error_handler = XSetErrorHandler(error_handler);
}
int x11_untrap_errors(void)
{
XSetErrorHandler(old_error_handler);
return x11_error_code;
}
int
x11_get_geometry(
Display *dpy,
Drawable drawable,
int *px,
int *py,
unsigned int *pwidth,
unsigned int *pheight
)
{
Window rootwin;
int x, y;
unsigned int width, height, border_width, depth;
x11_trap_errors();
XGetGeometry(
dpy,
drawable,
&rootwin,
&x, &y, &width, &height,
&border_width,
&depth
);
if (x11_untrap_errors())
return 0;
if (px) *px = x;
if (py) *py = y;
if (pwidth) *pwidth = width;
if (pheight) *pheight = height;
return 1;
}
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