mcore-tools/src/xinfo.c

// original code grabbed from:
// http://surfingtroves.blogspot.de/2011/01/how-to-get-screen-resolution-in-linux-c.html

// -----------------------------------------------------------
// Purpose : simply retrieve current X windows information
// -----------------------------------------------------------
#define XLIB_ILLEGAL_ACCESS
#include <X11/Xlib.h>
#include <stdio.h>

int main()
{

 Display* pdsp = XOpenDisplay(NULL);
 if (! pdsp) {
   printf("No display found!\n");
   return 1;
 }
 Window wid = DefaultRootWindow(pdsp);

 Screen* pwnd = DefaultScreenOfDisplay(pdsp);
 int sid = DefaultScreen(pdsp);

 XWindowAttributes xwAttr;
 XGetWindowAttributes(pdsp,wid,&xwAttr);

/*
 printf(" name : %s\n vendor : %s\n", pdsp->display_name, pdsp->vendor);
 printf(" pos : (%d, %d), width = %d, height = %d \n",
   xwAttr.x, xwAttr.y, xwAttr.width, xwAttr.height);
*/

 printf("xorg_width=%d\n", xwAttr.width);
 printf("xorg_height=%d\n", xwAttr.height);

 XCloseDisplay( pdsp );

 return 0;
}

/* gcc -o $@ $< -lX11 */
/* set ts=4 sts=4 tw=100 sw=4 */
1	niro	2101	// original code grabbed from:
2	niro	2100	// http://surfingtroves.blogspot.de/2011/01/how-to-get-screen-resolution-in-linux-c.html
3
4			// -----------------------------------------------------------
5			// Purpose : simply retrieve current X windows information
6			// -----------------------------------------------------------
7			#define XLIB_ILLEGAL_ACCESS
8			#include <X11/Xlib.h>
9			#include <stdio.h>
10
11			int main()
12			{
13
14			Display* pdsp = XOpenDisplay(NULL);
15	niro	2101	if (! pdsp) {
16			printf("No display found!\n");
17			return 1;
18			}
19	niro	2100	Window wid = DefaultRootWindow(pdsp);
20
21			Screen* pwnd = DefaultScreenOfDisplay(pdsp);
22			int sid = DefaultScreen(pdsp);
23	niro	2101
24	niro	2100	XWindowAttributes xwAttr;
25			XGetWindowAttributes(pdsp,wid,&xwAttr);
26
27			/*
28			printf(" name : %s\n vendor : %s\n", pdsp->display_name, pdsp->vendor);
29			printf(" pos : (%d, %d), width = %d, height = %d \n",
30			xwAttr.x, xwAttr.y, xwAttr.width, xwAttr.height);
31			*/
32
33	niro	2101	printf("xorg_width=%d\n", xwAttr.width);
34	niro	2100	printf("xorg_height=%d\n", xwAttr.height);
35
36			XCloseDisplay( pdsp );
37	niro	2101
38			return 0;
39	niro	2100	}
40
41			/* gcc -o $@ $< -lX11 */
42			/* set ts=4 sts=4 tw=100 sw=4 */