1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
| | /* This header file is provided by the libxss-dev package on Debian,
* by the libXss-devel rpm on openSUSE, and the libXScrnSaver-devel
* rpm on Fedora.
*/
#include <X11/extensions/scrnsaver.h>
#include <stdio.h>
/* Based on code from
* http://coderrr.wordpress.com/2008/04/20/getting-idle-time-in-unix/
*
* compile with 'gcc -l Xss x11idle.c -o x11idle' and copy x11idle into your
* path
*/
int main() {
XScreenSaverInfo *info = XScreenSaverAllocInfo();
//open the display specified by the DISPLAY environment variable
Display *display = XOpenDisplay(0);
//display could be null if there is no X server running
if (info == NULL || display == NULL) {
return -1;
}
//X11 is running, try to retrieve info
if (XScreenSaverQueryInfo(display, DefaultRootWindow(display), info) == 0) {
return -1;
}
//info was retrieved successfully, print idle time
printf("%lu\n", info->idle);
return 0;
}
|