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2b3bbf3618
Fix a -Wimplicit-int compiler warning, and make it more obvious how to obtain scrnsaver.h on three of the most popular Linux distros. Signed-off-by: Adam Spiers <orgmode@adamspiers.org>
34 lines
951 B
C
34 lines
951 B
C
/* This header file is provided by the libxss-dev package on Debian,
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* by the libXss-devel rpm on openSUSE, and the libXScrnSaver-devel
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* rpm on Fedora.
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*/
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#include <X11/extensions/scrnsaver.h>
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#include <stdio.h>
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/* Based on code from
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* http://coderrr.wordpress.com/2008/04/20/getting-idle-time-in-unix/
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*
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* compile with 'gcc -l Xss x11idle.c -o x11idle' and copy x11idle into your
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* path
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*/
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int main() {
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XScreenSaverInfo *info = XScreenSaverAllocInfo();
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//open the display specified by the DISPLAY environment variable
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Display *display = XOpenDisplay(0);
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//display could be null if there is no X server running
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if (info == NULL || display == NULL) {
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return -1;
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}
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//X11 is running, try to retrieve info
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if (XScreenSaverQueryInfo(display, DefaultRootWindow(display), info) == 0) {
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return -1;
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}
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//info was retrieved successfully, print idle time
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printf("%lu\n", info->idle);
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return 0;
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}
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