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gryf-overlay/x11-misc/wmres/files/wmres.c

66 lines
2.1 KiB
C

/*
* WMRES -- A display resolution changer for the Window Maker menu
* Thrown together by Sam Brauer (sam@webslingerZ.com) 01-APR-1999
* Set this up as an external menu whose definition is read from a pipe.
* I ripped the vidmode code from Ian Moore's gtkuickres program.
* He in turn ripped it from Adam Kopacz's xvidmode.
* Thanks guys!!!
*
* Modified by Laurent Julliard <laurent AT moldus DOT org> - -
* - 2002-09-12 Also display the vertical Frequency next to the Video
* mode. This is very useful when one have the same resolution with
* different refresh rate to drive either a monitor or an external
* video projector (useful for laptop users like me :-)
*
* Compilation instructions:
* gcc -o wmres wmres.c -L/usr/X11R6/lib -lXxf86vm -lXmu -lX11
* or maybe
* gcc -o wmres wmres.c -L/usr/X11/lib -lXxf86vm -lXmu -lX11
* It depends on your system/distribution where the X libraries are located.
*/
#include <X11/Xlib.h>
#include <X11/extensions/xf86dga.h>
#include <X11/extensions/xf86vmode.h>
#include <stdio.h>
int main (int argc, char *argv[])
{
Display *dpy;
XF86VidModeModeInfo **vm_modelines;
int vm_count;
int i;
unsigned int width, height, dotclock;
dpy=XOpenDisplay("");
XF86VidModeGetAllModeLines(dpy,XDefaultScreen(dpy),&vm_count,&vm_modelines);
if(!(vm_count)) {
fprintf(stderr,"error: no video modes found\n");
exit(1);
}
if(argc > 3) {
width = atoi(argv[1]);
height = atoi(argv[2]);
dotclock = atoi(argv[3]);
for(i=0; i < vm_count; i++) {
if(vm_modelines[i]->hdisplay==width && vm_modelines[i]->vdisplay==height && vm_modelines[i]->dotclock==dotclock) {
XF86VidModeSwitchToMode(dpy,XDefaultScreen(dpy),vm_modelines[i]);
XFlush(dpy);
return 0;
}
}
}
printf("\"Resolutions\" MENU\n");
for(i=0; i < vm_count; i++) {
unsigned int vfreq = (vm_modelines[i]->dotclock*1000)/(vm_modelines[i]->htotal*vm_modelines[i]->vtotal);
printf("\"%dx%d %dHz\" EXEC %s %d %d %d\n",vm_modelines[i]->hdisplay,vm_modelines[i]->vdisplay, vfreq, argv[0], vm_modelines[i]->hdisplay, vm_modelines[i]->vdisplay, vm_modelines[i]->dotclock);
}
printf("\"Resolutions\" END\n");
return 0;
}