Attachment 17570 Details for Bug 16639 – XRandR.c test application

XRandR.c test application

XRandR.c (text/plain), 1.26 KB, created by Kai-Uwe Behrmann on 2008-07-08 04:42:19 UTC

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Creator: Kai-Uwe Behrmann

Created: 2008-07-08 04:42:19 UTC

Size: 1.26 KB

patch

obsolete

>/* cc -Wall -g XRandR.c -o XRandR -lX11 `pkg-config --libs xrandr` */
>#include <X11/Xlib.h>
>#include <X11/extensions/Xrandr.h>
>#include <stdio.h>
>
>int
>main(void)
>{
>  Display *display;
>  int screen;
>  Window root;
>  
>  int x, y, i, j;
>  unsigned int width, height, border_width, depth;
>
>  if( (display = XOpenDisplay(":0.0")) == 0 ) {
>    fprintf( stderr, "Could not open X display\n" );
>    return 1;
>  }
>
>  screen = DefaultScreen( display );
>
>  XGetGeometry( display, RootWindow( display, screen ), &root,
>                &x, &y, &width, &height, &border_width, &depth );
>
>  fprintf( stdout, "root = %d x = %d y = %d width = %d height = %d "
>                   "border_width = %d depth = %d\n", (int)root,
>                x, y, width, height, border_width, depth );
>
>  XRRScreenResources * res = XRRGetScreenResources(display, root);
>  for(i = 0; i < res->noutput; ++i)
>  {
>    XRROutputInfo * output = XRRGetOutputInfo( display, res, res->outputs[i] );
>    for ( j = 0; j < output->ncrtc; ++j)
>    {
>      XRRCrtcGamma * gamma = XRRGetCrtcGamma( display, output->crtcs[j] );
>
>      fprintf( stdout, "output %d: crtc %d: gamma size: %d\n", i, j, gamma->size);
>
>      XRRFreeGamma( gamma );
>    }
>    XRRFreeOutputInfo( output );
>  }
>
>  XRRFreeScreenResources(res); res = 0;
>
>  return 0;
>}

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