tests/fullscreen.c

   1 #include <stdio.h>
   2 #include <unistd.h>
   3 #include <X11/Xlib.h>
   4
   5 int main () {
   6   Display   *display;
   7   Window     win;
   8   XEvent     report;
   9   Atom       _net_fs, _net_state;
  10   XEvent     msg;
  11   int        x=10,y=10,h=100,w=400;
  12
  13   display = XOpenDisplay(NULL);
  14
  15   if (display == NULL) {
  16     fprintf(stderr, "couldn't connect to X server :0\n");
  17     return 0;
  18   }
  19
  20   _net_state = XInternAtom(display, "_NET_WM_STATE", False);
  21   _net_fs = XInternAtom(display, "_NET_WM_STATE_FULLSCREEN", False);
  22
  23   win = XCreateWindow(display, RootWindow(display, 0),
  24                       x, y, w, h, 10, CopyFromParent, CopyFromParent,
  25                       CopyFromParent, 0, NULL);
  26
  27   XSetWindowBackground(display,win,WhitePixel(display,0));
  28
  29   XMapWindow(display, win);
  30   XFlush(display);
  31   sleep(2);
  32
  33   msg.xclient.type = ClientMessage;
  34   msg.xclient.message_type = _net_state;
  35   msg.xclient.display = display;
  36   msg.xclient.window = win;
  37   msg.xclient.format = 32;
  38   msg.xclient.data.l[0] = 2; // toggle
  39   msg.xclient.data.l[1] = _net_fs;
  40   msg.xclient.data.l[2] = 0l;
  41   msg.xclient.data.l[3] = 0l;
  42   msg.xclient.data.l[4] = 0l;
  43   XSendEvent(display, RootWindow(display, 0), False,
  44              StructureNotifyMask | SubstructureNotifyMask, &msg);
  45   XFlush(display);
  46   sleep(2);
  47
  48   msg.xclient.type = ClientMessage;
  49   msg.xclient.message_type = _net_state;
  50   msg.xclient.display = display;
  51   msg.xclient.window = win;
  52   msg.xclient.format = 32;
  53   msg.xclient.data.l[0] = 2; // toggle
  54   msg.xclient.data.l[1] = _net_fs;
  55   msg.xclient.data.l[2] = 0l;
  56   msg.xclient.data.l[3] = 0l;
  57   msg.xclient.data.l[4] = 0l;
  58   XSendEvent(display, RootWindow(display, 0), False,
  59              StructureNotifyMask | SubstructureNotifyMask, &msg);
  60
  61   XSelectInput(display, win, ExposureMask | StructureNotifyMask);
  62
  63   while (1) {
  64     XNextEvent(display, &report);
  65
  66     switch (report.type) {
  67     case Expose:
  68       printf("exposed\n");
  69       break;
  70     case ConfigureNotify:
  71       x = report.xconfigure.x;
  72       y = report.xconfigure.y;
  73       w = report.xconfigure.width;
  74       h = report.xconfigure.height;
  75       printf("confignotify %i,%i-%ix%i\n",x,y,w,h);
  76       break;
  77     }
  78
  79   }
  80
  81   return 1;
  82 }