[download]

local/src/dwm/transient.c

   1 /* cc transient.c -o transient -lX11 */
   2 
   3 #include <stdlib.h>
   4 #include <unistd.h>
   5 #include <X11/Xlib.h>
   6 #include <X11/Xutil.h>
   7 
   8 int main(void) {
   9 	Display *d;
  10 	Window r, f, t = None;
  11 	XSizeHints h;
  12 	XEvent e;
  13 
  14 	d = XOpenDisplay(NULL);
  15 	if (!d)
  16 		exit(1);
  17 	r = DefaultRootWindow(d);
  18 
  19 	f = XCreateSimpleWindow(d, r, 100, 100, 400, 400, 0, 0, 0);
  20 	h.min_width = h.max_width = h.min_height = h.max_height = 400;
  21 	h.flags = PMinSize | PMaxSize;
  22 	XSetWMNormalHints(d, f, &h);
  23 	XStoreName(d, f, "floating");
  24 	XMapWindow(d, f);
  25 
  26 	XSelectInput(d, f, ExposureMask);
  27 	while (1) {
  28 		XNextEvent(d, &e);
  29 
  30 		if (t == None) {
  31 			sleep(5);
  32 			t = XCreateSimpleWindow(d, r, 50, 50, 100, 100, 0, 0, 0);
  33 			XSetTransientForHint(d, t, f);
  34 			XStoreName(d, t, "transient");
  35 			XMapWindow(d, t);
  36 			XSelectInput(d, t, ExposureMask);
  37 		}
  38 	}
  39 
  40 	XCloseDisplay(d);
  41 	exit(0);
  42 }