+ else {
+ DNPRINTF(SWM_D_MISC, "set_child_transient: parent doesn't exist"
+ " for %lu trans %lu\n", win->id, win->transient);
+
+ if (win->hints == NULL) {
+ fprintf(stderr, "no hints for %lu\n", win->id);
+ return;
+ }
+
+ r = root_to_region(win->wa.root);
+ ws = r->ws;
+ /* parent doen't exist in our window list */
+ TAILQ_FOREACH(w, &ws->winlist, entry) {
+ if (wmh)
+ XFree(wmh);
+
+ if ((wmh = XGetWMHints(display, w->id)) == NULL) {
+ fprintf(stderr, "can't get hints for %lu\n",
+ w->id);
+ continue;
+ }
+
+ if (win->hints->window_group != wmh->window_group)
+ continue;
+
+ w->child_trans = win;
+ win->transient = w->id;
+ *trans = w->id;
+ DNPRINTF(SWM_D_MISC, "set_child_transient: asjusting "
+ "transient to %lu\n", win->transient);
+ break;
+ }
+ }
+
+ if (wmh)
+ XFree(wmh);
+}
+
+long
+window_get_pid(Window win)
+{
+ Atom actual_type_return;
+ int actual_format_return = 0;
+ unsigned long nitems_return = 0;
+ unsigned long bytes_after_return = 0;
+ long *pid = NULL;
+ long ret = 0;
+ const char *errstr;
+ unsigned char *prop = NULL;
+
+ if (XGetWindowProperty(display, win,
+ XInternAtom(display, "_NET_WM_PID", False), 0, 1, False,
+ XA_CARDINAL, &actual_type_return, &actual_format_return,
+ &nitems_return, &bytes_after_return,
+ (unsigned char**)(void*)&pid) != Success)
+ goto tryharder;
+ if (actual_type_return != XA_CARDINAL)
+ goto tryharder;
+ if (pid == NULL)
+ goto tryharder;
+
+ ret = *pid;
+ XFree(pid);
+
+ return (ret);
+
+tryharder:
+ if (XGetWindowProperty(display, win,
+ XInternAtom(display, "_SWM_PID", False), 0, SWM_PROPLEN, False,
+ XA_STRING, &actual_type_return, &actual_format_return,
+ &nitems_return, &bytes_after_return, &prop) != Success)
+ return (0);
+ if (actual_type_return != XA_STRING)
+ return (0);
+ if (prop == NULL)
+ return (0);
+
+ ret = strtonum(prop, 0, UINT_MAX, &errstr);
+ /* ignore error because strtonum returns 0 anyway */
+ XFree(prop);
+
+ return (ret);