+/* try to grab focus, we may have to wait for another process to ungrab */
+static void
+grabfocus(Window win)
+{
+ struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
+ Window focuswin;
+ int i, revertwin;
+
+ for (i = 0; i < 100; ++i) {
+ XGetInputFocus(dpy, &focuswin, &revertwin);
+ if (focuswin == win)
+ return;
+ XSetInputFocus(dpy, win, RevertToParent, CurrentTime);
+ nanosleep(&ts, NULL);
+ }
+ errx(1, "cannot grab focus");
+}
+