diff --unified diffold/sxalert.c diffnew/sxalert.c
--- diffold/sxalert.c	2026-10-20 21:00:21.450609225 +0300
+++ diffnew/sxalert.c	2026-10-20 21:01:30.745610872 +0300
@@ -190,6 +190,7 @@
 				     (unsigned int)a->border_width,
 				     hex2int(a->border_color),
 				     hex2int(a->bg_color));
+	fprintf(stderr, "sxalert XID: 0x%lx\n", (unsigned long)w->win);
 	XSetWindowAttributes attr = {
         	.override_redirect = True
 	};