--- gdk_signals.defs.orig	2026-03-31 10:14:50.854300256 +0200
+++ gdk_signals.defs	2026-03-31 10:14:53.265062083 +0200
@@ -1435,11 +1435,11 @@
 (define-signal event
   (of-object "GdkSurface")
   (return-type "gboolean")
   (flags "Run Last")
   (parameters
-    '("gpointer" "event")
+    '("GdkEvent*" "event")
   )
 )
 
 (define-signal layout
   (of-object "GdkSurface")
