From 56c16321625dc1a0429c1eda365f563f31c37921 Mon Sep 17 00:00:00 2001
From: Andrew Innes <andrewi@gnu.org>
Date: Tue, 2 Jan 2001 22:45:32 +0000
Subject: [PATCH] (get_frame_dc): Abort if called on a non-w32 frame.

---
 src/w32xfns.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/w32xfns.c b/src/w32xfns.c
index 9117f7e91a9..49d3e1c2e7e 100644
--- a/src/w32xfns.c
+++ b/src/w32xfns.c
@@ -122,6 +122,9 @@ get_frame_dc (FRAME_PTR f)
 {
   HDC hdc;
 
+  if (f->output_method != output_w32)
+    abort ();
+
   enter_crit ();
 
   hdc = GetDC (f->output_data.w32->window_desc);
-- 
2.39.5