From 8f125fb4d9616a1f09590eb97950dff96ec33dc3 Mon Sep 17 00:00:00 2001
From: Seungha Yang <seungha.yang@navercorp.com>
Date: Wed, 10 Jul 2019 01:27:43 +0900
Subject: [PATCH] examples: win32-videooverlay: Fix C2440 build error

Follow WNDPROC define to avoid implicit type conversion.
---
 tests/examples/overlay/win32-videooverlay.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/examples/overlay/win32-videooverlay.c b/tests/examples/overlay/win32-videooverlay.c
index 7868a20..fed970a 100644
--- a/tests/examples/overlay/win32-videooverlay.c
+++ b/tests/examples/overlay/win32-videooverlay.c
@@ -35,7 +35,7 @@ static HWND hwnd = NULL;
 
 #define DEFAULT_VIDEO_SINK "glimagesink"
 
-static LRESULT
+static LRESULT CALLBACK
 window_proc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 {
   switch (message) {
@@ -139,7 +139,7 @@ main (gint argc, gchar ** argv)
   /* prepare window */
   wc.cbSize = sizeof (WNDCLASSEX);
   wc.style = CS_HREDRAW | CS_VREDRAW;
-  wc.lpfnWndProc = window_proc;
+  wc.lpfnWndProc = (WNDPROC) window_proc;
   wc.hInstance = hinstance;
   wc.hCursor = LoadCursor (NULL, IDC_ARROW);
   wc.lpszClassName = "GstWIN32VideoOverlay";
-- 
2.7.4