From d9eeb2bd908771920b618225b17db6a8e40ae150 Mon Sep 17 00:00:00 2001
From: the_fiddler <the_fiddler@ebc5dd9b-fb1d-0410-b6f8-d24c324e9604>
Date: Wed, 26 Nov 2008 21:55:43 +0000
Subject: [PATCH] Add debug output to SwapBuffers.

---
 Source/OpenTK/Platform/Windows/WinGLContext.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Source/OpenTK/Platform/Windows/WinGLContext.cs b/Source/OpenTK/Platform/Windows/WinGLContext.cs
index c08cda77..b0323fd2 100644
--- a/Source/OpenTK/Platform/Windows/WinGLContext.cs
+++ b/Source/OpenTK/Platform/Windows/WinGLContext.cs
@@ -138,8 +138,8 @@ namespace OpenTK.Platform.Windows
 
         public void SwapBuffers()
         {
-
-            Functions.SwapBuffers(currentWindow.DeviceContext);
+            if (!Functions.SwapBuffers(currentWindow.DeviceContext))
+                Debug.Print("SwapBuffers failed, error: {0}", Marshal.GetLastWin32Error());
         }
 
         #endregion