From 0a46e20029ee70d75d0008c1709fd52d3fcf56d5 Mon Sep 17 00:00:00 2001
From: "Stefanos A." <stapostol@gmail.com>
Date: Sun, 22 Dec 2013 10:35:05 +0100
Subject: [PATCH] Added WGL_DRAW_TO_WINDOW_ARB flag

Without this flag, OpenGL rendering does not work as expected.

Additionally, all WGL_ARB_pixel_format attributes are expected to be
specified in key-value pairs. Fixed double-buffering and stereoscoping
rendering attributes.
---
 Source/OpenTK/Platform/Windows/WinGraphicsMode.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Source/OpenTK/Platform/Windows/WinGraphicsMode.cs b/Source/OpenTK/Platform/Windows/WinGraphicsMode.cs
index a9544f71..9de28341 100644
--- a/Source/OpenTK/Platform/Windows/WinGraphicsMode.cs
+++ b/Source/OpenTK/Platform/Windows/WinGraphicsMode.cs
@@ -104,6 +104,9 @@ namespace OpenTK.Platform.Windows
                 List<int> attributes = new List<int>();
                 attributes.Add((int)WGL_ARB_pixel_format.AccelerationArb);
                 attributes.Add((int)WGL_ARB_pixel_format.FullAccelerationArb);
+                
+                attributes.Add((int)WGL_ARB_pixel_format.DrawToWindowArb);
+                attributes.Add(1);
 
                 if (mode.ColorFormat.Red > 0)
                 {
@@ -176,11 +179,13 @@ namespace OpenTK.Platform.Windows
                 if (mode.Buffers > 0)
                 {
                     attributes.Add((int)WGL_ARB_pixel_format.DoubleBufferArb);
+                    attributes.Add(mode.Buffers > 1 ? 1 : 0);
                 }
 
                 if (mode.Stereo)
                 {
                     attributes.Add((int)WGL_ARB_pixel_format.StereoArb);
+                    attributes.Add(1);
                 }
 
                 attributes.Add(0);