From 94c02e827ac10cfcbb7da5beb6c279468e9e98f9 Mon Sep 17 00:00:00 2001
From: "Stefanos A." <stapostol@gmail.com>
Date: Thu, 3 Oct 2013 16:45:28 +0200
Subject: [PATCH] NRE -> GraphicsContextMissingException

Throw a GraphicsContextMissingException if GraphicsBindingBase.LoadAll() is called without a current GraphicsContext.
---
 Source/OpenTK/Graphics/GraphicsBindingsBase.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Source/OpenTK/Graphics/GraphicsBindingsBase.cs b/Source/OpenTK/Graphics/GraphicsBindingsBase.cs
index 8ca5997e..29cbdbac 100644
--- a/Source/OpenTK/Graphics/GraphicsBindingsBase.cs
+++ b/Source/OpenTK/Graphics/GraphicsBindingsBase.cs
@@ -51,7 +51,10 @@ namespace OpenTK.Graphics
         /// </remarks>
         protected override IntPtr GetAddress(string funcname)
         {
-            return (GraphicsContext.CurrentContext as IGraphicsContextInternal).GetAddress(funcname);
+            var context = GraphicsContext.CurrentContext as IGraphicsContextInternal;
+            if (context == null)
+                throw new GraphicsContextMissingException();
+            return context != null ? context.GetAddress(funcname) : IntPtr.Zero;
         }
     }
 }