fix windows

GLWidget/GLWidget.cs

@@ -155,6 +155,7 @@ namespace OpenTK
 
         public void ClearCurrent()
         {
+            Gdk.GLContext.ClearCurrent();
             GraphicsContext.MakeCurrent(null);
         }
 
@@ -169,7 +170,7 @@ namespace OpenTK
             {
                 try
                 {
-                    GraphicsContext.MakeCurrent(WindowInfo);
+                    MakeCurrent();
                 }
                 catch (Exception ex)
                 {
@@ -259,7 +260,7 @@ namespace OpenTK
             if (!_initialized)
                 Initialize();
             else if (!IsRenderHandler)
-                GraphicsContext.MakeCurrent(WindowInfo);
+                MakeCurrent();
 
             return true;
         }
@@ -277,6 +278,8 @@ namespace OpenTK
 
         private void Initialize()
         {
+            Toolkit.Init();
+
             _initialized = true;
 
             Gdk.GLContext.ClearCurrent();
@@ -302,7 +305,7 @@ namespace OpenTK
                 buffers--;
             }
 
-            GraphicsMode graphicsMode = new GraphicsMode(colorBufferColorFormat, DepthBPP, StencilBPP, Samples, accumulationColorFormat, buffers, Stereo);
+            GraphicsMode graphicsMode = GraphicsMode.Default;//new GraphicsMode(colorBufferColorFormat, DepthBPP, StencilBPP, Samples, accumulationColorFormat, buffers, Stereo);
 
             this.Window.EnsureNative();
 
@@ -322,7 +325,7 @@ namespace OpenTK
 
             // GraphicsContext
             GraphicsContext = new GraphicsContext(graphicsMode, WindowInfo, GLVersionMajor, GLVersionMinor, GraphicsContextFlags);
-            GraphicsContext.MakeCurrent(WindowInfo);
+            MakeCurrent();
 
             if (OpenTK.Graphics.GraphicsContext.ShareContexts)
             {
@@ -345,6 +348,11 @@ namespace OpenTK
 
             var swap = GraphicsContext.SwapInterval;
 
+            GTKBindingHelper.InitializeGlBindings();
+
+            ClearCurrent();
+            MakeCurrent();
+
             OnInitialized();
         }
 

GLWidget/GTKBindingHelper.cs

@@ -47,12 +47,23 @@ namespace OpenTK
         {
             if (CurrentPlatform == OSPlatform.Windows)
             {
-                IntPtr library = OpenTK.Platform.Windows.Functions.LoadLibrary(WglLibrary);
+                var ptr = OpenTK.Platform.Windows.Wgl.GetAddress(procName);
-                return OpenTK.Platform.Windows.Functions.GetProcAddress(library, procName);
+
+                /* var addr = GetProcAddressWgl(procName);
+                 if (addr == null || addr == IntPtr.Zero)
+                 {
+                     var library = UnsafeNativeMethods.LoadLibrary(WglLibrary);
+
+                     addr = UnsafeNativeMethods.GetProcAddress(library, procName);
+                 }
+
+                 return addr;*/
+
+                return ptr;
             }
             else if (CurrentPlatform == OSPlatform.Linux)
             {
-                return OpenTK.Platform.X11.Glx.GetProcAddress(procName);
+                return GetProcAddressGlx(procName);
             }
             else if(CurrentPlatform == OSPlatform.OSX)
             {

GLWidget/OpenTK/Platform/Windows/WglHelper.cs

@@ -15,7 +15,7 @@ namespace OpenTK.Platform.Windows
         private static IntPtr[] EntryPoints;
         private static string[] EntryPointNames;
 
-        internal const string Library = "OPENGL32.DLL";
+        internal const string Library = "opengl32.dll";
 
         private readonly static Dictionary<string, bool> extensions =
             new Dictionary<string, bool>();

GLWidget/OpenTK/Platform/Windows/WinGLContext.cs

@@ -396,7 +396,9 @@ namespace OpenTK.Platform.Windows
 
             Debug.WriteLine(mode.Index.ToString());
 
-            if (!Functions.SetPixelFormat(window.DeviceContext, (int)mode.Index.Value, ref pfd))
+            var index = Functions.ChoosePixelFormat(window.DeviceContext, ref pfd);
+
+            if (!Functions.SetPixelFormat(window.DeviceContext, index, ref pfd))
             {
                 throw new GraphicsContextException(String.Format(
                     "Requested GraphicsMode not available. SetPixelFormat error: {0}",

GLWidgetTestGTK3/GLWidgetTestGTK3.csproj

@@ -12,7 +12,7 @@
     <ReleaseVersion>1.1</ReleaseVersion>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
-    <PlatformTarget>x64</PlatformTarget>
+    <PlatformTarget>AnyCPU</PlatformTarget>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="GtkSharp" Version="3.22.25.56" />

GLWidgetTestGTK3/MainWindow.cs

@@ -143,7 +143,8 @@ namespace GLWidgetTestGTK3
                 Samples = 4,
                 GLVersionMajor = 3,
                 GLVersionMinor = 3,
-                GraphicsContextFlags = GraphicsContextFlags.Default
+                GraphicsContextFlags = GraphicsContextFlags.ForwardCompatible | GraphicsContextFlags.Debug,
+				IsRenderHandler = true
             };
 
 			this.MainGLWidget.Events |=
@@ -351,6 +352,8 @@ namespace GLWidgetTestGTK3
 			GLInit = true;
 			//GLib.Idle.Add(OnIdleProcessMain);
 
+			MainGLWidget.ClearCurrent();
+
 			System.Threading.Thread thread = new System.Threading.Thread(Start);
 			thread.Start();
 		}