GetCurrentContext null

IntPtr hrc = wglGetCurrentContext(), hwnd = AllegroDisplayContext.GetHandle(Context.GetContext<AllegroDisplayContext>());
ContextHandle contextHandle = new ContextHandle(hrc);
IWindowInfo window = Utilities.CreateWindowsWindowInfo(hwnd);
graphicsContext = new GraphicsContext(contextHandle, window); // <- Exception

public GraphicsContext(ContextHandle handle, IWindowInfo window, IGraphicsContext shareContext, int major, int minor, GraphicsContextFlags flags)
        {
            lock (SyncRoot)
            {
                IsExternal = true;
 
                if (handle == ContextHandle.Zero)
                {
                    implementation = new OpenTK.Platform.Dummy.DummyGLContext(handle);
                }
                else if (available_contexts.ContainsKey(handle))
                {
                    throw new GraphicsContextException("Context already exists.");
                }
                else
                {
					IPlatformFactory factory = null; // Starting here
                    switch ((flags & GraphicsContextFlags.Embedded) == GraphicsContextFlags.Embedded)
                    {
						case false: implementation = Factory.Default.CreateGLContext(handle, window, shareContext, direct_rendering, major, minor, flags); factory = Factory.Default; break;
                        case true: implementation = Factory.Embedded.CreateGLContext(handle, window, shareContext, direct_rendering, major, minor, flags); factory = Factory.Embedded; break;
                    }
 
					if (GetCurrentContext == null)
						GetCurrentContext = factory.CreateGetCurrentGraphicsContext(); //Ending here
                }
 
                available_contexts.Add((implementation as IGraphicsContextInternal).Context, new WeakReference(this));
 
                (this as IGraphicsContextInternal).LoadAll();
            }
        }