Step 3

apps/LoopThroughWithOpenGLCompositing/LoopThroughWithOpenGLCompositing.cpp

@@ -434,7 +434,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 			}
 
 			// Deselect the current rendering context and delete it
-			wglMakeCurrent(hDC, NULL);
+			wglMakeCurrent(NULL, NULL);
 			wglDeleteContext(hRC);
 
 			// Tell the application to terminate after the window is gone
@@ -486,15 +486,12 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 
 				if (!sInteractiveResize && pOpenGLComposite)
 				{
-					wglMakeCurrent(hDC, hRC);
 					pOpenGLComposite->paintGL(true);
-					wglMakeCurrent( NULL, NULL );
 					RaiseStatusControls(sStatusStrip);
 				}
 			}
 			catch (...)
 			{
-				wglMakeCurrent( NULL, NULL );
 				ShowUnhandledExceptionMessage("Paint failed inside the OpenGL runtime.");
 			}
 			break;