148a149,168
> GLLock::GLLock(GLCtrl& glCtrl, bool swapBuffer) : ctrl(glCtrl), swap(swapBuffer)
> {
> 	HWND hwnd = ctrl.pane.GetHWND();
> 	HDC hDC = GetDC(hwnd);
> 	wglMakeCurrent(hDC, s_openGLContext);
> }
> 
> GLLock::~GLLock()
> {
> 	if(swap){
> 		HWND hwnd = ctrl.pane.GetHWND();
> 		HDC hDC = GetDC(hwnd);
> 		SwapBuffers(hDC);
> 	}else{
> 		glFlush();
> 	}
> 	wglMakeCurrent(NULL, NULL);
> }
> 
>