CWnd::UpdateLayeredWindow (MFC,C++,GDI+) Fehler

#include <afxwin.h>
#include <gdiplus.h>


#pragma comment( lib, "gdiplus.lib" )
using namespace Gdiplus;




class FFrameWnd :public CFrameWnd
{


public:
	// Konstruktor
    FFrameWnd()
    {
         //Create(NULL,"MFC Tutorial Part 1 CoderSource Window");


		// Klasse registrieren
		const char *cWndClass;
		cWndClass = AfxRegisterWndClass( CS_HREDRAW|CS_VREDRAW , NULL,CreateSolidBrush(RGB(0,0,0)) ,NULL);

		// Create Window
		CreateEx(WS_EX_LAYERED |WS_EX_TOPMOST /*|WS_EX_TOOLWINDOW*/ ,cWndClass ,_T(""),WS_VISIBLE|WS_POPUP, 0,0,200,200,NULL, NULL, NULL );


		ShowWindow(1);


		// Blend Structur
		BLENDFUNCTION hBlend;
		hBlend.BlendFlags = 0;
		hBlend.SourceConstantAlpha = 255;
		hBlend.AlphaFormat = AC_SRC_ALPHA;


		// Start GDI+
		GdiplusStartupInput gdiplusStartupInput;
		ULONG_PTR           gdiplusToken;  
		GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);


		// Create Graphics and Bitmaps
		CDC hScreen = CDC();
		CDC hCDC;
		hCDC.CreateCompatibleDC(&hScreen);
		HBITMAP hBitmap = CreateCompatibleBitmap(hScreen,200,200);
		SelectObject(hCDC,hBitmap ); 


		// Draw
		Graphics *hGraphics = Graphics::FromHDC(hCDC);
		hGraphics->Clear(Color(255,200,200,200));



		// Set Position/Size
		POINT hPoint = {0, 0};	// Screen Position
		SIZE hSize = {200,200};	// Window Size
		POINT pptSrc = {0,0};	//


		// Display
		UpdateLayeredWindow(&hScreen,&hPoint,&hSize,&hCDC,&pptSrc,0,&hBlend,ULW_ALPHA);


    }
};


class FWinApp :public CWinApp
{
   FFrameWnd *wnd; 
public:
   BOOL InitInstance()
   {


        wnd = new FFrameWnd();
        m_pMainWnd = wnd;
        m_pMainWnd->ShowWindow(1);
        return 1;
     }
};


FWinApp theApp;