GDI + drawing

[C++ Programming]

Hi

I did following:

CBitmap *pBitmap = Gdiplus::FromFile(wfname);

Gdiplus::Graphics gr(dc);
gr.SetPageUnit(Gdiplus::UnitPixel);
gr.DrawImage(pBmp, p, 3);

The image drawing is very slow. How can I improve the image drawing? how can I force image be loaded into memory?

Thanks,