How to use Memory DC with gdi+

Memory DC

Sample code...

HDC hSrcDC = GetDC(0);

HDC hMemDC = CreateCompatibleDC(hSrcDC);

Graphics graphics(hMemDC);

graphics.DrawLine(10,10,100,100);

BitBlt(hSrcDC,0,0,100,100,hMemDC,0,0,SRCCPY);

and then Do the bitBlt op to the source...