CxImage注释

long CxImage::Draw	(	HDC 	hdc,
long 	x = 0,
long 	y = 0,
long 	cx = -1,
long 	cy = -1,
RECT * 	pClipRect = 0,
bool 	bSmooth = false	 
)	

long CxImage::Draw	(	HDC 	hdc,
const RECT & 	rect,
RECT * 	pClipRect = NULL,
bool 	bSmooth = false	 
)	

HDC 绘图设备，rect 绘图的区域，确定绘图的左上角和右下角坐标。pClipRect，裁剪区域，一般可以和绘图区域一样大小，除非特殊需要。