opencv-IplImage结构图像画在hdc上

// draw image(IplImage) to hdc
void DrawPicToHDC(IplImage *img, UINT ID, HWND hwnd)
{
// mfc 方法
// HWND *pDC = GetDlgItem(ID)->GetDC();
// HDC hDC=  pDC->GetSafeHdc();
// GetDlgItem(ID)->GetClientRect(&rect);
// CvvImage cimg;
// cimg.CopyOf(img);
//  cimg.DrawToHDC(hDC,&rect);
// ReleaseDC(hDC);

// win32方法
// get the  handle of static control id
HWND  hID= GetDlgItem(hwnd, ID);

// get the hdc of the handle
HDC hDC = GetDC(hID);

// the rect struct
RECT rect;

// get the client of the handle set it in the rect
GetClientRect(hID,&rect);

// a class of image
 CvvImage cimg;

 // IplImage copy to CvvImage
 cimg.CopyOf(img);

 // show the IplImage to the hdc
 cimg.DrawToHDC(hDC,&rect);

 // release dc
  ReleaseDC(hID, hDC);
}