OpenCV读入的图像如何显示在窗体上

IplImage* pImg; 
   CString strPathName; 
   CFileDialog dlg(TRUE); 
   CDC* pDC = this->GetDC(); 
   CRect rect; 
   this->GetClientRect(&rect); 
   if(dlg.DoModal()==IDOK) 
   ...{ 
      strPathName = dlg.GetPathName(); 

      pImg = cvLoadImage(strPathName); 
      BITMAPINFO bmi; 
      FillBitmapInfo(&bmi,pImg->width,pImg->height,(pImg->depth)*(pImg->nChannels));    
       
      ::StretchDIBits(pDC->GetSafeHdc(),rect.left,rect.top,pImg->width,pImg->height,0,0,pImg->width,pImg->height,pImg->imageData,&bmi,DIB_RGB_COLORS,SRCCOPY); 
   }

void  COpenCVDrawView::FillBitmapInfo( BITMAPINFO* bmi, int width, int height, int bpp ) 
...{ 
    ASSERT( bmi && width > 0 && height > 0 && 
      (bpp == 8 || bpp == 24 || bpp == 32) ); 
    
    BITMAPINFOHEADER* bmih = &(bmi->bmiHeader); 
    
    memset( bmih, 0, sizeof(*bmih)); 
    bmih->biSize   = sizeof(BITMAPINFOHEADER); 
    bmih->biWidth  = width; 
    bmih->biHeight = -abs(height); 
    bmih->biPlanes = 1; 
    bmih->biBitCount = bpp; 
    bmih->biCompression = BI_RGB; 
    
    if( bpp == 8 ) 
    ...{ 
        RGBQUAD* palette = bmi->bmiColors; 
        int i; 
        for( i = 0; i < 256; i++ ) 
        ...{ 
            palette[i].rgbBlue = palette[i].rgbGreen = palette[i].rgbRed = (BYTE)i; 
            palette[i].rgbReserved = 0; 
        } 
    } 
}