在基于dialog的MFC上显示bmp图

CClientDC dc(this);
int bitmapWidth = geomentrytrans.GetDibMensionsOut().cx;//bitmap Width
int bitmapHeight = geomentrytrans.GetDibMensionsOut().cy;//bitmap Height

::SetStretchBltMode(dc,STRETCH_DELETESCANS);

BITMAPINFO* bif = (BITMAPINFO*)malloc(sizeof(BITMAPINFO)+256*sizeof(RGBQUAD));

bif->bmiHeader.biSize = 40;
bif->bmiHeader.biWidth = bitmapWidth;
bif->bmiHeader.biHeight = bitmapHeight;
bif->bmiHeader.biPlanes = 1;
bif->bmiHeader.biBitCount = 8;
bif->bmiHeader.biCompression = BI_RGB;
bif->bmiHeader.biSizeImage = bitmapHeight*bitmapWidth;
bif->bmiHeader.biXPelsPerMeter = 0;
bif->bmiHeader.biYPelsPerMeter = 0;
bif->bmiHeader.biClrUsed = 0;
bif->bmiHeader.biClrImportant = 0;

for (int i=0;i<256;++i)
{    
bif->bmiColors[i].rgbRed=(unsigned char)i;
bif->bmiColors[i].rgbGreen=(unsigned char)i;
bif->bmiColors[i].rgbBlue=(unsigned char)i;
bif->bmiColors[i].rgbReserved=0;
}

::StretchDIBits((&dc)->GetSafeHdc(),750,69,bitmapWidth,bitmapHeight,0,0,bitmapWidth,bitmapHeight,
geomentrytrans.m_pImgDataOut,bif,DIB_RGB_COLORS,SRCCOPY);