大家帮我看看这段在列表框中显示小图的代码，谢谢！！

结果图能够显示，但大小没能得到改变，大家看看问题在哪儿，谢谢！
CImageList  m_ImageListThumb;  // image list holding the thumbnails
HBITMAP hBitmap;
hBitmap=ImageLoad(_T("C:\\WINDOWS\\Desktop\\vc\\1.jpg"));  //函数ImageLoad返回HBITMAP
HDC hMemDC = ::CreateCompatibleDC(NULL);    
::SelectObject(hMemDC, hBitmap);
pImage = new CBitmap();         
pImage->Attach(hBitmap);        
BITMAP bmpX;
pImage->GetBitmap(&bmpX);
char* bmpBuffer=(char*)GlobalAlloc(GPTR,bmpX.bmWidthBytes*bmpX.bmHeight);//allocate memory  
    DWORD dwValue=pImage->GetBitmapBits(bmpX.bmWidthBytes *bmpX.bmHeight,bmpBuffer);//Get the bitmap bits    
        
BITMAPINFO the_bmInfo;
ZeroMemory(&the_bmInfo,sizeof(the_bmInfo));
the_bmInfo.bmiHeader.biSize = sizeof(BITMAPINFO);
the_bmInfo.bmiHeader.biBitCount = bmpX.bmBitsPixel;
the_bmInfo.bmiHeader.biHeight = -bmpX.bmHeight;
the_bmInfo.bmiHeader.biPlanes = 1;
the_bmInfo.bmiHeader.biWidth = bmpX.bmWidth;
GlobalFree((HGLOBAL)bmpBuffer);//Free memory
//
::StretchDIBits(hMemDC, (THUMBNAIL_WIDTH-the_bmInfo.bmiHeader.biWidth)/2,
        (THUMBNAIL_HEIGHT-the_bmInfo.bmiHeader.biHeight)/2,
        the_bmInfo.bmiHeader.biWidth, 
        the_bmInfo.bmiHeader.biHeight, 
        //THUMBNAIL_WIDTH, THUMBNAIL_HEIGHT, 
        0, 0, 
        the_bmInfo.bmiHeader.biWidth, 
        the_bmInfo.bmiHeader.biHeight, 
        bmpBuffer, 
        &the_bmInfo, 
        DIB_RGB_COLORS, 
        SRCCOPY);pImage = new CBitmap();         
pImage->Attach(hBitmap);// add bitmap to our image list
m_ImageListThumb.Replace(i, pImage, NULL);
m_ListThumbnail.InsertItem(i, _T("1.jpg"), i); //m_ListThumbnail为CListCtrl