CxImage* ScaleImageBy9PNG(CxImage *pRawImage, int nDstWidth,int nDstHeight)

{

    if(NULL == pRawImage) return NULL;

    CDC *pDC = CDC::FromHandle(::GetDC(NULL));

    CDC memDC;

    memDC.CreateCompatibleDC(pDC);

    const UINT nBMPWidth = nDstWidth;

    const UINT nBMPHeight= nDstHeight;

    const UINT nRawWidth = pRawImage->GetWidth();

    const UINT nRawHeight = pRawImage->GetHeight();

    BITMAPINFO bitmapinfo;

    bitmapinfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);

    bitmapinfo.bmiHeader.biBitCount = ;

    bitmapinfo.bmiHeader.biHeight = nBMPHeight;

    bitmapinfo.bmiHeader.biWidth = nBMPWidth;

    bitmapinfo.bmiHeader.biPlanes = ;

    bitmapinfo.bmiHeader.biCompression=BI_RGB;

    bitmapinfo.bmiHeader.biXPelsPerMeter=;

    bitmapinfo.bmiHeader.biYPelsPerMeter=;

    bitmapinfo.bmiHeader.biClrUsed=;

    bitmapinfo.bmiHeader.biClrImportant=;

    bitmapinfo.bmiHeader.biSizeImage = bitmapinfo.bmiHeader.biWidth * bitmapinfo.bmiHeader.biHeight * bitmapinfo.bmiHeader.biBitCount / ;

    HBITMAP    hBitmap = ::CreateDIBSection (memDC.m_hDC,&bitmapinfo, ,NULL, , );

    CxImage *newImage = new CxImage();

    newImage->CreateFromHBITMAP(hBitmap);

    if (hBitmap != NULL)

    {

        DeleteObject(hBitmap);

    }

    ::ReleaseDC(NULL, pDC->m_hDC);

    if(memDC.m_hDC)        ::DeleteDC(memDC.m_hDC);

    int newImageHeight = newImage->GetHeight();

    int newImageWidth = newImage->GetWidth();

    if(FALSE == newImage->AlphaIsValid())

    {

        newImage->AlphaCreate();

    }

    if(newImageHeight > nRawHeight && newImageWidth > nRawWidth)

    {

        for(int iH=;iH<newImageHeight;++iH)

            for(int iW=;iW<newImageWidth;++iW)

            {

                int rawH = iH,rawW = iW;

                if(rawH >= (newImageHeight-nRawHeight/))

                {

                    rawH = rawH - (newImageHeight - nRawHeight);

                }

                if(rawW >= (newImageWidth-nRawWidth/))

                {

                    rawW = rawW - (newImageWidth - nRawWidth);

                }

                if((iH < nRawHeight/ || iH>=(newImageHeight-nRawHeight/))&&

                    (iW < nRawWidth/ || iW>= (newImageWidth-nRawWidth/)))

                {

                    //4块源

                    RGBQUAD argb = pRawImage->GetPixelColor(rawW,rawH,true);

                    newImage->SetPixelColor(iW,iH,RGB(argb.rgbRed,argb.rgbGreen,argb.rgbBlue));

                    newImage->AlphaSet(iW,iH,argb.rgbReserved);

                }

                else

                {

                    if((iH < nRawHeight/ || iH>=(newImageHeight-nRawHeight/))&&iW->=)

                    {

                        RGBQUAD argb = newImage->GetPixelColor(iW-,iH,true);

                        newImage->SetPixelColor(iW,iH,RGB(argb.rgbRed,argb.rgbGreen,argb.rgbBlue));

                        newImage->AlphaSet(iW,iH,argb.rgbReserved);

                    }

                    else

                    {

                        if(iH -  >= )

                        {

                            RGBQUAD argb = newImage->GetPixelColor(iW,iH-,true);

                            newImage->SetPixelColor(iW,iH,RGB(argb.rgbRed,argb.rgbGreen,argb.rgbBlue));

                            newImage->AlphaSet(iW,iH,argb.rgbReserved);

                        }

                    }

                }

            }

    }

    return newImage;

}