//截图

int cropImage(const char* file, int left, int top, int right, int bottom, BYTE* &dstData, DWORD& dstLen)

{

    DWORD dw1 = GetTickCount();

    fipImage image;

    BOOL bSuccess = image.load(file);

    if ( !bSuccess )

    {

        printf("image.load fail\n");

        return -;

    }

    //bSuccess = image.crop(0, 0, 300, 200);

    bSuccess = image.crop(left, top, right, bottom);

    if ( !bSuccess )

    {

        printf("image.crop fail\n");

        return -;

    }

    // fipImage -> fipMenoryIO

    fipMemoryIO memIO;

    bSuccess = image.saveToMemory(FIF_JPEG, memIO, JPEG_DEFAULT);

    if ( !bSuccess )

    {

        printf("image.saveToMemory fail\n");

        return -;

    }

    // fipMemoryIO -> char*

    BYTE* srcData = NULL;;

    DWORD size_in_bytes = ;

    bSuccess = memIO.acquire(&srcData, &size_in_bytes);

    if ( !bSuccess )

    {

        printf("memIO.acquire fail\n");

        return -;

    }

    DWORD dw2 = GetTickCount() - dw1;

    printf("%u\n", dw2);

    dstLen = size_in_bytes;

    BYTE* data = new BYTE[dstLen];

    memcpy(data, srcData, dstLen);

    dstData = data;

    //    bSuccess = image.save("crop.jpg");

    return ;

}

//函数使用

BYTE* data = NULL;;

DWORD dataLen = ;

cropImage(lpszTestFile, , , , , data, dataLen);