MFC .ico格式转.bmp格式 图标转位图

void IcoSaveAsBmp(CString strIcoFilename, CString strBmpFileName)    
{    
HICON hIcon = (HICON)LoadImage(NULL, strIcoFilename, IMAGE_ICON, 0, 0, LR_LOADFROMFILE | LR_DEFAULTSIZE);   
ICONINFO IconInfo;    
GetIconInfo(hIcon,&IconInfo);   
//定义图形大小    
int   iWidth   =   2 * IconInfo.xHotspot;    
int   iHeight   =   2 * IconInfo.yHotspot;    
int   iPixel     =   16;    
//图形格式参数    
LPBITMAPINFO   lpbmih   =   new   BITMAPINFO;    
lpbmih-> bmiHeader.biSize   =   sizeof(BITMAPINFOHEADER);    
lpbmih-> bmiHeader.biWidth   =   iWidth;    
lpbmih-> bmiHeader.biHeight   =   iHeight;    
lpbmih-> bmiHeader.biPlanes   =   1;    
lpbmih-> bmiHeader.biBitCount   =   iPixel;    
lpbmih-> bmiHeader.biCompression   =   BI_RGB;    
lpbmih-> bmiHeader.biSizeImage   =   0;    
lpbmih-> bmiHeader.biXPelsPerMeter   =   0;    
lpbmih-> bmiHeader.biYPelsPerMeter   =   0;    
lpbmih-> bmiHeader.biClrUsed   =   0;    
lpbmih-> bmiHeader.biClrImportant   =   0;    

//创建位图数据    
HDC   hdc,hdcMem;    
HBITMAP   hBitMap   =   NULL;    
CBitmap   *pBitMap   =   NULL;    
CDC   *pMemDC   =   NULL;    
BYTE   *pBits;