HICON 轉ImageSource

C++通過SHGetFileInfo拿到的圖標是HICON類型。
WPF要顯示只能用Image控件，設置Source源，需要HICON轉ImageSource

//IntPtr pIconData 通過HICON強轉
private ImageSource IconDataToImageSource(IntPtr pIconData)
{
        ImageSource imageSoure = null;
        System.Drawing.Icon icon = System.Drawing.Icon.FromHandle(pIconData);
        //拿到的是大圖標
        Int32Rect rect = new Int32Rect(0, 0, 32, 32);
        imageSoure = Imaging.CreateBitmapSourceFromHIcon(pIconData, rect, BitmapSizeOptions.FromEmptyOptions());
        return imageSoure;
}