[WPF]Drawing.BitmapをBitmapSourceへ変換

Mohmongar
日記
csharpicon昔のDLLがBitmapしか対応してないので、System.DrawingのBitmapをWPFのBitmapSourceへ変換する。           
[System.Runtime.InteropServices.DllImport("gdi32.dll")]
public static extern bool DeleteObject(IntPtr hObject);
public BitmapSource BmpToWPFBmp(System.Drawing.Bitmap bitmap)
{
    IntPtr hBitmap = bitmap.GetHbitmap();

    BitmapSource source;
    source = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(hBitmap, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
    DeleteObject(hBitmap);
    return source;
}