在C#中使用SharpDX，如何将SharpDx的Bitmap与GDI的Bitmap互相转换？

在C#中使用SharpDX和GDI进行Bitmap互相转换的方法如下：

1. 将SharpDX的Bitmap转换为GDI的Bitmap：

using (MemoryStream stream = new MemoryStream())
{
    bitmap.Save(stream, ImageFormat.Bmp);
    stream.Position = 0;
    System.Drawing.Bitmap gdiBitmap = new System.Drawing.Bitmap(stream);
}

2. 将GDI的Bitmap转换为SharpDX的Bitmap：

using (var stream = new MemoryStream())
{
    gdiBitmap.Save(stream, ImageFormat.Bmp);
    stream.Seek(0, SeekOrigin.Begin);
    SharpDX.Direct3D11.Texture2D sharpDxBitmap = SharpDX.Direct3D11.Texture2D.FromStream(device, stream, (int)stream.Length);
}

其中，`bitmap`为SharpDX的Bitmap对象，`gdiBitmap`为GDI的Bitmap对象，`device`为SharpDX的Device对象。