关于流的操作

VB.NET code

Dim ms As New IO.MemoryStreamPictureBox1.Image = Image.FromStream(ms)

这样可以把流写入图片控件，那反过来把图片控件中的图片写入流，该怎么做？

[解决办法]
Dim s As IO.Stream
Dim img As Image
img.Save(s, System.Drawing.Imaging.ImageFormat.Bmp)