怎样保存放大后的图像？

[wood87654321]

将图像保存到一个bitmap对象后，可以用graphics.drawimage方法放大显示该bitmap对象，现在我想把放大后的图像保存为另一个bitmap对象该怎么办？
麻烦处在于放大显示似乎并没有真正更改原bitmap对象的尺寸，我得不到那个真正被放大后的bitmap

[coolstarhty]

im myBitmap As Bitmap = image.fromfile("old.bmp")
Dim Bmp As Bitmap
Dim g As Graphics
Dim FromRectangle As Rectangle
Dim ToRectangle As Rectangle

Bmp = New Bitmap(100, 100, PixelFormat.Format32bppRgb)
g = Graphics.FromImage(Bmp)
FromRectangle = New Rectangle(0, 0 , 10, 10)
ToRectangle = New Rectangle(0, 0, 100,100)
g.DrawImage(myBitmap, ToRectangle, FromRectangle, GraphicsUnit.Pixel)
Bmp.Save("new.bmp")

[wangchaocn]

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