Save a paint

[MaxZak]

I've painted something in a control, using the Graphics object obtained from the CreateGraphics function: how can I save it now?
I've tried something like ("gr" is the control that contains my paint):

Dim imm As Drawing.Bitmap
imm = New Drawing.Bitmap(gr.Width, gr.Height, gr.CreateGraphics)
imm.Save("c:\test.bmp&quot

but it doesn't work, it saves an empty image with the right size...

Tanks

 

[SHelton]

Don't know if it can be done using standard framework classes, but the Windows Forms FAQ page describes a way of calling a WIN32 API to do it:

http://www.syncfusion.com/FAQ/WinForms/FAQ_c3c.asp#q870q