Create Graphics in Custom Control

[Stanley]

Is is possible to create a graphic using GDI+ and send it back from a
control doing something like:

Protected Overrides Sub Render(ByVal output As System.Web.UI.HtmlTextWriter)
' Set the content type
HttpContext.Current.Response.ContentType = "image/jpeg"
Dim b As Bitmap = BuildImage()
' send the image to the viewer
b.Save(HttpContext.Current.Response.OutputStream, ImageFormat.Jpeg)
' tidy up
b.dispose()
End Sub

At the current moment when I try this I get back a bunch of garbage like:
[garbage return]
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[/garbage return]

TIA

-Stanley

 

[Antonio Bakula]

Is is possible to create a graphic using GDI+ and send it back from a
control doing something like:

Protected Overrides Sub Render(ByVal output As System.Web.UI.HtmlTextWriter)
' Set the content type
HttpContext.Current.Response.ContentType = "image/jpeg"
Dim b As Bitmap = BuildImage()
' send the image to the viewer
b.Save(HttpContext.Current.Response.OutputStream, ImageFormat.Jpeg)
' tidy up
b.dispose()
End Sub

you can check out my TStreamImage control at :

http://baksa.europe.webmatrixhosting.net/

see PStreamImage, it has source included, it's written in Delphi but there
are also VS.NET c# examples.