How to return a Jpg Image as result of a function?

[Dexter]

Hello all,
I have a Class with a function that create a imagem, i need that this
function return a jpg imagem. Somebody know how to make this?



Thanks



Dexter

 

[Hans Kesting]

Hello all,
I have a Class with a function that create a imagem, i need that this
function return a jpg imagem. Somebody know how to make this?



Thanks



Dexter

The Bitmap class is independent of encoding. You can however convert
the image to a byte[] with some encoding (like jpeg):

Bitmap img = ....
MemoryStream io = new MemoryStream();
img.Save(io, ImageFormat.Jpeg);
byte[] ba = io.GetBuffer();

(namespaces used: System.Drawing, System.Drawing.Imaging, System.IO)

Hans Kesting

 

[Girish bharadwaj]

You will probably need to write your own HttpHandler which will generate the
content-type of jpeg and stuff that to the Response.OutputStream.
Some old code (http://www.devweek.com/code/esposito_graphics.zip) has some
code that shows how to retrieve the image data out of the database and
stream it as the image.
I believe there is some code by Jeff Prosise as well which does similar
thing.