Using objEncoderParams when saving an image

[darrel]

I'm currently saving a JPG file as such:

imgOutput.Save("path/filename.jpg", System.Drawing.Imaging.ImageFormat.Jpeg)

That saves the imgOutput as a JPG to the path shown.

Works fine.

Now, I'd like to change the JPG compression it uses. I apparently can do
that with an EncoderParameter:

Dim objEncoderParams As New EncoderParameters(1)
objEncoderParams.Param(0) = New EncoderParameter(Encoder.Quality, 500)
imgOutput.Save("path/filename.jpg", *encoder*, objEncoderParams)

What I'm stuck on is the 'encoder' value. What do I put there to? I assume I
need to tell it to use the JPG encoder, right? If so, I'm stuck on the
syntax.

-Darrel

 

[George Ter-Saakov]

Check this out
http://weblogs.asp.net/despos/archive/2004/01/12/57752.aspx

George

 

[darrel]

Check this out
http://weblogs.asp.net/despos/archive/2004/01/12/57752.aspx

Well, that leaves me with the same question, I think. The key line being:

bmp.Save(fileName, jpegCodecInfo, codecParams);

I'm stumped as to what the 'jpegCodecInfo' is. How do I set that?

-Darrel