Gif Resizing

[pbarbalias]

Hi, I am trying to resize a gif image I have on my server, and then stream it to the browser. (.net 2.0 & C#)

Unfortunately, the gif gets a bit distorted. I 've read a lot of walkthroughs, the dgi+ palette, etc etc but still haven't done it yet.

I have no problem using a third party component as long as its price is reasonable, and maybe the option to also edit multi-frame gifs.

Let me give you a small clue of what I've written so far:

void ServeTheImage(string fileName, string downloadExtension, int iWidth, int iHeight)
{
int original_width = 0;
int original_height = 0;

string WorkingDirectory = "/mw/";
string fullfilename = WorkingDirectory + fileName;

// create New image and bitmap objects. Load the image file and put into a resized bitmap.
System.Drawing.Image myImage = System.Drawing.Image.FromFile(Server.MapPath(fullfilename));

original_width = myImage.Width;
original_height = myImage.Height;

fixWidthHeight(ref original_width, ref original_height, ref iWidth, ref iHeight);


Bitmap b = Bitmap(iWidth, iHeight, PixelFormat.Format24bppRgb);

Graphics g = Graphics.FromImage(b);

g.DrawImage(myImage, Rectangle(0, 0, 234, 30), Rectangle(0, 0, iWidth, iHeight), GraphicsUnit.Pixel);

b.Save(Server.MapPath("pics/NewAnimatedGif.gif"));

System.Drawing.Image.GetThumbnailImageAbort dummyCallBack = new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);

System.Drawing.Image thumbNailImg = myImage.GetThumbnailImage(iWidth, iHeight, dummyCallBack, IntPtr.Zero);

Response.Clear();
Response.ContentType = "image/gif";

thumbNailImg.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Gif);
}

[Phil Weber]

See if this helps: http://msdn2.microsoft.com/en-us/library/k0fsyd4e.aspx

[pbarbalias]

I have dtried to use the drawing classes but it seems they only work for jpeg.

For gif I get this:

A Graphics object cannot be created from an image that has an indexed pixel format.

Maybe a component would do better and easiest job?