Question

I’m making an application which uses MANY images. The application gets the images from a server, and downloads them one at a time.
After many images the creation of a bitmap returns an exception, but i don’t know how to solve this. Here is my function for downloading the images:

 public static Bitmap getImageFromWholeURL(String sURL)
    {

        HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(sURL);
        myRequest.Method = "GET";


        // If it does not exist anything on the url, then return null
        try
        {
            HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
            System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(myResponse.GetResponseStream());
            myResponse.Close();
            return bmp;
        }
        catch (Exception e)
        {
            return null;
        }

      }

Can anyone help me out here?
Thanks in advance!

Answer 1

“Many images” is of course closely associated with running out of memory. Bitmaps can get large, they’ll eat up a lot of unmanaged virtual memory. You’ll have to make your program smarter and store less bitmaps in memory. Or save them temporarily to a file. Or re-download them if necessary. And properly clean up their resources with the Dispose() method, especially important for the Bitmap class.