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POImage.Save() throws ExternalException on Image loaded from Stream (Image.FromStream())
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  1. POImage.Save() throws ExternalException on Image loaded from Stream (Image.FromStream())
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    copied!<p>I'm tracking down a pesky problem and I've narrowed down the problem down and realized it only happens when I'm dealing with an Image instance returned by Image.FromStream(). I have a utility method that returns an Image instance from a file using a Stream so I don't have the file handle left open. Here is that utility method (nothing special):</p> <pre><code>public static Image ImageFromFileReleaseHandle(string filename) { using (FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read)) { return Image.FromStream(fs); } } </code></pre> <p>When I try to save an Image loaded from the above method I'm getting an InteropServices.ExternalException "A generic error occurred in GDI+.". The following code example will demonstrate this:</p> <pre><code>private void button6_Click(object sender, EventArgs e) { var filename = @"D:\My Documents\My Pictures\2010-03-27 hangover hike.jpg"; // Get an Image instance Image image; using (FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read)) { image = Image.FromStream(fs); } // Save to a temp file - this is the code that throws the exception image.Save(Path.GetTempFileName()); } </code></pre> <p>If I load the image using Image.FromFile() I can save no problem:</p> <pre><code>private void button6_Click(object sender, EventArgs e) { var filename = @"D:\My Documents\My Pictures\2010-03-27 hangover hike.jpg"; // Get an Image instance Image image = Image.FromFile(filename); // Save to a temp file - this is the code that throws the exception image.Save(Path.GetTempFileName()); } </code></pre> <p>I can't think of any additional information that would be helpful. Hopefully my code examples are simple enough that you can clearly see the problem.</p> <p>Thanks, Steve</p>
 

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