Hi all, I'm using transparency on wince 6 by using IImages and an IImagingFactory. This works ok, but i have one problem. The files are kept open after they are read into memory. I have an in program updating function that i want to use to update those bitmaps but i constantly bump into the problem that they are still in use.

As far as i can see it seems that the CreateImageFromFile keeps a lock on the file after it has been read. Is there any way i can tell it to release the file so that it can be updated? I also store them in a local dictionary for faster access once they have been loaded once, but removing those does not seem to solve anything. My function is below: 

public IImage GetCachedIImage(string reference)
        {
            reference = GetFolderPath(reference);
            if (reference == null)
                return null;

            BufferKey key = new BufferKey(reference, typeof(IImage));
            if (dictionary.ContainsKey(key))
                return (IImage)dictionary[key];

            IImage imagingImage;
            factory.CreateImageFromFile(reference, out imagingImage);
            if (imagingImage != null)
                dictionary.Add(key, imagingImage);
            return imagingImage;
        }

thanks in advance for any insights on this,

Kristof