RaumfeldNET.ImageDataCache.requestImageFromFile C# (CSharp) Method

        public void requestImageFromFile(String _fileName, delegate_OnReqestImageDone _sink)
        {
            try
            {
                String imageId = _fileName;
                // if image is already in cache, we immediately notify the sinks
                if (this.existsImage(_fileName))
                {
                    if (_sink != null) ((delegate_OnReqestImageDone)_sink)(_fileName);
                }
                else
                {
                    this.addImage(imageId, Image.FromFile(_fileName));
                    if (_sink != null) ((delegate_OnReqestImageDone)_sink)(_fileName);
                }
            }
            catch (Exception e)
            {
                this.writeLog(LogType.Error, String.Format("Fehler bei 'requestImageFromFile' für Datei '{0}'", _fileName),e);
            }
        }