Listening
In some cases there is the need to monitor conversion process and to receive update for start, progress and completion of a conversion. For such situations GroupDocs.Conversion expose extension point where the client application may hook up and receive updates..
To enable listening you have to:
- Implement you own implementation of IConverterListener interface
- Instantiate ConverterSettings class and pass an instance of the class created in first step
- Pass ConverterSettings object factory to constructor of a Converter class
- Call Convert method of Converter class
Here is a code that demonstrates how to enable listening for GroupDocs.Conversion.
public class ConverterListener : IConverterListener
{
public void Started()
{
Console.WriteLine("Conversion started...");
}
public void Progress(byte current)
{
Console.WriteLine($"... {current} % ...");
}
public void Completed()
{
Console.WriteLine("... conversion completed");
}
}
IConverterListener listener = new ConverterListener();
Contracts.Func<ConverterSettings> settingsFactory = () => new ConverterSettings
{
Listener = listener
};
using (Converter converter = new Converter("sample.docx", settingsFactory))
{
PdfConvertOptions options = new PdfConvertOptions();
converter.Convert("converted.pdf", options);
}
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