I'm writing a .NET wrapper around an old MFC-based library we have. It's based around a class that sends notifications using window messages; it has a function that lets the user pass in a handle to a window, and that window will receive the messages.
I could just require the users of my wrapper to subclass Control and pass their control's handle in order to receive messages, but that's horrible. I want my wrapper class to have events which fire whenever the old library sends a message, and then I can do the decoding of the message into something sensible. But, I don't want my wrapper class to have to be a control.
Is there a way for me to create a 'dummy' window handle, and receive the messages sent to that handle, without creating a window?
There is a concept of MessageOnly Windows which can help you. You may create an internal message only window in your wrapper class and pass this handle to the old library.