Catching User Input in C# COM Client

Question

Using VS2003 (.Net 1.1) We have an MFC MDI application that spawns a C# window as a COM client.

We need to catch all user input within the application and we're currently using CWinApp::PreTranslateMessage() to catch the commands headed to the MFC windows but this obviously doesn't catch the messages headed to the C# window.

What is the best way of catching all user input within the C# client?

Answer 1

Do you control the C# window? If so, C# forms have a WndProc method that you can override and filter the messages there.

If this where a standard WinForms app, you could add a handler to Application.AddMessageFilter to create a message hook inside C#. (See my post here.) I'm not sure this would work given the form is inside an MFC app.