MDI and dialog messages

Hi.
I have created an app in Winapi, using resources.
I now want to change this into an MDI app.
It seems i have to recreate the windows using CreateWindow()...Is there no way i can keep the resources? It would save me alot of work..

Also, is there a way to catch dialog messages in windows created from CreateWindow()?

Well, what kind of resources are you using? Menus and Dialogs? And you're saying you want each new opened document to have these resources, correct?

Yes. I now accomplish this by subclassing all objects on my forms..It would save work if it was handled automatically :D ..