listening to child window messages in win32

I have a blank window created by my own application in C++. What I do is I bring in another window of some entirely different application and make it a child window of this. It can by skype, firefox, anything.

What I want to do is I want to listen to the messages rec开发者_如何学运维eived by this new window that is now my child window. Unfortunately I don't get the messages through my own WndProc. It is probably doable through Hooks, is there any other simpler way of listening to the child window messages?

Thanks!

Since windows have thread affinity and since messages are delivered to windows, you need your code in the thread associated with the window. That implies hooks.