Correct return value of “WindowProc” in a Win32 application

Question

In MSDN\'s Win32-Api documentation (at http://msdn.microsoft.com/en-us/library/ms633573%28VS.85%29.aspx) on the WindowProc, it states: The return value is t

Answer 1

Michael's answer answers the question perfectly, but just for reference, the usual return value will always be 0. For most messages it means that your application has processed the message. But always consult the MSDN page for the actual message to know for sure.