.h includes the titlebar.
.ch is the height of the client area (ie. what you can draw or place controls on) of the dialog.
Edit: I just noticed you said menubar. As far as I know there's no way of doing what you're looking for, but I still don't think .ch should return the menubar height as it's not in the client area.
Last edited by hixxy; 04/04/07 08:20 PM.