It's all explained in the picture. How do I do that?
(http://www.2dadventure.com/ags/primer.PNG)
never mind. The game is finished.
in the interface_click function you need to check if a certain command button has been clicked (let's say 'look at') and use SetLabelText() to set the status line's text to 'look at'.
take a look at the LEC room of the demo game and check out the lucasarts gui thread in this forum, such kind of questions have already been answered a lot.