How is the built-in controls made?

[Jan Sælid]

So...

If I understand this right the "Tab Panel" is just a button. And the face of 
the button is what changes.
Ok.
But...The "face"? What is the face made of? Polygons? Lines?

The reason I'm making a fuzz about this is that I would really like to make 
a button
that behaves like that, instead of making 2 to 10 buttons in a group. It 
saves space if you can make a button behave like that.
And I think it is much cleaner to have 1 object instead of a lot in a group. 
(just for references)
I don't like to use groups all the time, because I don't want to have to 
many objects in my stack.

Jan

>Jan,

>tab tab panel is a button that looks like a tab panel, it just looks  like, 
>when you press any of the options a simple menuPick message is  triggered 
>and the face of the button changes but no control is hidden  or displayed, 
>you must take care of those things your self. You can  hide/show groups or 
>traverse cards. It's just a nice button that  triggers menuPick message 
>like all "menu like" buttons.

>I don't think there's a huge inner working since all is done by  yourself, 
>you need to code your tab panel, all the IDE does is  provide you with nice 
>graphics and a pre-packed button.

>cheers
>andre