You can attach an animation sequence to be used when the user chooses the control or drops an object on it.
In order to have an animation sequence, a control must:
Be type icon
Have a PUSH_ACTION or DROP_ACTION
Specify the animation sequence using the ANIMATION component:
ANIMATION animation_name { icon_image [delay] icon_image [delay] ... }
where delay is the time delay between animation icons, in milliseconds.
Add the PUSH_ANIMATION and/or DROP_ANIMATION fields to the control definition. The value is the name of the ANIMATION sequence.
For example, the following lines animate a control that starts the BestEditor application. The time delay between icons is 300 milliseconds. The example assumes you've created icon files frame1, frame2, etc.
CONTROL BestEditor { ... PUSH_ANIMATION BestEdAnimation ... }
ANIMATION BestEdAnimation { frame1 300 frame2 ... }