Increasing the hit size of a button or control

I read in the creation of the Photoshop app, the size of the buttons was a potential concern. How did you increase the size of the hit box, without increasing the size of the image? I am hoping for a property to set on creation so I can use a transparent PNG file, and override the default hit box with a larger one.

mike hovland [import]uid: 5317 topic_id: 584 reply_id: 300584[/import]

I’ve been placing the smaller “button” images behind a larger rectangle (80x80) with, for example, “button1.alpha = (0.01)” as the button; while testing, I change the button1.alpha to 0.1, which lets me see a very lightly tinted rectangle so that I can see where the button hit areas actually are.

– Walt Sterdan [import]uid: 4329 topic_id: 584 reply_id: 1139[/import]