How to clip or mask a region

[justkevin]

Let's say I have a Sprite with lots of children. I want to define a rectangular region, outside of which the children aren't shown (imagine the rectangular region is like a window, and the sprite's children are everything outside the window). What's the best way to accomplish this?

[Smee]

Create a rectangle for the mask area, then set the 'mask' property of the Sprite to the rectangle.

[justkevin]

That's what I was looking for, thanks.