Painting effect

I want to achieve painting effect in flash.

There will be a brush attached to cursor and once I click&hold the mouse button while moving it on the canvas it will be painting a predetermined image, as if there is a mask covering an image and as I "delete" the mask, image underneath starts to appear.

Any idea how I can develop such thing ?

Here's as2 painting tutorial: http://lift.co/flash/archive/mouse/05_paint/index.html

Here's as3 tutorial for what you're trying to do?: http://jonathannicol.com/blog/2009/0...-mouse-in-as3/

You should be able to look at the as3 reveal code and apply it to the as2 paint code.