How to make BW mov to be alpha?

newbie here, and might be very simple question... but I can't seem to find answer here..
I have CG artist render me plain black and white mov (not pre-multiplied alpha).
I want to use the mov as alpha for other mov so I can mask out moving object.
How can I make the BW mov as being alpha?

Use the SwitchMatte node to copy a channel from the b&w movie
into the alpha channel of the other movie.

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[CODE]
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
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[/CODE]

Make clicking disabled when the helicopter is moving. So
right after a click, disable clicking.
There are many coding possibilities for doing so. Make your
own, then add the code below after it:
MoveEffect.addEventListener("effectEnd",
callHandlerFunctionOfSomeSort);
private function callHandlerFunctionOfSomeSort(e:Event):void
// In this section, re-enable it using your own method.
Good luck!

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JMichael wrote:
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Message was edited by: Daniel Filice
Message was edited by: Daniel Filice

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M

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[email protected]

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How to make BW mov to be alpha?

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