MACROMEDIA FLASH 8-EXTENDING FLASH Manual page 24

Extensible tools
The following functions are available in scripts that create extensible tools:
activate()
configureTool()
deactivate()
keyDown()
keyUp()
mouseDoubleClick()
mouseDown()
mouseMove()
mouseUp()
notifySettingsChanged()
setCursor()
activate()
Availability
Flash MX 2004.
Usage
function activate() {
// statements
}
Parameters
None.
Returns
Nothing.
Description
Function; called when the extensible tool becomes active (that is, when the tool is selected in
the Tools panel). Use this function to perform any initialization tasks the tool requires.
24 Top-Level Functions and Methods