MACROMEDIA FLASH MX 2004-USING COMPONENTS Use Manual page 816

Example
The following handler displays a message in the Output panel when the object it's attached to
becomes invisible.
on(hide) {
trace("I've become invisible.");
}
See also
UIObject.reveal
UIObject.invalidate()
Availability
Flash Player 6 (6.0 79.0).
Edition
Flash MX 2004.
Usage
componentInstance.invalidate()
Parameters
None.
Returns
Nothing.
Description
Method; marks the object so it will be redrawn on the next frame interval.
This method is primarily useful to developers of new custom components. A custom component
is likely to support a number of operations that change the component's appearance.
Often, the best way to build a component is to centralize the logic for updating the component's
appearance in the
on the component to redraw it. (For information on defining a
invalidate()
see "Defining core functions" on page
All operations that change the component's appearance can call
redrawing the component themselves. This has some advantages: code isn't duplicated
unnecessarily, and multiple changes can easily be batched up into one redraw, instead of causing
multiple, redundant redraws.
Example
The following example marks the ProgressBar instance
pBar.invalidate();
816 Chapter 6: Components Dictionary
method. If the component has a
draw()
944.)
method, you can call
draw()
invalidate()
for redrawing:
pBar
method,
draw()
instead of