void addShape(SWFShape shape,
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.
Adds the given shape to the button.
The following flags are valid:
SWFBUTTON_HIT isn't ever displayed, it defines
the hit region for the button. That is, everywhere the hit shape would
be drawn is considered a "touchable" part of the button.