(PHP 5 <= 5.3.0, PECL ming SVN)
SWFButton::addShape — Adds a shape to a button
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.
   Adds the given shape to the button. 
  
shapeAn SWFShape instance
flags
       The following flags are valid: 
       SWFBUTTON_UP, 
       SWFBUTTON_OVER, 
       SWFBUTTON_DOWN and
       SWFBUTTON_HIT.
      
       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. 
      
No value is returned.