(PHP 5 < 5.3.0, PECL ming SVN)
SWFSprite::add — Adds an object to a sprite
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swfsprite::add() adds a swfshape(), a swfbutton(), a swftext(), a swfaction() or a swfsprite() object.
For displayable types (swfshape(), swfbutton(), swftext(), swfaction() or swfsprite()), this returns a handle to the object in a display list.
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