mvSetTrackLayer(3dm)					  mvSetTrackLayer(3dm)

NAME    [Toc]    [Back]

     mvGetTrackLayer, mvSetTrackLayer -	set/get	the layer of a track

SYNOPSIS    [Toc]    [Back]

     #include <dmedia/moviefile.h>

     DMstatus mvSetTrackLayer( MVid track, int layer );
     int mvGetTrackLayer( MVid track );

DESCRIPTION    [Toc]    [Back]

     The ``layer'' value (a signed integer) of a track determines its
     rendering order with respect to other tracks.  For	visual tracks (e.g.
     image tracks), tracks with	smaller	(ie, more negative) ``layer'' value
     are rendered on top of (possibly obscuring) tracks	with bigger (ie, more
     positive) ``layer'' value.	 For aural tracks (e.g.	audio tracks), this
     value is ignored during rendering.


     If	a there	is more	than one track in a single layer, the tracks are
     rendered in an order determined by	the track index	(see
     mvFindTrackByIndex(3dm)).	When new tracks	are created, by	default, they
     are assigned to layer 0.

     mvSetTrackLayer sets the layer value of the track to be layer.

     mvGetTrackLayer returns the layer value of	the track.

SEE ALSO    [Toc]    [Back]

     mvRenderToOpenGL(3dm).


									PPPPaaaaggggeeee 1111