NAME
	  DtIndexCount - Determines the	number of vertices in a	given
	  polygon, line	or list	of points.


     SYNOPSIS
	  #include <Dt.h>


	  int  DtIndexCount( long *indices )


     DESCRIPTION
	  DtIndexCount() returns the number of vertices	in a given
	  face,	line or	list or	points,	passed to this function	via
	  the pointer to indices.

	  For example, if

	       1 2 3 -1	4 5 6 7	-1

	  is stored in the indices parameter, and you want to
	  determine the	number of vertices in each face, this function
	  should be executed as	follows:

	       index = 0;
	       v1Cnt = DtIndexCount( &indices[ index ] )
	       index +=	v1Cnt +	1;
	       v2Cnt = DtIndexCount( &indices[ index ] );

	  The resulting	value of v1Cnt is 3 and	v2Cnt is 4.


     SEE ALSO
	  DtFaceCount(3W)


     FILES
	  Link with -lDtOMio