NAME
	  fglEdgeFlag, fglEdgeFlagv - flag edges as either boundary or
	  nonboundary


     FORTRAN SPECIFICATION
	  SUBROUTINE fglEdgeFlag( LOGICAL*1 flag )


     PARAMETERS
	  flag	Specifies the current edge flag	value, either GL_TRUE
		or GL_FALSE. The initial value is GL_TRUE.

     FORTRAN SPECIFICATION
	  SUBROUTINE fglEdgeFlagv( CHARACTER*8 flag )


     PARAMETERS
	  flag Specifies a pointer to an array that contains a single
	       boolean element,	which replaces the current edge	flag
	       value.

     DESCRIPTION
	  Each vertex of a polygon, separate triangle, or separate
	  quadrilateral	specified between a fglBegin/fglEnd pair is
	  marked as the	start of either	a boundary or nonboundary
	  edge.	 If the	current	edge flag is true when the vertex is
	  specified, the vertex	is marked as the start of a boundary
	  edge.	 Otherwise, the	vertex is marked as the	start of a
	  nonboundary edge.  fglEdgeFlag sets the edge flag bit	to
	  GL_TRUE if flag is GL_TRUE, and to GL_FALSE otherwise.

	  The vertices of connected triangles and connected
	  quadrilaterals are always marked as boundary,	regardless of
	  the value of the edge	flag.

	  Boundary and nonboundary edge	flags on vertices are
	  significant only if GL_POLYGON_MODE is set to	GL_POINT or
	  GL_LINE.  See	fglPolygonMode.

     NOTES
	  The current edge flag	can be updated at any time.  In
	  particular, fglEdgeFlag can be called	between	a call to
	  fglBegin and the corresponding call to fglEnd.

     ASSOCIATED	GETS
	  fglGet with argument GL_EDGE_FLAG

     SEE ALSO
	  fglBegin, fglEdgeFlagPointer,	fglPolygonMode