fglEdgeFlagv man page on IRIX

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fglEdgeFlag(3G)		       OpenGL Reference		       fglEdgeFlag(3G)

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

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