Function:     GDI_GRCOL

Purpose:      Sets the color for a graphics plane.

Category:     DISPLAY

File:         gdilib.c

Author:       K.G. Begeman

Use:          INTEGER GDI_GRCOL( GDI_ID ,     Input      INTEGER
                                 PLANE,       Input      INTEGER
                                 RED ,        Input      REAL
                                 GREEN ,      Input      REAL
                                 BLUE )       Input      REAL

              GDI_GRCOL      Returns zero on succes, negative on error.
              GDI_ID         Display id as returned by GDI_OPEN.
              PLANE          Plane number (1, 2, 4, etc. ).
              RED            Red color intensity (0.0 .. 1.0).
              GREEN          Green color intensity (0.0 .. 1.0).
              BLUE           Blue color intensity (0.0 .. 1.0 ).

Updates:      Jan  3, 1991: KGB Document created.