Function:     GDI_GRREGION

Purpose:      Lets user define a region in graphics planes.

Category:     DISPLAY

File:         gdilib.c

Author:       K.G. Begeman

Use:          INTEGER GDI_GRREGION( GDI_ID ,     Input      INTEGER
                                    PLANE )      Input      INTEGER

              GDI_GRREGION   Returns zero on succes, negative on error.
              GDI_ID         Display id as returned by GDI_OPEN.
              PLANE          Graphics plane.

Updates:      Jan  3, 1991: KGB Document created.