Name:         groptx

Purpose:      open input/output text file [Unix]

Category:     GRAPHICS

File:         pgplot.src

Author:       T.J. Pearson

Use:          see description below.

Description:

            INTEGER FUNCTION GROPTX (UNIT, NAME, DEFNAM, MODE)
            INTEGER UNIT, MODE
            CHARACTER*(*) NAME, DEFNAM
      
       Input:
        UNIT : Fortran unit number to use
        NAME : name of file to create
        DEFNAM : default file name (used to fill in missing fields for VMS)
        MODE : 0 to open for reading, 1 to open for writing.
      
       Returns:
        0 => success; any other value => error.

Updates:      Oct 16, 1998: JPT automatically extracted from source.