Name:         grtter

Purpose:      test whether device is user's terminal (Sun/Convex-UNIX)

Category:     GRAPHICS

File:         pgplot.src

Author:       T.J. Pearson

Use:          see description below.

Description:

            SUBROUTINE GRTTER(STRING, SAME)
            CHARACTER*(*) STRING
            LOGICAL SAME
      
       Return a logical flag indicating whether the supplied device
       name is a name for the user's controlling terminal or not.
       (Some PGPLOT programs wish to take special action if they are
       plotting on the user's terminal.)
      
       Arguments:
        STRING : (input) the device name to be tested.
        SAME   : (output) .TRUE. is STRING contains a valid name for the
                 user's terminal; .FALSE. otherwise.

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