Name:         GRDTYP

Purpose:      decode graphics device type string

Category:     GRAPHICS

File:         pgplot.src

Author:       T.J. Pearson

Use:          see description below.

Description:

            INTEGER FUNCTION GRDTYP (TEXT)
      
       GRPCKG (internal routine): determine graphics device type code from
       type name. It compares the argument with the table of known device
       types in common.
      
       Argument:
      
       TEXT (input, character): device type name, eg 'PRINTRONIX'; the name
             may be abbreviated to uniqueness.
      
       Returns:
      
       GRDTYP (integer): the device type code, in the range 1 to
             GRTMAX, zero if the type name is not recognised, or -1
             if the type name is ambiguous.

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