Name:         PGUPDT

Purpose:      update display

Category:     GRAPHICS

File:         pgplot.src

Author:       T.J. Pearson

Use:          see description below.

Description:

            SUBROUTINE PGUPDT
      
       Update the graphics display: flush any pending commands to the
       output device. This routine empties the buffer created by PGBBUF,
       but it does not alter the PGBBUF/PGEBUF counter. The routine should
       be called when it is essential that the display be completely up to
       date (before interaction with the user, for example) but it is not
       known if output is being buffered.
      
       Arguments: none

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