Name: PGQID Purpose: inquire current device identifier Category: GRAPHICS File: pgplot.src Author: T.J. Pearson Use: see description below. Description: SUBROUTINE PGQID (ID) INTEGER ID This subroutine returns the identifier of the currently selected device, or 0 if no device is selected. The identifier is assigned when PGOPEN is called to open the device, and may be used as an argument to PGSLCT. Each open device has a different identifier. [This routine was added to PGPLOT in Version 5.1.0.] Argument: ID (output) : the identifier of the current device, or 0 if no device is currently selected. Updates: Oct 16, 1998: JPT automatically extracted from source.