From:	MERC::"uunet!CRVAX.SRI.COM!RELAY-INFO-VAX" 26-JAN-1993 23:12:29.20
To:	info-vax@sri.com
CC:	
Subj:	Re: Tracking DECW$DISPLAY

On Jan 25,  3:02pm, Tigger wrote:
> Subject: Tracking DECW$DISPLAY
>Is there any way (such as a code to $GETDVI) to examine a _WSAn: device
>created with the SET DISPLAY command and determine what node it points
>to (ie the value of the /NODE qualifier to the SET DISPLAY)?
>
>Greg Orman
>greg@pomona.claremont.edu
>

        From DCL do the following (undocumented, of course):
                $ sh sym decw$*
                %DCL-W-UNDSYM, undefined symbol - check validity and spelling
                $ show display/symbol
 
                    Device:    WSA3:  [super]
                    Node:      HERMANN.BARRA.COM
                    Transport: TCPIP
                    Server:    0
                    Screen:    0
 
                $ sh symbol decw$*
                  DECW$DISPLAY_NODE == "HERMANN.BARRA.COM"
                  DECW$DISPLAY_SCREEN == "0"
                  DECW$DISPLAY_SERVER == "0"
                  DECW$DISPLAY_TRANSPORT == "TCPIP"

	So, rather than reading the output from a $show disp (ugh),
	you can examine the DECW$DISPLAY_NODE. 

	I think that there is something similar you can do with
	$GETDVI. I seem to remember John "Fast Eddie" McMahon
	mentioning something about this before. I'll see if I can
	find the information for doing this from an image.

Louis
       -------------------------------------------------------------------------
      / Louis Dunne                          /                                /
     /  VMS/UNIX Systems                    /  Internet:   louis@barra.com   /
    /                                      /   Phone:      +1 510 649-4229  / 
   /    BARRA, Inc.                       /    Fax:        +1 510 548-4374 /
  /     1995 University Ave., Suite 400  /                                /
 /      Berkeley, CA 94704              /                                /
-------------------------------------------------------------------------