Conference bulova::decw_jan-89_to_nov-90

1583.0. "Help with DECwindows needed" by AUSSIE::LEONG (Geoff, CSS Design Engineer, Sydney Australia, sna-2) Tue Oct 17 1989 02:27

    
    
    Hopefully this problem will not insult anyones intelligence. I do,
    nonetheless, need some help.
    
    I am running a VMS version 5.2 LAVc. some nodes are DECwindows,
    some are VWS.
    
    The DECwindows version I installed came with the VMS version 5.2
    kit.
    
    On one occasion I tried to define DECW$DISPLAY to be node::0
    
    On another occasion, I try the following:
    
    		SET DISPLAY/NODE=node
    
    On another occasion, I try 
    
    		SET DISPLAY/NOPERM
    
    On each occasion, I receive the following error:
    
    		%SYSTEM-F-IDEVNAM, invalid device name
    		-SET-W-OPENOUT, error opening node::0 as output
    
    
    Hopefully someone can shed some light here.
    
    Going through the notes file, I see that an object called X$X0 should
    exist. However, we have 5.1 systems in this site and that object
    does not exist in the database.
    
    
    The following are the DECW* logicals defined.
    
    
(LNM$PROCESS_TABLE)

  "DECW$DISPLAY" = "DMX11::0"

(LNM$JOB_804C0750)

  "DECW$DISPLAY" = "WSA1:"

(LNM$GROUP_000100)

(LNM$SYSTEM_TABLE)

  "DECW$DECTERM_MAILBOX_DMX11::0.0" = "_MBA131:"
  "DECW$DISPLAY" = "DMX11::0"
  "DECW$SERVER_MBX_0000ED74_0" = "MBA25:"

(DECW$LOGICAL_NAMES)

  "DECW$BOOK" = "SYS$COMMON:[DECW$BOOK]"
  "DECW$EXAMPLES" = "SYS$COMMON:[SYSHLP.EXAMPLES.DECW]"
  "DECW$INCLUDE" = "SYS$COMMON:[DECW$INCLUDE]"
  "DECW$KEYMAP" = "SYS$COMMON:[SYS$KEYMAP.DECW.USER]"
	= "SYS$COMMON:[SYS$KEYMAP.DECW.SYSTEM]"
  "DECW$SERVER_TRANSPORTS" = "DECNET"
	= "LOCAL"
  "DECW$STARVUEECOM" = "SYS$MANAGER:DECW$STARTVUE.COM"
  "DECW$SYSTEM_DEFAULTS" = "SYS$COMMON:[DECW$DEFAULTS.USER]"
	= "SYS$COMMON:[DECW$DEFAULTS.SYSTEM]"
	= "SYS$LIBRARY:"
  "DECW$USER_DEFAULTS" = "SYS$LOGIN:"
  "DECW$WINMGREXE" = "SYS$SYSTEM:DECW$WINMGR.EXE"
  "DECW$XLIBERRDB" = "SYS$MESSAGE:DECW$XLIBERRDB.DAT"
    

    
    
    The system configuration:
    
    	boot node  VAX 8700
        my station VAXstation 3100
    
    

    Remove all of your DECW$DISPLAY definitions.  Then, without defining
    anything with node::0, just do:
    $ SET DISPLAY/CREATE/NODE=your_workstation
    That should be all you need.

The set display command defines decw$display as a job logical.  Since
a logical name translation takes the process logical first, the
manual definition takes precedence.  That's why it keeps complaining
about node::0 even after you have done a set display.  To eliminate
the problem, type DEASSIGN DECW$DISPLAY

I am not sure about the cause for the first failure.

Dick

    The solution in 1. is right.  The problem is that when you say SET
    DISPLAY, the SETDISPLAY processor is expecting DECW$DISPLAY to point
    to a WS device.  If it does not, SET can't change its characteristics.
    To create a new WS device and define DECW$DISPLAY to point to it you
    say SET DISPLAY/CREATE as .1 explained.

    Note that with V5.3 that all of this /NOPERM garbage and reuse of WSA
    devices goes away.  The WSA devices are now created with either a
    user,super or exec characteristic that makes them behave like logical
    names in terms of livespan.  In other words, SET DISP/CREATE/NODE=foo
    will create a super mode WSA device that goes away automatically when
    you log out.
    
    

    
    Jake,
    
    Did anyone  ever  get a chance to look at adding the code to $GETJPI to
    allow a program  to  get the /node= and etc.  parameters?  I admit that
    the user/super/exec change makes  this  less  important,  but enquiring
    minds want to know....
    
    Thanks
    
    James
    

No, the only thing is the undocumented hack SHOW DISP/SYMBOLS.

jake