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Conference bulova::decwindows

Title:	DECWINDOWS
Notice:	DECwindows Motif V1.2-4 SSB kits: note 5519
Moderator:	GRIM::MESSENGER

Created:	Wed Nov 28 1990
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	5861
Total number of notes:	24081

5839.0. "Resource database formats On V1.0 & V1.2" by OSEC::DENNISON () Tue May 06 1997 11:45

    1. Does anyone know whether the layout to resource databases changed
       (both on disk and in memory) from MOTIF V1.0 and MOTIF V1.2?
    
    2. Does anyone know the significance to the replacement of the routine
       EnumerateDatabase on MOTIF V1.0 with the routine
       XrmEnumerateDatabase on MOTIF V1.2?
    
    
    	We have a system which is currently being ported from using MOTIF
    V1.0 to MOTIF V1.2. Our system replaces standard images such as
    DECW$LOGINOUT, DECW$SESSION and DECW$TRANSPORT_LOCAL. LOGINOUT and
    SESSION both make use of the routine EnumerateDatabase on V1.0. Running
    the images on a MOTIF V1.2 system returns a status showing a call to an
    obsolete routine. We can see from the sources for MOTIF that this
    routine has been replaced by XrmEnumerateDatabase.
    
    	The question is - even if our sotfware can contine to use
    EnumerateDatabase - did the format to resource databases
    (disk/memory) change significantly between V1.0 and V1.2?
    
    			Thanks for any help,
    
    				Ed. Dennison (7851 1608)
    
    
    			Any help would be much appreciated,
    
    				Ed. Dennison (7851 1608)

T.R Title User Personal
Name Date Lines

5839.1 GRIM::MESSENGER Bob Messenger Tue May 06 1997 12:21 19

T.R	Title	User	Personal Name	Date	Lines
5839.1		GRIM::MESSENGER	Bob Messenger	`Tue May 06 1997 12:21`	19
	DECwindows Motif V1.0 was based on X11 R4 while DECwindows Motif V1.2 was based on X11 R5. I'm not sure whether the internal structure of resource databases in memory changed between R4 and R5 but I wouldn't be surprised if it did. The structure on disk is the same: just a standard set of resource definitions. Of course the actual resource names and values changed in many cases, but the structure is still the same. I believe that what happened is that the OpenVMS version of Xlib provided an EnumerateDatabase function in DECwindows Motif V1.0 for use by our own applications, but it wasn't part of the X11 R4 standard. XrmEnumerateDatabase was added as a standard function in X11 R5, but it looks like the OpenVMS Xlib still provides EnumerateDatabase in V1.2 and later versions so older applications will continue to work. EnumerateDatabase is in the transfer vector but it's not a universal symbol, so to call it you'll need to link with the V1.0 or V1.1 version of Xlib. -- Bob

DECwindows Motif V1.0 was based on X11 R4 while DECwindows Motif V1.2 was
based on X11 R5.  I'm not sure whether the internal structure of resource
databases in memory changed between R4 and R5 but I wouldn't be surprised
if it did.  The structure on disk is the same: just a standard set of
resource definitions.  Of course the actual resource names and values
changed in many cases, but the structure is still the same.

I believe that what happened is that the OpenVMS version of Xlib provided
an EnumerateDatabase function in DECwindows Motif V1.0 for use by our own
applications, but it wasn't part of the X11 R4 standard. XrmEnumerateDatabase
was added as a standard function in X11 R5, but it looks like the OpenVMS
Xlib still provides EnumerateDatabase in V1.2 and later versions so older
applications will continue to work.

EnumerateDatabase is in the transfer vector but it's not a universal
symbol, so to call it you'll need to link with the V1.0 or V1.1 version of
Xlib.

				-- Bob