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CC:	
Subj:	Re: VMS Motif & Backgrounds

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Date: Thu, 26 Mar 1992 09:58 EST
From: "Cameron Caffee : W300F-2 : 222-6278" <CAFFEEC@leia.polaroid.com>
Subject: Re: VMS Motif & Backgrounds
To: info-vax@kl.sri.COM
X-Vms-Cc: CAFFEEC

I've had some success with substituting my own logo for the Digital one on
my workstation and have recently added a nice GIF file background to the
screen in addition to the personal logo.

I'd like to contribute what I have learned :

(1) personal logo
   
    The preferred approach to adding your logo is to implement the
    DECwindows application customization procedure called :

	sys$manager:DECW$PRIVATE_APPS_SETUP.COM

    There's a template file of the same name with the extension  
    ".TEMPLATE" located in sys$manager. 

    In this file you will find a well-commented set of symbols which
    control a number of customizations you may want to implement :

	custom logo screen
	location of bookreader files
	location of other app's files
	etc...

    The custom login logo is handled by the global symbol DECW$LOGINLOGO.

    While defining DECW$LOGIN_BACKGROUND yourself works - using the 
    DEC supplied template is recommended.


(2) GIF background

    I implemented the GIF background on the LOGIN screen by adding
    an execution of the XV utility prior to the running of my personal 
    logo program in the DCL procedure defined in DECW$LOGIN_BACKGROUND 
    as follows :


	XV -root -max -quit {GIF file spec}	! full screen picture

        		(or)			

        XV -root -rm 3 -quit {GIF file spec}	! multiple images to fill
                                                !   screen space

     This type of XV run places the image in the root window and terminates
     allowing any further processing in the DCL procedure to continue. In
     my case I then run my logo program that puts a box on the screen above
     the login box with the nodename, decnet address, etc.

For the record:

	VMS 5.4-3
	DECwindows MOTIF 1.0A

In my experimenting, I find that I must confine my GIF image to ones with
relatively few colors in order to avoid Color Map allocation errors that 
appear in my user session at login time. I agree with the prior messages
that suggest there must be a quota issue involved which can cause failure
of the logo procedure when the image is too complex.

I'd appreciate any ideas folks have to address the image complexity issue.

If there are any DECwindows/MOTIF folks out there who understand color maps
and can suggest what might be happening - I'd appreciate the information.


Regards,

Cameron

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| Cameron Caffee, Postmaster                         Polaroid Corporation |
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