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Conference bulova::decw_jan-89_to_nov-90

Title:DECWINDOWS 26-JAN-89 to 29-NOV-90
Notice:See 1639.0 for VMS V5.3 kit; 2043.0 for 5.4 IFT kit
Moderator:STAR::VATNE
Created:Mon Oct 30 1989
Last Modified:Mon Dec 31 1990
Last Successful Update:Fri Jun 06 1997
Number of topics:3726
Total number of notes:19516

1421.0. "Decwindows--->Xwindows" by CESARE::TROMBOTTO (I'd think it over) Tue Sep 12 1989 05:11

	Hi ,
	
	I've a question coming from a customer;
	he developed an application  using Decwindows ( I mean UIL, etc.)
	and now he wants to port it in Xwindow environment.
	
	Is there available any tool to translate the UIL definition
	structure and the widget hierarchy , in a X oriented 
	definition (parent-child) and widget creation calls ??
	Or is there any guide ?

	Thanks for suggestions.
	
				Letizia
T.RTitleUserPersonal
Name		DateLines
1421.1SDSVAX::SWEENEYDigital Competency Center for Finance DC�F�Tue Sep 12 1989 08:4714
    Do you understand the difference between the DECwindows enviroment and
    the X Window System environment?
    
    Is the target environment for this port:
    
    (a) a system which only has Xlib ?
    (b) a system which has Xlib and the X toolkit intrinsics ?
    (c) a system which has Xlib, X toolkit intrinsics, and is a potential
        for porting the Motif toolkit ?
    (d) something else ?
    
    Xlib is the client's low level programming interface to functions of
    the X Window System.
1421.2environmentCESARE::TROMBOTTOI'd think it overTue Sep 12 1989 11:235
    The target system has Xlib, and X toolkit intrinsics.
    
    Sorry if I didn't specify it before.
1421.3SDSVAX::SWEENEYDigital Competency Ctr/FinanceTue Sep 12 1989 15:2913
    If the target environment has X tookit instrisics, the choices would
    appear to be:
    
    (a) the customer removes the UIL/DRM calls and replaces them with
    XtCreateWidget (XtSetArg, XtAddCallbacks, XtManageChild, etc.) and...
    
    (b) implements equivalent widgets to the DECwindows widgets he's
    currently using (or obtain public domain equivalents)
    
    _or_
    
    ports MOTIF to the target environment
1421.4Sombody open the window please......KASINO::TALLETTJust one more bug to fix...Wed Sep 13 1989 04:3029
    RE: .-1
    
    	(b) is actually just "re-implement the DECwindows toolkit"
    
    	Gee, aren't we doing a wonderful job with all this openness.
    	I tried to get hold of DECwindows widget sources from OSF a
    	while back and discovered that it was virtually impossible.
    	(Yes, I should have gone to the product manager and didn't, I know)
    	My point is, these first customer's experiences with porting from
    	DECwindows to other platforms are important! They are the ones
    	that will get quoted in the press and will stick in the minds of
    	the MIS managers, wondering how portable X-windows really is.
    	HP is already beating on us that they have Motif already so
    	don't go off and use DECwindows (I don't know how true this is,
    	I know they originated lots of it but I bet they don't have
    	everything that OSF will offer - eg UIL).
    
    	Why don't we dole out the Dwt sources to all and sundry? I anyhow
    	heard that they will be out on microfiche soon. (or was that FUD).
    
    	Sorry to flame, and I know its not as easy as I make out, but I
    	think in a case like this we should come to the rescue of the
    	customer. (He did buy DEC after all - silly him).
    
    Regards,
    Paul Tallett,
    CEC Karlsruhe
    West Germany
1421.5patienceCSC32::B_WACKERWed Sep 13 1989 11:495
I think you need to tell your customer that there aren't any 
implemented standards yet.  Plans include Motif and XUI neither of 
which are available together yet.  Wait till the baby's born before 
you start to criticize it!