Path: utzoo!attcan!uunet!mcsun!ukc!strath-cs!cs.glasgow.ac.uk!sinclair
From: sinclair@cs.glasgow.ac.uk (Duncan Sinclair)
Newsgroups: comp.windows.x
Subject: Title bar flicker fix for XTerm
Summary: How to stop a flickering title bar.
Keywords: XTerm patch flicker title bar
Message-ID: <6459@vanuata.cs.glasgow.ac.uk>
Date: 2 Oct 90 13:03:48 GMT
Organization: Computing Sci, Glasgow Univ, Scotland
Lines: 58

Here's a small patch for xterm.

Using tcsh, I set re-set the title of xterm before each shell prompt,
so that it states my current working directory.  This ensures that my
title is up to date, no matter where I am, or what I'm doing.

But what would really bug me is that the most of the time, the
update would not be necessary, and would cause an unsightly flicker
of the title bar.

I hacked xterm where it set the title, so that it would only
set the new title if it had actually changed.

It should also work for the icon name, but I never change that,
so I don't know if it does.

There may be a more correct way of doing this, but it works for me.

Standard disclaimers apply.


           Duncan Sinclair.

----------------
To apply, cd into the xterm source directory (<mumble>/mit/clients/xterm),
and run `patch <this-file'.
You can build xterm seperate from the rest of the X source using xmkmf.

Patch begins...

*** misc.c.keep	Tue Mar 20 10:19:19 1990
--- misc.c	Mon Jul 30 11:11:07 1990
***************
*** 601,607 ****
--- 601,615 ----
  {
  	extern Widget toplevel;
  	Arg args[1];
+ /* Start changes added 30/7/90 by D. Sinclair (sinclair@cs.glasgow.ac.uk)
+ 	char *buf;
  
+ /* If the attribute isn't going to change, then don't bother... */
+ /* This stops my title bar flickering every time I hit return.  */
+ 	XtSetArg( args[0], attribute, &buf );
+ 	XtGetValues( toplevel, args, 1 );
+ 	if (strncmp((char *)value,buf,511) == 0) return;
+ /* Changes end.  */
  	XtSetArg( args[0], attribute, value );
  	XtSetValues( toplevel, args, 1 );
  }

Patch ends...

-- 
Duncan Sinclair                     |  Try one    sinclair@cs.glasgow.ac.uk
Computing Science Research Student  |  of these:  sinclair@uk.ac.glasgow.cs
University of Glasgow               |..!mcsun!ukc!uk.ac.glasgow.cs!sinclair
Quote: "It takes a smart man to know when he's stupid." -- Barney Rubble