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Re: Line mode

From: Mike Aubury
Subject: Re: Line mode
Date: Sat, 31 Jan 2004 12:58:56 +0000

Any pointers for doing that ?

On Saturday 31 January 2004 12:44 pm, Thomas Dickey wrote:
> On Sat, 31 Jan 2004, Mike Aubury wrote:
> > If I run a program with TERM=vt100 and have some display in screen mode,
> > then switch to line mode, the screen mode display is scrolled up and my
> > line mode display is put at the bottom..
> >
> > If I run the same program with TERM=xterm, the screen mode display
> > disappears and is replaced by a copy of the screen *before* the screen
> > mode was initiated and the display is put at the bottom.
> >
> > What terminfo/termcap setting is used to specify this latter behaviour ?
> > (And is there anyway to turn it off - so I get the display like
> > TERM=vt100 when using xterm without having to change the terminfo/termcap
> > entry!)
> That's the xterm alternate screen feature.  It is not explicitly part of
> terminfo/termcap, but by convention is part of the smcup/rmcup (ti/te)
> strings.  Most terminals (other than xterm and rxvt) don't have this
> feature.
> For ncurses (and possibly other terminfo-based curses implementations),
> it's possible to modify the in-memory copy of the terminfo after calling
> initscr() or newterm().  I do this in dialog to suppress screen flicker
> when running several instances of the executable.  Otherwise (other than
> selecting a $TERM which doesn't have this feature), I don't know of a
> standard way to suppress it.

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