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Re: Arg preserve_echo_area is ignored in redisplay_internal ()
From: |
Eli Zaretskii |
Subject: |
Re: Arg preserve_echo_area is ignored in redisplay_internal () |
Date: |
Fri, 08 Jan 2010 15:01:21 +0200 |
> From: Kenichi Handa <address@hidden>
> Date: Fri, 08 Jan 2010 21:34:22 +0900
>
> In xdisp.c, redisplay_internal has the arg
> preserve_echo_area but it is not used in that function.
> Does it mean that the arg is obsolete now, or that there's
> some bug in the function?
Neither. It's a provision for future development, as the commentary
says:
/* If PRESERVE_ECHO_AREA is nonzero, it means this redisplay is not in
response to any user action; therefore, we should preserve the echo
area. (Actually, our caller does that job.) Perhaps in the future
avoid recentering windows if it is not necessary; currently that
causes some problems. */