Re: strange char echo

[Thomas Dickey]

On Thu, 5 Nov 2009, Scott Furry wrote:

> Two schools of thought....
> a) hardware
> b) software
>
> For a) assuming some kind of external comms - do you have some form of loop 
> back?
> I'm going to say this is probably unlikely and would be special case. 
> However, I have to throw it out.
>
> For b) when you did you initial build (assuming you built from source) did 
> you config using the flag "with_sp_funcs"?
> From the source see the configure file (line 9350 sets the flag 
> NCURSES_SP_FUNCS) and lib_echo.c (NCURSES_SP_FUNCS is used to enable the 
> build of the noecho function at line 77).

You're being misled by a trick with the ifdef's and define's: there's
always a "noecho", but the ifdef's provide a different name for the
function which accepts a SCREEN* parameter.  Since the bulk of the logic
in most cases is in the latter, the plain "noecho" looks like it's just
an add-on.

> Scott
>
>
>
>
> Bryan Christ wrote:
> > does anyone know what might cause characters to be echoed to the screen
> > even though noecho() was called at startup?
> >
> >
> >
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>
>
>
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--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net