Re: ncurses bugs the output of the program I call

[Thomas Dickey]

On Fri, 16 Sep 2011, LucasJA wrote:

> Thomas Dickey-2 wrote:
> > On Thu, 15 Sep 2011, LucasJA wrote:
> >
> > > Hello.
> > >
> > > I am developing a shell as a homework and I am using ncurses.
> > > I setup the ncurses for my shell. When I call the 'ps' program from my
> > > shell, it outputs the result incorrectly on the screen:
> >
> > You're probably not calling one of the functions which is used to
> > temporarily restore the terminal modes before invoking 'ps'.
> > For example, endwin (before) and refresh (after).
...
> If I temporarily leave the ncurses mode, call the 'ps' and return to ncurses
> mode (using endwin() then refresh()), the output of the ps is not shown on
> my shell, it is shown in the gnome-terminal (I can see the output after I
> close my shell program). I would like to see the output of it on my program.
>
> What can I do? Thanks.

The usual way to solve that problem is to use a pipe (using popen) for 
collecting the output of the "ps" (or whatever) program, and use ncurses 
to write the data to the screen.

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net