Re: color_set

[Thomas Dickey]

On Tue, 24 Feb 2009, Heracles wrote:

> Ok, so are you saying that when you use color_set, the change applies to any
> subsequent text added to any window?

that seems accurate (I have a test-case for it - noting that it's for
color_set, not wcolor_set, there's always the possibility of a bug)

> If so, suppose we have the case where we invoke:
>
> color_set(1,NULL);
> wcolor_set(somewin, 3, NULL);
>
>
> What would be the subsequent output for this call:
> waddstr(somewin, "Which color am I");

looks like it'd be pair-3 (whatever that happens to correspond to)

> Provided you ignore syntax errors and other such micelany.
>
>
>
>
> Thomas Dickey-2 wrote:
> > On Tue, Feb 24, 2009 at 09:05:27AM -0800, Heracles wrote:
> > > I would like someone to clarify the semantics of color_set.  The man
> > > pages
> >
> >        int color_set(short color_pair_number, void* opts);
> >
> > > say that color_set takes a color_pair_number argument which is apparently
> > > an
> > > index into a collection of color pairs, and a null pointer as the opts.
> >
> > It's not a collection per se, but the "same" color table as
> > some applications use by OR'ing the color pair into a chtype.
> >
> > However, color_set takes a short for the pair number, while
> > the field in chtype is (for ncurses) only 8 bits).
> >
> > The type is a short (signed) since that corresponds to the
> > type used for numbers in compiled terminfo.
> >
> > > To what window(s) do(es) the changes apply when using this method versus
> > > the
> > > wcolor_set method?
> >
> > stdscr
> >
> > (I see the manpage has a typo - it refers to the given window, which
> > would be for wcolor_set).
> >
> > > How do you establish the collection to be indexed in the first place?
> >
> > --
> > Thomas E. Dickey <address@hidden>
> > http://invisible-island.net
> > ftp://invisible-island.net
> >
> >
> > _______________________________________________
> > Bug-ncurses mailing list
> > address@hidden
> > http://lists.gnu.org/mailman/listinfo/bug-ncurses
>
> --
> View this message in context: 
> http://www.nabble.com/color_set-tp22185141p22192074.html
> Sent from the Gnu - Ncurses mailing list archive at Nabble.com.
>
>
>
> _______________________________________________
> Bug-ncurses mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/bug-ncurses

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