[PD] connecting pd-gui to pd

[Miller Puckette]

I believe libpd already has this capability (I've been using it but am not
sure my changes made it upstream).  I'm planning to put this in Pd vanilla
for the next major release but since I'm on the road till end of December
this won't be ready for a while (I have to have access to my doddering old
machines at home to test things on various platdoforms to make a release).

In the meantime, try writing an extern that does what libpd does:

int libpd_start_gui(const char *libdir)
{
    t_canvas *x;
    for (x = pd_getcanvaslist(); x; x = x->gl_next)
        canvas_vis(x, 0);
    sys_nogui = 0;
    if (sys_startgui(libdir))
        return -1;
    for (x = pd_getcanvaslist(); x; x = x->gl_next)
        if (strcmp(x->gl_name->s_name, "_float_template") &&
            strcmp(x->gl_name->s_name, "_float_array_template") &&
                strcmp(x->gl_name->s_name, "_text_template"))
    {
                    glist_maybevis(x);
                    canvas_vis(x, 1);
    }
    return 0;
}

void sys_stopgui( void);

void libpd_stop_gui( void)
{
    t_canvas *x;
    for (x = pd_getcanvaslist(); x; x = x->gl_next)
        canvas_vis(x, 0);
    sys_vgui("%s", "exit\n");
    sys_stopgui();
}

cheers
Miller

On Thu, Sep 15, 2016 at 08:48:06AM +1000, Jeremiah Rose wrote:
> IOhannes, sorry yes I meant "patch" as in a software engineering patch
> rather than a PD patch. Thanks for the info, I will get in touch with
> Miller and see if he still thinks it's a good idea.
> 
> Jonathan, yes that's exactly it.
> On 15/09/2016 4:21 AM, "Jonathan Wilkes via Pd-list" <pd-list at lists.iem.at>
> wrote:
> 
> > Hi Jeremiah,
> > I'm not sure what kind of feature you're describing.  Is it that you want
> > a long running Pd instance
> > on the rpi with the ability to connect/disconnect a _single_ GUI at will?
> >
> >
> >
> >
> > On Tuesday, September 13, 2016 6:46 AM, IOhannes m zmölnig <
> > zmoelnig at iem.at> wrote:
> >
> >
> > On 09/13/2016 09:24 AM, Jeremiah Rose wrote:
> > > Do you think it's liakely that such a patch would be accepted by the
> > > maintainer?
> >
> > which maintainer?
> >
> > what i'm talking about is a middleware software (a standalone proxy),
> > that handles the connections from both Pd-core and Pd-gui.
> > this is possible.
> > it has already been done (in a different context  -"peer data").
> > back then i implemented the middleware as a Pd-patch.
> > there is no maintainer who could accept anything.
> >
> > if you are talking about modifying ("patching") the Pd-core so it would
> > allow dis/connections from an independently started Pd-GUI, then I am
> > the wrong person to ask: miller reads this list, so you could ask him
> > directly.
> >
> > btw, i seem to remember that at miller's last visit to Graz we talked
> > about this very feature and he seemed to be in favour.
> > so i guess, if a patch against Pd-core follows the coding style and is
> > "not very" intrusive, chances are high that it might get included.
> >
> > gmards
> >
> > IOhannes
> >
> >
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