[PD-dev] How to send data from pd-gui to pd??

[guenter geiger]

On Thu, 19 Feb 2004, Krzysztof Czaja wrote:
> hi Ben (and Guenter?),
>
> in a short-term project you will probably find yourself on a safer
> side, since toxy is still very immature.
>
> Taking a longer-term view, however, I do not understand, why
> should anybody prefer writing and maintaining (esp. through Pd api
> changes) a few-hundred-or-more-line external, to a few lines of
> a simple Tcl code, which has to be embedded in that external,
> anyway.

Well, I can only reiterate that I am not really happy with the
approach that I have taken in these externals.

I didn't know about toxy at that time, if I had known, or if
toxy already existed,  probably I would not have changed them to use
native tcl/tk widgets.

Remember, most of the sliders, bangs, toggles etc that are in the
iemgui came from my external collection, so the only options
I had was making mine different or removing them completely.
I made them different in order to test the embedding of standard
widgets.

> At least, there are no fundamental stability, nor performance gains
> I can think of...

Absolutely right.

Guenter

>
> Krzysztof
>
> B. Bogart wrote:
> ...
> > I'm almost finished [popup], with a couple bugs and the biggest issue
> > being that I can't figure out how to pass data from the tk widget back
> > to pd.. (telling it what menu item was selected!) in GGEE button.c seems
> > to do the magic here, could someone explain whats really going on?
> >
> >    sprintf(buf,"button%p",x);
> >    x->x_sym = gensym(buf);
> >    pd_bind(&x->x_obj.ob_pd, x->x_sym);
> >
> >    sys_vgui("proc button_cb%x {} {\n pd [concat button%p b \\;]\n
> > }\n",x,x);
>
> defines a procedure to be configured into a button's -command.
> The proc, when invoked, sends a 'b' message to the object.
>
>
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