On Wed, 18 Feb 2004, B. Bogart wrote:
Hey all,
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);
For the button widget, a callback gets defined (with the sys_vgui() command). This callback is passed as an argument to the widget creation with "button".
This means, everytime the button is pressed, "pd [concat button%p b \;]" is executed, which sends "b" to a receiver symbol.
All a bit complicated :)
Guenter
I was originally going to get the external to ouput the symbol that is the same as the menu label selected, but recently working a little more with symbols in PD it seems to be quite a anoyance to test if symbols match (I've been using index from zexy) so I'm now thinking the external will just output the index value of the message. I think it would be handy at times to be able to use the output of the popup as a message directly to some other object, without having to test with an array of selects. Anyone have an opinion on the matter?
I'm hoping to get started writing the [text] external soon for nice text editing...
Thanks Ben
PD-dev mailing list PD-dev@iem.at http://iem.at/cgi-bin/mailman/listinfo/pd-dev