Observing Push controls with JS

[peeddrroo]

Hi

I am trying to observe Push buttons inside a JS script.
For instance if I try to observe the Shift button, I would go

Code: Select all

  var api = new LiveAPI(sample_callback, "control_surfaces 1");
  shift_button_id = api.call("get_control_by_name", "Shift_Button");

which returns a string with a (negative) id number.
But when I try to assign this id number to a new object like that :

Code: Select all

var shift_button_api = new LiveAPI();
shift_button_api.id = shift_button_id;

I get the following error :
jsliveapi: get path: error calculating the path

it seems that jsliveapi is trying to transform the id for the control into a path, but it can't.

I tried to use the technique in this thread (using a path such as

Code: Select all

control_surfaces 0 controls 92

)
but it doesn't work.

Anybody got an idea of how I could achieve this ?

[Trevor being Trevor]

Briefly looking over your post I am not sure, but when I run into that sort of problem I usually go back to the live.path, live.object and live.observer objects inside of Max. I set those up with print objects and send messages like getinfo and getchildren etc. Usually, between that and Live Object Model documentation I can get a good idea of what I need to do to get it working in JavaScript. Hope you get to the bottom of it!

[[jur]]

Hey Peeddrroo

Which Push firmware are you running? Because there's a problem with the current release version, at least with M4L where you can't observe a parameter WITHOUT first grabbing it.
No idea how JS works but maybe that's related?
That issue is solved in the current Push beta v1.1.20b1, though.