Run applescript when airtunes speaker selected in iTunes

Question

Hi,
I have a project that involves creating a whole house audio system using airport expresses and an iphone.
So far so good, best and most cost effective solution.
As I have an AppleTV I want to leverage it as a place to stream through my A/V receiver. This requires me to manually turn on the receiver, select the 'B' speaker output of the receiver (which connects to stereo speakers instead of the 5.1 satellite speakers which are the 'A' speakers), select the correct input for the AppleTV etc etc.
I know its not that hard but if you are reading this then you too probably know the warm fuzzy feeling of it all working seemlessly (no comments on this line please......)
So here's the plan. When I select the "AppleTV" in the speaker menu at the bottom of iTunes (which appears when you have multiple airtunes speakers connected) I want it to run a script that will control a device that beams all of the signals to the A/V receiver to set it up correctly.
The device is probably another problem to tackle, most likely an arduino project in an arduino forum, but I need a script to initiate this that is triggered by the selection of the speaker in itunes.
Does this sound possible?
Dave

Answer 1

Hi Camelot,
I used the accessability inspector and got the following report on the airtunes speaker button:
<AXApplication: “iTunes”>
<AXWindow: “iTunes”>
<AXButton: “Apple Hifi (2)”>
Attributes:
AXRole: “AXButton”
AXRoleDescription: “button”
AXSubrole: “(null)”
AXDescription: “”
AXHelp: “Choose which speakers to use.”
AXEnabled: “true”
AXFocused: “false”
AXParent: “<AXWindow: “iTunes”>”
AXWindow: “<AXWindow: “iTunes”>”
AXTopLevelUIElement: “<AXWindow: “iTunes”>”
AXPosition: “x=1692 y=1104”
AXSize: “w=124 h=20”
AXTitle: “Apple Hifi (2)”
AXSortDirection: “(null)”
Actions:
AXPress - press
Can you point in the direction of creating a script to query if the speaker "Apple Hifi (2)" is active? My applescripting is at a basic level and i'd like to learn some more.
Thanks
Dave