OSX Lion AppleScript : How to get current space # from mission control?

Question

I\'m trying to figure out how to get the current space # from mission control. Source would be helpful, but more helpful would be info on how to figure this out myself. I\

Answer 1

I've been poking around, and I came up with this: https://gist.github.com/1129406

Spaces have a nonsequential ID and a sequential index (0-based). You can get the ID in two ways:

• from public APIs (see get_space_id)
• from the private CGS API CGSGetWorkspace

You can set the current space by index using public APIs (though the notifications themselves are not publicly documented): see set_space_by_index

You can set the current space by ID using private the CGS API CGSSetWorkspace.

You cannot get the current space index directly. However, if you're always using the same set of nine spaces, you can rotate through them once using set_space_by_index, collect their IDs, and build a mapping. Then you will be able to get the current index from the ID.