How can I discover what apps are installed on OS X using Objective C or Macruby?

Question

could you tell me please - which object and which method can i use to fetch information about installed applications on OSX with objective c or macruby?

Answer 1

You can just call the Apple command-line tool system_profiler, e.g.

% system_profiler SPApplicationsDataType

For C or Objective-C you could use system() to do this.

For more info:

% man system

% man system_profiler