Control iTunes from a cocoa application

I am developing a mac application that involves audio playback. I would like to pause other audio players when our playback starts.

how can I

1) detect that itunes is running

2) detect that itunes is currently playing

3) pause itunes

4) resume itunes when I am done

also:

5) Is the a way to pause other types of media playback as well? audio and video in the in t开发者_StackOverflow社区he browser for example?

You can do that with the following code which is using ScriptingBridge:

#import "iTunes.h"
#import "Cocoa/Cocoa.h"

int main()
{
  iTunesApplication* iTunes = [SBApplication applicationWithBundleIdentifier:@"com.apple.iTunes"];

  // check if iTunes is running (Q1)
  if ([iTunes isRunning])
  {
    // pause iTunes if it is currently playing (Q2 and Q3)
    if (iTunesEPlSPlaying == [iTunes playerState])
      [iTunes playpause];

    // do your stuff

    // start playing again (Q4)
    [iTunes playpause];
  }
  return 0;
}

The file iTunes.h is generated by running sdef /Applications/iTunes.app | sdp -fh --basename iTunes from a commandline. The error unknown type name "tdta" can be ignored.

You also need to add ScriptingBridge.framework to the linked frameworks.

Here is also a link to the ScriptingBridge documentation.

1) detect that itunes is running

NSRunningApplication or Process Manager.

2) detect that itunes is currently playing
3) pause itunes
4) resume itunes when I am done

Scripting Bridge.

5) Is the a way to pause other types of media playback as well?

That depends on the application.

audio and video in the in the browser for example?

No.

Maybe creating an AppleScript can solve the problem?

Check this out:

http://dougscripts.com/itunes/

or some command line scripts?:

http://www.macosxhints.com/article.php?story=20011108211802830