How can I run my own application after another app running in Cocoa?

For example .

My app is a iTunes plugin , I want to launch it after iTunes start-up.

(Now I can run iTunes i开发者_开发问答n my application use AppleScript.)

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To run an executable from your application, you can use NSTask class. To run a plug-in from iTunes, you need to indicate your plug-in to iTunes and iTunes will run your application for you. Thus, you need iTunes Visual plug-ins SDK.