how to check installed application in iphone device in ios SDK 4.0 [duplicate]

This question already has answers here: Closed 12 years ago.

Possible Duplicate:

How to know the apps in开发者_Python百科stalled in iPhone

Hi... I am developing an application in which i need to find the apps which are already installed in iphone device such as Skype, facebook. I need to check it using objective -c ( snow leopard 10.6.2).

Thanks in advance ..

---

You can't. I'm not sure if there even is a Private API....