can we access iphone calendar with ipohone sdk?

is it possible to access iphone calendar with coding like c开发者_JS百科an we access its entries or put new entries to it with sdk?If yes then which version of sdk have this feature ? good answers will be appreciated

The EventKit framework was added in iOS 4.0. It lets you access and modify calendar event information. You might also want to take a look at the EventKitUI framework.

Also mark EventKit framework as optional/weak in Xcode's "Link Binary with Libraries" section, as in here.