I want to support UIInterfaceOrientationLandscapeRight and UIInterfaceOrientationLandscapeLeft only

how do I make sure that UIInterfaceOrientationPortraitRight and UIInterfaceOrientationPortraitLeft are not supported.

Basically I want my 开发者_Python百科application to be used ONLY in UIInterfaceOrientationLandscapeRight and UIInterfaceOrientationLandscapeLeft

I edited the Info.plist file

<string>MainWindow</string>
 <key>UISupportedInterfaceOrientations</key>
 <array>          
      <string>UIInterfaceOrientationLandscapeLeft</string>
      <string>UIInterfaceOrientationLandscapeRight</string>
 </array>

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Make sure that in every UIViewController/UITabBarController etc., in the shouldAutoRotateToInterfaceOrientation, the return says return ((interfaceOrientation == UIInterfaceOrientationLandscapeLeft) || (interfaceOrientation == UIInterfaceOrientationLandscapeRight));.