Queries whether the specified gamer is a friend of this local gamer.
Assembly: Microsoft.Xna.Framework (in microsoft.xna.framework.dll)
|ArgumentNullException||gamer is null.|
|GamerPrivilegeException||A signed in gamer profile is required to perform this operation. A LIVE profile may also be required. There are no profiles currently signed in, or the profile is not signed in to LIVE.|
|ObjectDisposedException||The gamer object has already been disposed.|