using System; namespace Microsoft.Win32 { public class SessionSwitchEventArgs : EventArgs { public SessionSwitchReason Reason { get { throw new PlatformNotSupportedException(System.SR.PlatformNotSupported_SystemEvents); } } public SessionSwitchEventArgs(SessionSwitchReason reason) { throw new PlatformNotSupportedException(System.SR.PlatformNotSupported_SystemEvents); } } }