Raises the Closing event.
protected virtual void OnClosing(
A CancelEventArgs that contains the event data.
OnClosing raises the Closing event.
A type that derives from Window may override OnClosing. The overridden method must call OnClosing on the base class if Closing needs to be raised.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.