gnome-sharp2.20.0.0Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.
Used when the wishes to interact with the user at
the session manager's convenience (usually during shutdown and restarts).
The instance doing the interaction.
A unique key.
The that should be used to do the interaction.
All other s are blocked from interacting with the user until the
key is released via a call to .
Although the function is not obliged to respect the passed in ,
it is bad form not to do so.
System.DelegateSystem.Void