BaseContext :: active - Is context active
A context is active, when it is enabled and when it is not a default context, i.e. when it is an instance of an application-defined context class.
When the context handle does not refer to a valid context instance the property throws an exception.
Return value: Success ( bool )
The value is true when the function was executed successfully. Otherwise the value is set to false .
Implementation details
bool
BaseContext :: active ( )
The function returns true , when the context is active and false otherwise.