System.Classes.TObservers.TryIsObserving
Delphi
function TryIsObserving(const ID: Integer; out AIntf: IInterface): Boolean; virtual;
C++
virtual bool __fastcall TryIsObserving(const int ID, /* out */ System::_di_IInterface &AIntf);
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.Classes.pas System.Classes.hpp |
System.Classes | TObservers |
Description
Returns whether the specified observer is active or not and if active, it also returns the observer.
TryIsObserving returns True if the observer given through ID is active, False otherwise. If the observer is active, the AIntf output parameter will contain the observer.