System.Classes.IStreamPersist
Delphi
IStreamPersist = interface
C++
__interface INTERFACE_UUID("{B8CD12A3-267A-11D4-83DA-00C04F60B2DD}") IStreamPersist : public System::IInterface
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
interface class |
public | System.Classes.pas System.Classes.hpp |
System.Classes | System.Classes |
Description
IStreamPersist is the interface for responding to requests to load/save an object from/to a persistent stream.
IStreamPersist introduces two methods, SaveToStream and LoadFromStream, which allows the designer to respond a request to store or retrieve the implementing object to a persistent stream.
You use SaveToStream to serialise an object, and save this data in a stream independent of the running application. This serialised version of the object literally persists and is available for loading back using LoadFromStream. It is then de-serialised, and reconstituted as an object.
For example, the TGraphic class itself implements the IStreamPersist.