IPersistPropertyBag Interface

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The IPersistPropertyBag interface works in conjunction with IPropertyBag and IErrorLog to define an individual property-based persistence mechanism.

IPersistPropertyBag Methods

InitNew	Informs the object that it is being initialized as a newly created object.
Load	Instructs the object to initialize itself using the properties available in the property bag, notifying the provided error log object when errors occur.
Save	Instructs the object to save its properties to the given property bag, optionally clearing the object's dirty flag.

Interface Information

Implementation	Custom
Inherits from	IPersist
Header and IDL files	Ocidl.h; Ocidl.idl
Minimum availability	Internet Explorer 4.0
Minimum operating systems	Windows 95, Windows NT 4.0

Remarks

A mechanism such as IPersistStream gives an object an IStream in which to store its binary data, while IPersistPropertyBag provides an object with an IPropertyBag interface through which it can save and load individual properties. The object that implements IPropertyBag can then save those properties in various ways, such as name/value pairs in a text file. Errors encountered in the process (on either side) are recorded in an error log through IErrorLog. This error reporting mechanism works on a per-property basis instead of on all properties at once.