IPersistStorageImpl Class

This class implements the IPersistStorage interface.

Important

This class and its members cannot be used in applications that execute in the Windows Runtime.

template < 
class T 
> 
class ATL_NO_VTABLE IPersistStorageImpl : 
public IPersistStorage

Parameters

• T
  Your class, derived from IPersistStorageImpl.

Members

Public Methods

Name	Description
IPersistStorageImpl::GetClassID	Retrieves the object's CLSID.
IPersistStorageImpl::HandsOffStorage	Instructs the object to release all storage objects and enter HandsOff mode. The ATL implementation returns S_OK.
IPersistStorageImpl::InitNew	Initializes a new storage.
IPersistStorageImpl::IsDirty	Checks whether the object's data has changed since it was last saved.
IPersistStorageImpl::Load	Loads the object's properties from the specified storage.
IPersistStorageImpl::Save	Saves the object's properties to the specified storage.
IPersistStorageImpl::SaveCompleted	Notifies an object that it can return to Normal mode to write to its storage object. The ATL implementation returns S_OK.

Remarks

IPersistStorageImpl implements the IPersistStorage interface, which allows a client to request that your object load and save its persistent data using a storage.

The implementation of this class requires class T to make an implementation of the IPersistStreamInit interface available via QueryInterface. Typically this means that class T should derive from IPersistStreamInitImpl, provide an entry for IPersistStreamInit in the COM map, and use a property map to describe the class's persistent data.

Related Articles   ATL Tutorial, Creating an ATL Project

Inheritance Hierarchy

IPersistStorage

IPersistStorageImpl

Requirements

Header: atlcom.h

See Also

Reference

Storages and Streams

IPersistStreamInitImpl Class

IPersistPropertyBagImpl Class

Other Resources

ATL Class Overview