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 |
|---|---|
Retrieves the object's CLSID. |
|
Instructs the object to release all storage objects and enter HandsOff mode. The ATL implementation returns S_OK. |
|
Initializes a new storage. |
|
Checks whether the object's data has changed since it was last saved. |
|
Loads the object's properties from the specified storage. |
|
Saves the object's properties to the specified storage. |
|
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