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Retrieves the change point identifier.
Syntax
HRESULT get_ChangePoint(
[out] LONG *pVal
);
Parameters
[out] pVal
Change point identifier. The identifier is a count of the changes to the file system image since its inception.
Return value
S_OK is returned on success, but other success codes may be returned as a result of implementation. The following error codes are commonly returned on operation failure, but do not represent the only possible error values:
| Return code | Description |
|---|---|
|
Pointer is not valid.
Value: 0x80004003 |
Remarks
An application can store the value of this property prior to making a change to the file system, then at a later point pass the value to the IFileSystemImage::RollbackToChangePoint method to revert changes since that point in development.
An application can call the IFileSystemImage::LockInChangePoint method to lock the state of a file system image at any point in its development. Once a lock is set, you cannot call RollbackToChangePoint to revert the file system image to its earlier state.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista, Windows XP with SP2 [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | imapi2fs.h |