USN_RECORD_UNION union (ntifs.h)
The USN_RECORD_UNION is a union that encapsulates different versions of USN record structures. It provides a flexible way to handle USN records of varying formats.
Syntax
typedef union {
USN_RECORD_COMMON_HEADER Header;
USN_RECORD_V2 V2;
USN_RECORD_V3 V3;
USN_RECORD_V4 V4;
} USN_RECORD_UNION, *PUSN_RECORD_UNION;
Members
Header
A USN_RECORD_COMMON_HEADER structure that provides common header information for USN records. This member is useful for accessing shared fields across different USN record versions.
V2
A USN_RECORD_V2 structure representing the version 2 format of a USN record.
V3
A USN_RECORD_V3 structure representing the version 3 format of a USN record.
V4
A USN_RECORD_V4 structure representing the version 4 format of a USN record.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8.1 |
| Header | ntifs.h |