ClfsLsnNull function (wdm.h)

The ClfsLsnNull routine determines whether a specified LSN is equal to the smallest possible LSN, CLFS_LSN_NULL.

Syntax

CLFSUSER_API BOOLEAN ClfsLsnNull(
  [in] const CLFS_LSN *plsn
);

[in] plsn

A pointer to a CLFS_LSN structure that supplies the LSN to be tested.

ClfsLsnNull returns TRUE if the LSN supplied by the caller is equal to CLFS_LSN_NULL; otherwise, it returns FALSE.

For an explanation of CLFS concepts and terminology, see Common Log File System.

Requirement	Value
Minimum supported client	Available in Windows Server 2003 R2, Windows Vista, and later versions of Windows.
Target Platform	Desktop
Header	wdm.h (include Wdm.h)
Library	Clfs.lib
DLL	Clfs.sys
IRQL	Any level