#ifndef _NTEXAPI_H
#if (PHNT_MODE != PHNT_MODE_KERNEL)
//
// NLS
//
// begin_private
#if (PHNT_VERSION < PHNT_WINDOWS_7)

NTSYSCALLAPI
NTSTATUS
NTAPI
NtAcquireCMFViewOwnership(
    _Out_ PULONGLONG TimeStamp,
    _Out_ PBOOLEAN tokenTaken,
    _In_ BOOLEAN replaceExisting
    );

#endif
// end_private
#endif
#endif
View code on GitHub

#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwAcquireCMFViewOwnership(
    _Out_ PULONGLONG TimeStamp,
    _Out_ PBOOLEAN tokenTaken,
    _In_ BOOLEAN replaceExisting
    );

#endif
View code on GitHub