NtAcquireCrossVmMutant - NtDoc

#ifndef _NTMISC_H
#if (PHNT_VERSION >= PHNT_WINDOWS_10_20H1)

// rev
NTSYSCALLAPI
NTSTATUS
NTAPI
NtAcquireCrossVmMutant(
    _In_ HANDLE CrossVmMutant,
    _In_ PLARGE_INTEGER Timeout
    );

#endif
#endif
View code on GitHub

#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwAcquireCrossVmMutant(
    _In_ HANDLE CrossVmMutant,
    _In_ PLARGE_INTEGER Timeout
    );

#endif
View code on GitHub