NtUmsThreadYield - NtDoc

#ifndef _NTEXAPI_H
#if (PHNT_MODE != PHNT_MODE_KERNEL)
// UMS
#if (PHNT_VERSION >= PHNT_WIN7)

NTSYSCALLAPI
NTSTATUS
NTAPI
NtUmsThreadYield(
    _In_ PVOID SchedulerParam
    );

#endif
#endif
#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwUmsThreadYield(
    _In_ PVOID SchedulerParam
    );

#endif
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