NtCreateWaitCompletionPacket - NtDoc

#ifndef _NTIOAPI_H
// Wait completion packet
#if (PHNT_VERSION >= PHNT_WIN8)

NTSYSCALLAPI
NTSTATUS
NTAPI
NtCreateWaitCompletionPacket(
    _Out_ PHANDLE WaitCompletionPacketHandle,
    _In_ ACCESS_MASK DesiredAccess,
    _In_opt_ POBJECT_ATTRIBUTES ObjectAttributes
    );

#endif
#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwCreateWaitCompletionPacket(
    _Out_ PHANDLE WaitCompletionPacketHandle,
    _In_ ACCESS_MASK DesiredAccess,
    _In_opt_ POBJECT_ATTRIBUTES ObjectAttributes
    );

#endif
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