RtlRunOnceExecuteOnce - NtDoc

#ifndef _NTRTL_H
#if (PHNT_VERSION >= PHNT_VISTA)

_Maybe_raises_SEH_exception_
NTSYSAPI
NTSTATUS
NTAPI
RtlRunOnceExecuteOnce(
    _Inout_ PRTL_RUN_ONCE RunOnce,
    _In_ __callback PRTL_RUN_ONCE_INIT_FN InitFn,
    _Inout_opt_ PVOID Parameter,
    _Outptr_opt_result_maybenull_ PVOID *Context
    );

#endif
#endif
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