RtlQueryInformationActivationContext - NtDoc

#ifndef _NTRTL_H

// private
NTSYSAPI
NTSTATUS
NTAPI
RtlQueryInformationActivationContext(
    _In_ ULONG Flags,
    _In_opt_ PACTIVATION_CONTEXT ActivationContext,
    _In_opt_ PACTIVATION_CONTEXT_QUERY_INDEX SubInstanceIndex,
    _In_ ACTIVATION_CONTEXT_INFO_CLASS ActivationContextInformationClass,
    _Out_writes_bytes_(ActivationContextInformationLength) PVOID ActivationContextInformation,
    _In_ SIZE_T ActivationContextInformationLength,
    _Out_opt_ PSIZE_T ReturnLength
    );

#endif
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