RtlQueryActivationContextApplicationSettings - NtDoc

#ifndef _NTRTL_H

// rev
NTSYSAPI
NTSTATUS
NTAPI
RtlQueryActivationContextApplicationSettings(
    _Reserved_ ULONG Flags,
    _In_ PACTIVATION_CONTEXT ActivationContext,
    _In_ PCWSTR SettingsNameSpace,
    _In_ PCWSTR SettingName,
    _Out_writes_bytes_(BufferLength) PWSTR Buffer,
    _In_ SIZE_T BufferLength,
    _Out_opt_ PSIZE_T RequiredLength
    );

#endif
View code on GitHub