NtReplyWaitReplyPort - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
#ifndef _NTLPCAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
NtReplyWaitReplyPort(
    _In_ HANDLE PortHandle,
    _Inout_ PPORT_MESSAGE ReplyMessage
    );

#endif

View code on GitHub
#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwReplyWaitReplyPort(
    _In_ HANDLE PortHandle,
    _Inout_ PPORT_MESSAGE ReplyMessage
    );

#endif

View code on GitHub

NtReplyWaitReplyPort sends REPLY and waits for other side REPLY.

PortHandle

HANDLE to Port Object.

Reply

There's a pointer to LPC_MESSAGE structure. On input, should be filled with REPLY data by user. On output it contains REPLY from other side.

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See also

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