NtSetIoCompletion - NtDoc

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

NTSYSCALLAPI
NTSTATUS
NTAPI
NtSetIoCompletion(
    _In_ HANDLE IoCompletionHandle,
    _In_opt_ PVOID KeyContext,
    _In_opt_ PVOID ApcContext,
    _In_ NTSTATUS IoStatus,
    _In_ ULONG_PTR IoStatusInformation
    );

#endif

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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwSetIoCompletion(
    _In_ HANDLE IoCompletionHandle,
    _In_opt_ PVOID KeyContext,
    _In_opt_ PVOID ApcContext,
    _In_ NTSTATUS IoStatus,
    _In_ ULONG_PTR IoStatusInformation
    );

#endif

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NTinternals.net (undocumented.ntinternals.net)

Function NtSetIoCompletion increments pending IO counter in IO Completion Object. It can be used to manual finish IO operation.

IoCompletionHandle

HANDLE to IO Completion Object opened with IO_COMPLETION_MODIFY_STATE access.

CompletionKey

User's defined key received by NtRemoveIoCompletion function.

IoStatusBlock

IO result of call.

CompletionStatus

IO operation status.

NumberOfBytesTransferred

Number of bytes transferred in manually finished IO operation.

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