NtOpenIoCompletion - NtDoc

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

NTSYSCALLAPI
NTSTATUS
NTAPI
NtOpenIoCompletion(
    _Out_ PHANDLE IoCompletionHandle,
    _In_ ACCESS_MASK DesiredAccess,
    _In_ PCOBJECT_ATTRIBUTES ObjectAttributes
    );

#endif

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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwOpenIoCompletion(
    _Out_ PHANDLE IoCompletionHandle,
    _In_ ACCESS_MASK DesiredAccess,
    _In_ PCOBJECT_ATTRIBUTES ObjectAttributes
    );

#endif

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NTinternals.net (undocumented.ntinternals.net)

Function NtOpenIoCompletion opens existing IO Completion Object. IO Completion must be created as named object.

IoCompletionHandle

Result of call - pointer to HANDLE value.

DesiredAccess

Can be one or combination of:

ObjectAttributes

Pointer to OBJECT_ATTRIBUTES structure containing valid IO Completion name.

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See also

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