_Out_ PHANDLE IoCompletionHandle,
_In_ ACCESS_MASK DesiredAccess,
_In_opt_ POBJECT_ATTRIBUTES ObjectAttributes,
_In_opt_ ULONG Count
NtCreateIoCompletion creates IO Completion Object. IO Completion Object is used for waiting on pending IO operation (reading or writing) in multi-process file access. It contains more information about IO operation than synchronization event or APC Routine.
Result of call -
HANDLE to newly created IO Completion Object.
Access mask for created
HANDLE. Can be combination of:
Optionally contains object name, in Objects Namespace.
Number of threads accessing File Object associated with IO Completion. If Zero, system reserves memory for number of threads equal to current number of processes.