Applies to: desktop apps only
Posts an I/O completion packet to an I/O completion port.
Syntax
BOOL WINAPI PostQueuedCompletionStatus( __in HANDLE CompletionPort, __in DWORD dwNumberOfBytesTransferred, __in ULONG_PTR dwCompletionKey, __in_opt LPOVERLAPPED lpOverlapped );
Parameters
- CompletionPort [in]
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A handle to an I/O completion port to which the I/O completion packet is to be posted.
- dwNumberOfBytesTransferred [in]
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The value to be returned through the lpNumberOfBytesTransferred parameter of the GetQueuedCompletionStatus function.
- dwCompletionKey [in]
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The value to be returned through the lpCompletionKey parameter of the GetQueuedCompletionStatus function.
- lpOverlapped [in, optional]
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The value to be returned through the lpOverlapped parameter of the GetQueuedCompletionStatus function.
Return value
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError .
Remarks
The I/O completion packet will satisfy an outstanding call to the GetQueuedCompletionStatus function. This function returns with the three values passed as the second, third, and fourth parameters of the call to PostQueuedCompletionStatus. The system does not use or validate these values. In particular, the lpOverlapped parameter need not point to an OVERLAPPED structure.
Requirements
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Minimum supported client | Windows XP |
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Minimum supported server | Windows Server 2003 |
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Header |
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Library |
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DLL |
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See also
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Build date: 4/17/2012