HasOverlappedIoCompleted macro (winbase.h)
Provides a high performance test operation that can be used to poll for the completion of an outstanding I/O operation.
Syntax
void HasOverlappedIoCompleted(
lpOverlapped
);
Parameters
lpOverlapped
A pointer to an OVERLAPPED structure that was specified when the overlapped I/O operation was started.
Return value
None
Remarks
Do not call this macro unless the call to GetLastError returns ERROR_IO_PENDING, indicating that the overlapped I/O has started.
To cancel all pending asynchronous I/O operations, use the CancelIo function. The CancelIo function only cancels operations issued by the calling thread for the specified file handle. I/O operations that are canceled complete with the error ERROR_OPERATION_ABORTED.
To get more details about a completed I/O operation, call the GetOverlappedResult or GetQueuedCompletionStatus function.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | winbase.h (include Windows.h) |