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IDeviceRequestCompletionCallback::RequestCompletion method (deviceaccess.h)

  • Article

Implement the RequestCompletion method to handle the completion of calls to the DeviceIoControlAsync method.

Syntax

HRESULT RequestCompletion(
  [in] HRESULT requestResult,
  [in] DWORD   bytesReturned
);

Parameters

[in] requestResult

The result code that's returned for the I/O operation.

[in] bytesReturned

The number of bytes that were transferred as a result of the I/O operation.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

Requirement Value
Target Platform Windows
Header deviceaccess.h

See also

IDeviceRequestCompletionCallback