| public BeginRead ( AsyncCallback callback, object state ) : IAsyncResult | ||
| callback | AsyncCallback | An AsyncCallback delegate that is executed when a native message is read or an error has occured. |
| state | object | An user-defined object that is passed to the callback inside its IAsyncResult parameter. |
| Результат | IAsyncResult | |
public IAsyncResult BeginRead(AsyncCallback callback, object state)
{
AsyncResult ar = new AsyncResult(this, callback, state);
ar.lengthBuffer = new byte[4];
ar.lengthOffset = 0;
istream.BeginRead(
ar.lengthBuffer,
ar.lengthOffset,
ar.lengthBuffer.Length - ar.lengthOffset,
delegate (IAsyncResult _ar) { ((AsyncResult)_ar.AsyncState).port.ReadLengthCallback((AsyncResult)_ar.AsyncState, _ar); },
ar);
return ar;
}
