/// <summary>
/// 写数据到USB端口的文件流
/// </summary>
/// <param name="Data">需要写入的数据</param>
/// <returns>成功则返回OK，异常则返回DataSendFail</returns>
private static COMMUNICATERESULT WriteData(byte[] Data)
{
try
{
SaveRecDataList.Clear();
//m_oFile.Flush();
Thread.Sleep(100);
m_oFile.Write(Data, 0, Data.Length);
}
catch (Exception ee)
{
// The device was removed!
HidExist = false;
int jj = Marshal.GetLastWin32Error();
return(COMMUNICATERESULT.DataSendFail);
}
return(COMMUNICATERESULT.OK);
}
/// <summary>
/// Callback for above. Care with this as it will be called on the background thread from the async read
/// </summary>
/// <param name="iResult">Async result parameter</param>
protected static void ReadCompleted(IAsyncResult iResult)
{
byte[] arrBuff = (byte[])iResult.AsyncState; // retrieve the read buffer
byte[] tempbyte = new byte[8];
for (int i = 0; i < tempbyte.Length; i++)
{
tempbyte[i] = arrBuff[i + 1];
}
SaveRecDataList.AddRange(tempbyte);
try
{
m_oFile.EndRead(iResult); // call end read : this throws any exceptions that happened during the read
BeginAsyncRead(); // when all that is done, kick off another read for the next report
}
catch (IOException ex) // if we got an IO exception, the device was removed
{
HidExist = false;
}
}
