/// <summary>
/// 定时器到期的事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void timer_Tick(object sender, EventArgs e)
{
//约定条码最少5位
if (_scanCode.Length >= 5)
{
_scanCode = _scanCode.Trim((char)13);
//由于读卡器和扫描器原理一样，都是模拟USB键盘，所以这里可能收到的是读卡器的键盘消息
//读卡器的卡号规律比较明显，所以很容易刨除
if (!CardReader.IsCardCode(_scanCode))
{
_timer.Stop();
OnScannerRead(_scanCode);
}
}
_scanCode = "";
_timer.Start();
}
/// <summary>
/// 读卡构造函数
/// </summary>
/// <param name="type"></param>
public DeviceReaderDialog(DeviceType type = DeviceType.Card)
{
InitializeComponent();
//TODO: 硬件 接口没有做好之前先能手填
this.Readonly = false;
if (type == DeviceType.Card)
{
this._cardReader = new CardReader(this);
this._cardReader.CardRead += new CardReadEventHandler(_cardReader_CardRead);
}
else if (type == DeviceType.UsbScanner)
{
this._usbScanner = new USBScanner(this);
this._usbScanner.ScannerRead += new ScannerReadEventHandler(Scanner_ScannerRead);
}
else if (type == DeviceType.ComScanner)
{
this._comScanner = new COMScanner("COM3");
this._comScanner.ScannerRead += new ScannerReadEventHandler(Scanner_ScannerRead);
}
}