private Task <List <String> > GetIdentificationsAsync()
{
var tcs = new TaskCompletionSource <List <string> >();
try {
var control = new R100DeviceControl();
Action <List <string> > handler = null;
handler = result => {
// Once event raised then set the
// Result property on the underlying Task.
control.OnUserDB -= handler; //optional to unsubscribe from event
tcs.TrySetResult(result);
};
control.OnUserDB += handler;
control.Open();
int count = 0;
//call async event
int nResult = control.DownloadUserDB(out count);
} catch (Exception ex) {
//Bubble the error up to be handled by calling client
tcs.TrySetException(ex);
}
// Return the underlying Task. The client code
// waits on the Result property, and handles exceptions
// in the try-catch block there.
return(tcs.Task);
}
} // 查看目前用戶有無虹膜眼球
public void inicontrol()
{
control.OnGetIrisImage += new _IR100DeviceControlEvents_OnGetIrisImageEventHandler(OnGetIrisImage);
control.OnEnrollReport += new _IR100DeviceControlEvents_OnEnrollReportEventHandler(OnEnrollReport);
control.OnMatchReport += new _IR100DeviceControlEvents_OnMatchReportEventHandler(OnMatchReport);
//if (!Directory.Exists(_TempImagesDirectory)) // 如果沒有Temp創建一個
//{
// Directory.CreateDirectory(_TempImagesDirectory);
//}
try
{
nResult = control.Close();
nResult = control.Open();
if (nResult != 0)
{
TbMessage.AppendText("虹膜開啟失敗\r\n");
}
nResult = control.GetSerialNumber(out strValue);
if (nResult != Constants.IS_ERROR_NONE)
{
TbMessage.AppendText("虹膜開啟發生錯誤\r\n");
}
nResult = m_HostDBControl.Open(strValue);
//LoadEnrolledUserInfo(); // 開啟時載入用戶資訊使用
}
catch (Exception err)
{
ATS.LCSCommon.WriteRunLog(err.Message);
}
} // 開啟時設定虹膜Control
public void Open()
{
var control = new R100DeviceControl();
control.OnUserDB += Control_OnUserDB;
control.Open();
// you may need to store nResult and count in a field?
nResult = control.DownloadUserDB(out int count);
}
