static async System.Threading.Tasks.Task MainAsync(string[] args)
{
Console.WriteLine(".NETCore Console");
Console.WriteLine("SampleAsync_C#");
Console.WriteLine("--------------------");
Console.WriteLine("Library Version: " + iIDReaderLibrary.Version.LibraryVersion);
//Get DocInterfaceControl instance
DocInterfaceControl docIntControl = await Console_InitializeDocInterfaceControlAsync();
if (docIntControl != null)
{
//DocInterfaceControl is initialized
Console.WriteLine("");
Console.Write("Detecting reader..");
while (true)
{
//First of all, get the Reader Information
Console.Write(".");
var readerID = await docIntControl.ReadReaderIDAsync();
if (readerID != null)
{
Console.WriteLine("");
Console.WriteLine("Detected Reader:");
Console.WriteLine(readerID.ToString());
break;
}
}
//Reader info obtained --> execute functions using menu
Console.WriteLine("");
while (await Console_ExecuteAndContinueAsync(docIntControl))
{
;
}
docIntControl.Terminate();
Console.WriteLine("");
Console.Write("EXITING in 5");
Thread.Sleep(1000);
Console.Write(", 4");
Thread.Sleep(1000);
Console.Write(", 3");
Thread.Sleep(1000);
Console.Write(", 2");
Thread.Sleep(1000);
Console.Write(", 1");
Thread.Sleep(1000);
}
else
{
Console.Write("Initialization error <press ENTER to exit>");
Console.ReadLine();
}
m_Completed = true;
}
private static async System.Threading.Tasks.Task Console_Execute_ReadReaderIDAsync(DocInterfaceControl _docIntControl)
{
//First make sure DocInterfaceControl is initialized
if (_docIntControl != null)
{
if (_docIntControl.IsInitialized)
{
try
{
DateTime startTime = DateTime.UtcNow;
//Call ReadReaderID and show result
var readerID = await _docIntControl.ReadReaderIDAsync();
TimeSpan processSpan = DateTime.UtcNow - startTime;
if (readerID != null)
{
Console.WriteLine("");
Console.WriteLine("ReaderID:");
Console.WriteLine(readerID.ToString());
Console.WriteLine(string.Format("(Duration: {0})", processSpan));
}
else
{
//Update result in UI
Console.WriteLine(string.Format("Result: FAIL. Duration: {0}", processSpan));
}
}
catch
{
Console.WriteLine("Exception");
}
}
else
{
Console.WriteLine("DocInterfaceControl not initialized!");
}
}
}
private async void Worker_DoWorkAsync(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
int readerCheckFailCount = 0;
//Check readerID in 5 seconds interval
TimeSpan readerCheckSpan = TimeSpan.FromSeconds(5);
//Initialize lastChecked in the past --> when Worker started it should check for the ReaderID first of all
DateTime lastCheckedOk = DateTime.UtcNow.AddMinutes(-1);
//While port initialized:
// Check reader communication is still possible in 5 seconds interval
// Hint: This interval is not fixed! It is recomended to check the communication with the reader when no other operation is executed.
// => Most important for battery powered devices!
while (m_DocInterface.IsInitialized)
{
if (worker.CancellationPending == true)
{
//Exit loop if Background worker is cancelled
e.Cancel = true;
break;
}
else
{
if ((DateTime.UtcNow - lastCheckedOk) < readerCheckSpan)
{
//Next check time still not reached --> just do nothing
continue;
}
else
{
//Next check time reached --> check ReaderID
var readerInfo = await m_DocInterface.ReadReaderIDAsync();
if (readerInfo != null)
{
//ReaderID check OK
readerCheckFailCount = 0;
lastCheckedOk = DateTime.UtcNow;
if (!m_ReaderFound)
{
//Not previously found --> Enable functions
m_ReaderFound = true;
SetUiEnabled(true, readerInfo.ReaderID); //TODO show more info? Also HW info?
}
}
else
{
//ReaderID check failed
readerCheckFailCount++;
if (readerCheckFailCount > 5)
{
//Reader Check failed multiple times
if (m_ReaderFound)
{
//Previously found --> Asume Reader is lost!
m_ReaderFound = false;
SetUiEnabled(false, 0);
}
}
System.Threading.Thread.Sleep(200);
}
}
}
}
}
