private void worker_DoWork(object sender, DoWorkEventArgs e)
{
// run all background tasks here
//autoSerialPort = FindPort();
IProgress <string> progress = null;
var ports = System.IO.Ports.SerialPort.GetPortNames().OrderBy(s => s);
if (ports.Count() <= 0)
{
MessageBox.Show(
"Error: No Serial Ports avaliable. Make sure the gps reciever is plugged in and installed. Contact your system administrator for help. \n"
, "Error 1: No Serial Ports Found",
MessageBoxButton.OK,
MessageBoxImage.Error);
_continue = false;
autoSerialPort = null;
return;
}
Application.Current.Dispatcher.Invoke((Action) delegate
{
prog = new autoscanProgress();
prog.Show();
});
int i = 0;
int portNum = 0;
int total = ports.Count() * 3;
prog.scanPercentLabel.Dispatcher.BeginInvoke((Action)(() => prog.scanPercentLabel.Content = "Beginning Scan..."));
prog.autoscanProgressBar.Dispatcher.BeginInvoke((Action)(() => prog.autoscanProgressBar.Value = 2));
foreach (var portName in ports)
{
portNum++;
using (var port = new System.IO.Ports.SerialPort(portName))
{
var defaultRate = port.BaudRate;
List <int> baudRatesToTest = new List <int>(new[] { 9600, 4800, 19200 }); //Ordered by likelihood // removed: 115200, 57600, 38400, 2400
//Move default rate to first spot
if (baudRatesToTest.Contains(defaultRate))
{
baudRatesToTest.Remove(defaultRate);
}
baudRatesToTest.Insert(0, defaultRate);
foreach (var baud in baudRatesToTest)
{
i++;
double test = (double)(i) / total;
int percent = (int)(test * 100);
Trace.WriteLine("Percent complete: " + percent + "%");
Application.Current.Dispatcher.Invoke((Action) delegate
{
prog.autoscanProgressBar.Value = percent;
prog.scanPercentLabel.Content = "Scanning Port " + portNum + " at Baud " + baud;
});
if (progress != null)
{
progress.Report(string.Format("Trying {0} @ {1}baud", portName, port.BaudRate));
worker.ReportProgress(percent);
}
port.BaudRate = baud;
port.ReadTimeout = 2500; //this might not be long enough
bool success = false;
try
{
port.Open();
if (!port.IsOpen)
{
continue; //couldn't open port
}
try
{
port.ReadTo("$GP");
success = true;
Trace.WriteLine("GPS Found at: " + port.PortName + " baud " + port.BaudRate);
}
catch (TimeoutException)
{
continue;
}
}
catch
{
//Error reading
}
finally
{
port.Close();
//prog.Close();
}
if (success)
{
Application.Current.Dispatcher.Invoke((Action) delegate
{
prog.Close();
});
autoSerialPort = new System.IO.Ports.SerialPort(portName, baud);
return;
}
}
}
}
//serialPort = new System.IO.Ports.SerialPort("COM6", 9600);
//return serialPort;
MessageBox.Show(
"Error: Could not AutoDetect a GPS device. Make sure the gps reciever is plugged in and installed. If you believe your device is properly installed, it may not be on a scanned baud rate (9600, 4800, 19200). " +
"If this is the case, please go to settings and manually enter the information for your GPS reciever. \n" +
"Contact your system administrator for help. \n"
, "Error 1: No Serial Ports Found",
MessageBoxButton.OK,
MessageBoxImage.Error);
autoSerialPort = null;
Application.Current.Dispatcher.Invoke((Action) delegate
{
prog.Close();
});
return;
}
private static System.IO.Ports.SerialPort FindPort(IProgress <string> progress = null)
{
var ports = System.IO.Ports.SerialPort.GetPortNames().OrderBy(s => s);
if (ports.Count() <= 0)
{
MessageBox.Show(
"Error: No Serial Ports avaliable. Make sure the gps reciever is plugged in and installed. Contact your system administrator for help. \n"
, "Error 1: No Serial Ports Found",
MessageBoxButton.OK,
MessageBoxImage.Error);
_continue = false;
return(null);
}
prog = new autoscanProgress();
prog.Show();
int i = 0;
int total = ports.Count() * 4;
prog.scanPercentLabel.Dispatcher.BeginInvoke((Action)(() => prog.scanPercentLabel.Content = "Beginning Scan..."));
prog.autoscanProgressBar.Dispatcher.BeginInvoke((Action)(() => prog.autoscanProgressBar.Value = 2));
foreach (var portName in ports)
{
i++;
int j = 0;
using (var port = new System.IO.Ports.SerialPort(portName))
{
j++;
var defaultRate = port.BaudRate;
List <int> baudRatesToTest = new List <int>(new[] { 9600, 4800, 19200 }); //Ordered by likelihood // removed: 115200, 57600, 38400, 2400
//Move default rate to first spot
if (baudRatesToTest.Contains(defaultRate))
{
baudRatesToTest.Remove(defaultRate);
}
baudRatesToTest.Insert(0, defaultRate);
foreach (var baud in baudRatesToTest)
{
//prog.autoscanProgressBar.Dispatcher.BeginInvoke((Action)(() => prog.autoscanProgressBar.Value = (double)(((i + j) / total) * 100)));
prog.SetProgress((int)(double)(((i + j) / total) * 100));
prog.scanPercentLabel.Dispatcher.BeginInvoke((Action)(() => prog.scanPercentLabel.Content = "Scanning Port " + i + " at Baud " + baud));
if (progress != null)
{
progress.Report(string.Format("Trying {0} @ {1}baud", portName, port.BaudRate));
}
port.BaudRate = baud;
port.ReadTimeout = 2000; //this might not be long enough
bool success = false;
try
{
port.Open();
if (!port.IsOpen)
{
continue; //couldn't open port
}
try
{
port.ReadTo("$GP");
success = true;
}
catch (TimeoutException)
{
continue;
}
}
catch
{
//Error reading
}
finally
{
port.Close();
//prog.Close();
}
if (success)
{
prog.Close();
return(new System.IO.Ports.SerialPort(portName, baud));
}
}
}
}
//serialPort = new System.IO.Ports.SerialPort("COM6", 9600);
//return serialPort;
MessageBox.Show(
"Error: Could not AutoDetect a GPS device. Make sure the gps reciever is plugged in and installed. If you believe your device is properly installed, it may not be on a scanned baud rate (9600, 4800, 19200). " +
"If this is the case, please go to settings and manually enter the information for your GPS reciever. \n" +
"Contact your system administrator for help. \n"
, "Error 1: No Serial Ports Found",
MessageBoxButton.OK,
MessageBoxImage.Error);
return(null);
}