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fixed missing object reference exception in ExitProgram()

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This commit is contained in:
Edward Wright 2019-06-04 21:52:17 -04:00
parent c1a66d192e
commit c9cbe4ecc7
1 changed files with 2 additions and 7 deletions
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9
SimplySerial/SimplySerial.cs
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@ -240,11 +240,6 @@ namespace SimplySerial
// get a list of all available com ports
string[] availablePorts = SerialPort.GetPortNames();
foreach (string potentialPort in availablePorts)
{
Console.WriteLine("PORT: {0}", potentialPort);
}
// if no port was specified, default to the first/only available com port, exit with error if no ports are available
if (port == String.Empty)
{
@ -305,7 +300,7 @@ namespace SimplySerial
static void ExitProgram(string message="", int exitCode=0, bool silent=false)
{
// the serial port should be closed before exiting
if (serialPort.IsOpen)
if (serialPort != null && serialPort.IsOpen)
serialPort.Close();
if (!silent)
@ -339,7 +334,7 @@ namespace SimplySerial
// '?' or 'h' trigger the 'help' text output and supersede all other command-line arguments
// 'q' enables the 'quiet' option, which needs to be enabled before something that would normally generate console output
// 'n' enables the 'nowait' option, which needs to be enabled before anything that would trigger an artificial delay
foreach (char c in "?hqn")
foreach (char c in "?hlqn")
{
if (x[0] == c)
return (-1);