private void ButtonAddVirtualComPort_Click(object sender, EventArgs e)
{
VirtualComPort newPort;
try
{
newPort = new VirtualComPort(virtualComPortRootKey, virtualComPortDll,
virtualComPortFriendlyName);
if (! newPort.DriverLoaded)
{
MessageBox.Show("Failed to load driver for new virtual COM port. There may not be a free COM port number.",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Hand, MessageBoxDefaultButton.Button1);
newPort = null;
}
}
catch (Exception ex)
{
MessageBox.Show("Failed to create new virtual COM port object: " + ex.Message, "Error",
MessageBoxButtons.OK, MessageBoxIcon.Hand, MessageBoxDefaultButton.Button1);
newPort = null;
}
if (newPort != null)
{
// Successfully loaded the driver for a new virtual COM port. Add it to the array.
VirtualComPort[] newPorts = new VirtualComPort[virtualComPorts.Length + 1];
virtualComPorts.CopyTo(newPorts, 0);
newPorts[virtualComPorts.Length] = newPort;
virtualComPorts = newPorts;
// Update the saved configuration.
UpdateVirtualComPortsConfiguration();
// Update the user interface.
RepopulateVirtualComPortsDialog();
}
}
private void ButtonRemoveVirtualComPort_Click(object sender, EventArgs e)
{
int i = virtualComPortsDialog.VirtualComPortListBox.SelectedIndex;
if (i >= 0)
{
// Dispose of the COM port.
if (virtualComPorts[i] != null)
virtualComPorts[i].Dispose();
// Remove it from the array.
VirtualComPort[] newPorts = new VirtualComPort[virtualComPorts.Length - 1];
for (int j = 0; j < i; j++)
newPorts[j] = virtualComPorts[j];
for (int j = i + 1; j < virtualComPorts.Length; j++)
newPorts[j - 1] = virtualComPorts[j];
virtualComPorts = newPorts;
// Update the saved configuration.
UpdateVirtualComPortsConfiguration();
// Update the user interface.
RepopulateVirtualComPortsDialog();
}
}
private void LoadVirtualComPortDrivers()
{
// First clear out the virtual COM port key.
string[] subKeyNames = virtualComPortRootKey.GetSubKeyNames();
foreach (string keyName in subKeyNames)
virtualComPortRootKey.DeleteSubKeyTree(keyName);
// Load the list of virtual COM ports to be created.
string[] virtualComPortNames;
string virtualComPortSetting = configSettings.GetString("Virtual COM Ports", "").Trim();
if (virtualComPortSetting == "")
{
virtualComPortNames = new string[0];
}
else
{
virtualComPortNames = System.Text.RegularExpressions.Regex.Split(virtualComPortSetting,
@"\s*,\s*", System.Text.RegularExpressions.RegexOptions.None);
}
// Create the virtual COM ports.
int i = 0;
virtualComPorts = new VirtualComPort[virtualComPortNames.Length];
foreach (string portName in virtualComPortNames)
{
try
{
virtualComPorts[i] = new VirtualComPort(virtualComPortRootKey,
virtualComPortDll, virtualComPortFriendlyName, portName);
if (! virtualComPorts[i].DriverLoaded)
MessageBox.Show("Error loading virtual COM port driver for " + portName,
"Error", MessageBoxButtons.OK, MessageBoxIcon.Hand, MessageBoxDefaultButton.Button1);
i++;
}
catch (Exception e)
{
virtualComPorts[i] = null;
MessageBox.Show("Error creating virtual COM port object for " + portName + ": " +
e.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Hand,
MessageBoxDefaultButton.Button1);
}
}
// Resize the virtual COM port array if we had any catastrophic failures.
if (i < virtualComPortNames.Length)
{
VirtualComPort[] newPorts = new VirtualComPort[i];
for (int j = 0; j < i; j++)
newPorts[j] = virtualComPorts[j];
virtualComPorts = newPorts;
}
}
