private void btnFindControlUnit_Click(object sender, EventArgs e)
{
this.Enabled = false;
cbxComPort.Enabled = false;
// check if the virtual handset is currently connected
if (Handset.IsConnected())
{
// disconnect the virtual handset
Handset.Disconnect();
}
// get the port of the first found control-unit
// NOTE: this function can take long time to finish,
// so prefer to do this on first launch of the app and then
// save the COM-port in your application settings.
string PortNameOfFoundControlUnit = Handset.GetPortOfFirstFoundControlUnit();
// check if we have not found a control-unit
if (PortNameOfFoundControlUnit == "")
{
MessageBox.Show("No control-unit found!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
try {
// do not select any items
cbxComPort.SelectedItem = null;
// try to select the found COM-port in the list
cbxComPort.SelectedItem = PortNameOfFoundControlUnit;
} catch {
// do not select any items on error
cbxComPort.SelectedItem = null;
}
}
cbxComPort.Enabled = true;
this.Enabled = true;
}
