COMException in System.WIndows.Forms.dll with Interactive Brokers TWS API
- by Lirik
Hi,
I've been trying to run the sample project provided with the tutorial at stockbotprogramming http://www.stockbotprogramming.com/sharpcibtutorial1.php , but I keep getting a COMException every time I run the application.
I have the TWS Client running and the sample VB projects provided with the API are able to connect just fine, but when I try to use the C# sample provided by the tutorial then I get the following exception:
An unhandled exception of type
'System.Runtime.InteropServices.COMException'
occurred in System.Windows.Forms.dll
Th exception happens when I try to add the TWS ActiveX control:
namespace CSharpTutorial1
{
public partial class Form1 : Form
{
private AxTWSLib.AxTws tws;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
tws = new AxTWSLib.AxTws();
tws.BeginInit();
tws.Enabled = true;
tws.Location = new System.Drawing.Point(32, 664);
tws.Name = "tws";
Controls.Add(tws); // <-- EXCEPTION HERE!
tws.EndInit();
tws.connect("127.0.0.1", 7496, 0);
String msg = "Connected to TWS server version " + tws.serverVersion + "at " + tws.TwsConnectionTime;
MessageBox.Show(msg);
}
}
}
Does anybody know what could be causing this exception? Any ideas on how to fix it?
