serial control

Hi

The attached activex control worked as an exe. I'm getting my own error that the comport is already open. Can anyone help me?

Thanks,
Julie

I'm not sure if you are using these codes in a usercontrol object, but i think you do.
In UserControl object use UserControl_Initialize instead of Form_Load. In your code, Form_Load is not initialized so
ComPort remains 0 as it is declared as an integer. If you replace Form_Load as UserControl_Initialize the error disappears. I tried and it worked.
I hope, i didn't misunderstood.

Alper