I am programming a Phidget Motor Control HC to control a DC motor using .NET 3.5. The code is working fin, I can set the motor velocity and acceleration and it responds correctly. I am not, however, getting any notifications back (such as Current and Velocity change). Here is my initialization code:

public new void Start()
{
try
{
//Initiallize the MotorControl object
motoControl = new MotorControl();

//Hook the basic event handlers
motoControl.Attach += new AttachEventHandler(motoControl_Attach);
motoControl.Detach += new DetachEventHandler(motoControl_Detach);
motoControl.Error += new ErrorEventHandler(motoControl_Error);

//Hook the phidget specific event handlers
motoControl.CurrentChange += new CurrentChangeEventHandler(motoControl_CurrentChange);
motoControl.InputChange += new InputChangeEventHandler(motoControl_InputChange);
motoControl.VelocityChange += new VelocityChangeEventHandler(motoControl_VelocityChange);

//open the object for MotorControl device connections
motoControl.open();

// Register Events with Instrument Observer
RegisterSubjectEvent(EventName.MOTOR_VELOCITY_UPDATE_EVENT);
RegisterSubjectEvent(EventName.MOTOR_CURRENT_UPDATE_EVENT);
MessageHandler.Start();

}
catch (PhidgetException ex)
{
MessageBox.Show(string.Format("{0}. Phidget Exception: {1}", Name, ex.Description));
}
catch (Exception ex)
{
MessageBox.Show(string.Format("{0}. Exception: {1}", Name, ex.Message));
}
}

Any idea why?

Are you getting the attach event?

I'm not sure what the RegisterSubjectEvent lines are supposed to be doing, I'm not familiar with that method.

-Patrick

Thank you for your response.
Placing a breakpoint in the attach event handler never breaks. However, I know that the device is attached since I can send velocity and acceleration commands and the device is responding (I also added a waitForAttachment and it is not blocking). It is simply that none of the events I am registering to receive are being issued.
The RegisterSubjectEvent has nothing to do with this. I commented this code out, place breakpoints in all the event handler and none of them break).

If you open/run the c# example, do you get events?

Is there anything unique about your project which is different from the examples?

-Patrick

I got it resolved. I had the Phidget library referenced (by mistake) on another project in the solution and it created this problem.