//We'll create our encoder object and initialize the event handlers and open the Phidget Encoder
//A small note: since we are doing this in the form load method, we don't have to worry about
//waiting for attach on the phidget as this would prevent the form from loading until you have an
//encoder attached. I have programmd so that the form can fully load without consequence and
//everything will work once an Encoder is attached.
private void Form1_Load(object sender, EventArgs e)
{
inputArray = new ArrayList();
inputArray.Add(input0Chk);
inputArray.Add(input1Chk);
inputArray.Add(input2Chk);
inputArray.Add(input3Chk);
for (int i = 0; i < 4; i++)
{
((CheckBox)inputArray[i]).Visible = false;
((CheckBox)inputArray[i]).AutoCheck = false;
((CheckBox)inputArray[i]).Enabled = true;
}
encoder = new Phidgets.Encoder();
encoder.Attach += new AttachEventHandler(encoder_Attach);
encoder.Detach += new DetachEventHandler(encoder_Detach);
encoder.Error += new ErrorEventHandler(encoder_Error);
encoder.InputChange += new InputChangeEventHandler(encoder_InputChange);
encoder.PositionChange += new EncoderPositionChangeEventHandler(encoder_PositionChange);
openCmdLine(encoder);
}
static void Main(string[] args)
{
try
{
//Initialize the Encoder object
encoder = new Phidgets.Encoder();
//Hook the basic event handlers
encoder.Attach += new AttachEventHandler(encoder_Attach);
encoder.Detach += new DetachEventHandler(encoder_Detach);
encoder.Error += new ErrorEventHandler(encoder_Error);
//Hook the phidget specific event handlers
encoder.InputChange += new InputChangeEventHandler(encoder_InputChange);
encoder.PositionChange += new EncoderPositionChangeEventHandler
(encoder_PositionChange);
//open the object for connections
encoder.open();
//Wait for an encoder device to be attached before continuing
Console.WriteLine("Waiting for Encoder to be attached....");
encoder.waitForAttachment();
//Wait for user input before continuing so that we can see the events
//being sent when using the encoder
Console.WriteLine("Press any key to end...");
Console.Read();
//Since user input is read we can terminate the program, so we'll close
//the encoder object
encoder.close();
//set the object to null to get it out of memory
encoder = null;
//if no expcetions where thrown at this point it is safe to terminate
Console.WriteLine("ok");
}
catch (PhidgetException ex)
{
Console.WriteLine(ex.Description);
}
}
//Attach event handler...populate our encoder info fields and enable our editable fields
void encoder_Attach(object sender, AttachEventArgs e)
{
Phidgets.Encoder attached = (Phidgets.Encoder)sender;
attachedTxt.Text = attached.Attached.ToString();
nameTxt.Text = attached.Name;
serialTxt.Text = attached.SerialNumber.ToString();
versionTxt.Text = attached.Version.ToString();
numEncodersTxt.Text = attached.encoders.Count.ToString();
numInputsTxt.Text = attached.inputs.Count.ToString();
for (int i = 0; i < attached.inputs.Count; i++)
{
((CheckBox)inputArray[i]).Visible = true;
}
for (int i = 0; i < attached.encoders.Count; i++)
{
encoderCmb.Items.Add(i);
}
encoderCmb.SelectedIndex = 0;
encoderCmb.Enabled = true;
switch (attached.ID)
{
case Phidget.PhidgetID.ENCODER_HS_4ENCODER:
enabledChk.Enabled = true;
timeChangeLabel.Text = "Time since last change (μs):";
break;
case Phidget.PhidgetID.ENCODER_HS_1ENCODER:
case Phidget.PhidgetID.ENCODER_1ENCODER_1INPUT:
enabledChk.Enabled = false;
timeChangeLabel.Text = "Time since last change (ms):";
indexPositionTxt.Text = "Unsupported";
break;
default:
break;
}
}
//Detach event code...We'll clear our display fields and disable our editable fields while device is not attached
//as trying to communicate with the device while not attached will generate a PhidgetException. In this example,
//I have coded so that this should not occur, but best practice would be to catch it and handle it accordingly
void encoder_Detach(object sender, DetachEventArgs e)
{
Phidgets.Encoder detached = (Phidgets.Encoder)sender;
attachedTxt.Text = detached.Attached.ToString();
nameTxt.Text = "";
serialTxt.Text = "";
versionTxt.Text = "";
numEncodersTxt.Text = "";
numInputsTxt.Text = "";
positionTxt.Text = "";
encoderPositionTxt.Text = "";
timeTxt.Text = "";
velocityTextBox.Text = "";
for (int i = 0; i < 4; i++)
{
((CheckBox)inputArray[i]).Visible = false;
}
enabledChk.Enabled = false;
enabledChk.Checked = false;
indexPositionTxt.Clear();
encoderCmb.Enabled = false;
encoderCmb.Items.Clear();
}
//We'll create our encoder object and initialize the event handlers and open the Phidget Encoder
//A small note: since we are doing this in the form load method, we don't have to worry about
//waiting for attach on the phidget as this would prevent the form from loading until you have an
//encoder attached. I have programmd so that the form can fully load without consequence and
//everything will work once an Encoder is attached.
private void Form1_Load(object sender, EventArgs e)
{
inputArray = new ArrayList();
inputArray.Add(input0Chk);
inputArray.Add(input1Chk);
inputArray.Add(input2Chk);
inputArray.Add(input3Chk);
for (int i = 0; i < 4; i++)
{
((CheckBox)inputArray[i]).Visible = false;
((CheckBox)inputArray[i]).AutoCheck = false;
((CheckBox)inputArray[i]).Enabled = true;
}
encoder = new Phidgets.Encoder();
encoder.Attach += new AttachEventHandler(encoder_Attach);
encoder.Detach += new DetachEventHandler(encoder_Detach);
encoder.Error += new ErrorEventHandler(encoder_Error);
encoder.InputChange += new InputChangeEventHandler(encoder_InputChange);
encoder.PositionChange += new EncoderPositionChangeEventHandler(encoder_PositionChange);
openCmdLine(encoder);
}
static void Main(string[] args)
{
try
{
//Initialize the Encoder object
encoder = new Phidgets.Encoder();
//Hook the basic event handlers
encoder.Attach += new AttachEventHandler(encoder_Attach);
encoder.Detach += new DetachEventHandler(encoder_Detach);
encoder.Error += new ErrorEventHandler(encoder_Error);
//Hook the phidget specific event handlers
encoder.InputChange += new InputChangeEventHandler(encoder_InputChange);
encoder.PositionChange += new EncoderPositionChangeEventHandler
(encoder_PositionChange);
//open the object for connections
encoder.open();
//Wait for an encoder device to be attached before continuing
Console.WriteLine("Waiting for Encoder to be attached....");
encoder.waitForAttachment();
//Wait for user input before continuing so that we can see the events
//being sent when using the encoder
Console.WriteLine("Press any key to end...");
Console.Read();
//Since user input is read we can terminate the program, so we'll close
//the encoder object
encoder.close();
//set the object to null to get it out of memory
encoder = null;
//if no expcetions where thrown at this point it is safe to terminate
Console.WriteLine("ok");
}
catch (PhidgetException ex)
{
Console.WriteLine(ex.Description);
}
}
