> For the complete documentation index, see [llms.txt](https://developer.magtek.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.magtek.com/hardware/oem-readers-and-components/oem-readers/odynamo/documentation/programmers-manuals/common-message-structure-mtcms-microsoft-.net-java-applet/appendix-a-code-examples-.net.md).

# Appendix A Code Examples (.NET)

#### Initialize Device

<pre><code>MTDevice device = new MTDevice(); if (device != null)
{
        device.setConnectionType(MTConnectionType.USB);
<strong>
</strong><strong>        device += OnDeviceConnectionStateChanged; 
</strong><strong>        device += onDeviceResponseMessage; 
</strong><strong>        device += onDeviceNotificationMessage;
</strong>}
</code></pre>

#### Connect to Device

```
if (device != null)
{
device.openDevice();
}
```

#### Send Data String to Device

```
String dataString = “C00101C10100C20114”; 
device.sendDataString(dataString);
```

#### Send Data Bytes to Device

```
Byte[] dataBytes = new Byte[9] {0xC0,0x01,0x01,
                                0xC1,0x01,0x00,
                                0xC2,0x01,0x14};
device.sendDataBytes(dataBytes);
```

#### Send MTCMSMessage to Device

```
MTCMSMessage message = new MTCMSMessage(0x01,0x00,0x14, 0xC4, null); 
device.sendMTCMSMessage(message);
```

#### Send MTCMSRequestMessage to Device

```
MTCMSRequestMessage request = new MTCMSRequestMessage
                                (0x00,0x14, 0xC4, false);
device.sendMTCMSMessage(request);
```

#### Receiving Connection State Updates from Device

```
protected void OnDeviceConnectionStateChanged(object sender, 
MTConnectionState state)
{
    if (state == MTConnectionState.Connected)
    {
        sendToDisplay(“Device is Connected”);
    }
    else if (state == MTConnectionState.Disconnected)
    {
        sendToDisplay(“Device is Disconnected”);
    }
}
```

#### Receiving Response Message from Device

```
protected void OnDeviceResponseMessage(object sender, 
MTCMSResponseMessage response)
{
        sendToDisplay(“[Response Message]” 
        sendToDisplay(“AppID: ” + response.getApplicationID()); 
        sendToDisplay(“CommandID: ” + response.getCommandID());
        sendToDisplay(“ResultCode: ” + response.getResultCode());
}
```

#### Receiving Notification Message from Device

```
protected void OnDeviceNotificationMessage(object sender, 
MTCMSNotificationMessage notification)
{
        sendToDisplay(“[Notification Message]” 
        sendToDisplay(“AppID: ” notification. getApplicationID() ); 
        sendToDisplay(“CommandID: ” + notification.getCommandID());
        sendToDisplay(“ResultCode: ” + notification.getResultCode());
}
```

#### Close Device

```
if (device != null)
{
        device.closeDevice();
}
```


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