# Appendix A	Code Examples

#### Connect to Device

```
openDevice();
```

#### Send Command String to Device

```
const char* dataString = “C00101C10100C20114”; 
sendDataString(dataString);
```

#### Send Command Bytes to Device

```
unsigned char* dataBytes =
{0xC0,0x01,0x01,0xC1,0x01,0x00,0xC2,0x01,0x14};

sendDataBytes(dataBytes,9);
```

#### Send MTCMSMessage to Device

```
MTCMSMessage* message = CreateMTCMSMessage(0x01,0x00,0x14, NULL,0, 
false);
sendMTCMSMessage(message); 
ReleaseMTCMSMessage(message);
```

#### Receiving Connection State Updates from Device

```
void _stdcall OnDeviceConnectionStateChanged(void* sender, 
MTConnectionState state)
{
        switch (state)
        {
        case MTConnectionState::Connected: 
                Log(_T("[Connected]")); 
                break;
        case MTConnectionState::Connecting: 
                Log(_T("[Connecting...]")); 
                break;
        case MTConnectionState::Disconnecting: 
                Log(_T("[Disconnecting...]")); 
                break;
        case MTConnectionState::Disconnected: 
                Log(_T("[Disconnected]")); 
                break;
        }
}
```

#### Receiving Response Message from Device

```
void  stdcall OnDeviceResponseMessage(void* sender, const 
MTCMSMessage* response)
{
    processResponseMessage(response);
}
```

#### Receiving Notification Message from Device

```
void  stdcall OnDeviceNotificationMessage(void* sender, const 
MTCMSMessage* notification)
{
    processNotificationMessage(notification);
}
```

#### Close Device <a href="#a.9_close_device" id="a.9_close_device"></a>

```
closeDevice();
```


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