////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Throws an exception if callback_I is null.
/// </summary>
/// <param name="callback_I">callback function used by MTAPI to send touch data</param>
protected void ThrowIfInvalidCallback(ref WacomMTCallback callback_I)
{
if (callback_I == null)
{
throw new Exception("Oops - null callback");
}
}
////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Registers an MTAPI raw data client over the entire tablet surface
/// (no hitrect or HWND required).
/// </summary>
/// <param name="deviceID_I">touch device identifier</param>
/// <param name="callback_I">callback function used by MTAPI to send touch data</param>
/// <param name="userData_I">custom user data</param>
public void RegisterClient(Int32 deviceID_I,
ref WacomMTCallback callback_I, IntPtr userData_I)
{
try
{
InitWacomMTClientParams(deviceID_I, ref callback_I, userData_I);
WacomMTError res = CWacomMTInterface.WacomMTRegisterRawReadCallback(
mDeviceID, mClientMode, mTouchCallback, mUserData);
if (WacomMTError.WMTErrorSuccess != res)
{
String errMsg = "Oops - failed WacomMTRegisterRawReadCallback with error: " + res.ToString();
throw new Exception(errMsg);
}
#if TRACE_CLIENT
DumpClient("RegisterClient");
#endif //TRACE_CLIENT
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Initalize MTAPI client parameters
/// </summary>
/// <param name="deviceID_I">touch device identifier</param>
/// <param name="callback_I">callback function used by MTAPI to send touch data</param>
/// <param name="userData_I">custom user data</param>
protected void InitWacomMTClientParams(Int32 deviceID_I, ref WacomMTCallback callback_I, IntPtr userData_I)
{
ThrowIfInvalidDeviceID(deviceID_I);
mDeviceID = deviceID_I;
ThrowIfInvalidCallback(ref callback_I);
mTouchCallback = callback_I;
mUserData = userData_I;
}
////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Sets/verifies MTAPI hitrect client params.
/// </summary>
/// <param name="deviceID_I">touch device identifier</param>
/// <param name="hitrect_I">rectangle tracked by MTAPI for touch contacts</param>
/// <param name="callback_I">callback function used by MTAPI to send touch data</param>
/// <param name="userData_I">custom user data</param>s
protected void InitWacomMTHitRectClientParams(Int32 deviceID_I,
WacomMTHitRect hitrect_I, ref WacomMTCallback callback_I, IntPtr userData_I)
{
InitWacomMTClientParams(deviceID_I, ref callback_I, userData_I);
ThrowIfInvalidHitRect(ref hitrect_I);
mHitRect = hitrect_I;
}
private void Form1_Load(object sender, EventArgs e)
{
WacomMTError status = WacomMTError.WMTErrorSuccess;
IntPtr userDataBuf = IntPtr.Zero;
try
{
mWacomMTConfig.Init();
//Delegate called when events come to tablet
mUpdateRealTimeLabel = new UpdateDelegate(this.DoUpdateGraphicsControl);
mUpdateRealTimeLabel += this.DoSendMidiMessage;
// crée un nouveau callback attach et abonne a ce callback
mAttachCallback = new WacomMTAttachCallback(this.DoAttachWindowClientCallback);
status = CWacomMTInterface.WacomMTRegisterAttachCallback(this.mAttachCallback, IntPtr.Zero);
if (status != WacomMTError.WMTErrorSuccess)
{
throw new Exception("Failed to register for device attaches - err: " + status.ToString());
}
// crée un nouveau callback detack et abonne a ce callback
mDetachCallback = new WacomMTDetachCallback(this.DoDetachWindowClientCallback);
status = CWacomMTInterface.WacomMTRegisterDetachCallback(this.mDetachCallback, IntPtr.Zero);
if (status != WacomMTError.WMTErrorSuccess)
{
throw new Exception("Failed to register for device detaches - err: " + status.ToString());
}
//crée un nouveau callback de type Finger Read et abonne a celui-ci
WacomMTHitRect HR = new WacomMTHitRect(0, 0, 0, 0);
mTouchDataCallback = new WacomMTCallback(this.DoFingerDataUpdateCallback);
status = CWacomMTInterface.WacomMTRegisterFingerReadCallback(0, ref HR, _processingMode,
mTouchDataCallback, IntPtr.Zero);
UpdateLabelText();
}
catch (Exception ex)
{
MessageBox.Show("Error : " + ex.ToString());
}
}
// -------------------------------------------------------------------------
// HitRect methods
// -------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Registers an MTAPI windowed client using a hitrect.
/// </summary>
/// <param name="deviceID_I">touch device identifier</param>
/// <param name="hitrect_I">rectangle tracked by MTAPI for touch contacts</param>
/// <param name="callback_I">callback function used by MTAPI to send touch data</param>
/// <param name="userData_I">custom user data</param>
public void RegisterHitRectClient(Int32 deviceID_I, WacomMTHitRect hitrect_I,
ref WacomMTCallback callback_I, IntPtr userData_I)
{
try
{
InitWacomMTHitRectClientParams(deviceID_I, hitrect_I, ref callback_I, userData_I);
WacomMTError res = DoRegisterHitRectCallback();
if (WacomMTError.WMTErrorSuccess != res)
{
String errMsg = "Oops - failed DoRegisterHitRectCallback with error: " + res.ToString();
throw new Exception(errMsg);
}
#if TRACE_CLIENT
DumpClient("RegisterHitRectClient");
#endif //TRACE_CLIENT
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
private void Form1_Load(object sender, EventArgs e)
{
WacomMTError status = WacomMTError.WMTErrorSuccess;
IntPtr userDataBuf = IntPtr.Zero;
try
{
mWacomMTConfig.Init();
//Delegate called when events come to tablet
mUpdateRealTimeLabel = new UpdateDelegate(this.DoUpdateGraphicsControl);
mUpdateRealTimeLabel += this.DoSendMidiMessage;
// crée un nouveau callback attach et abonne a ce callback
mAttachCallback = new WacomMTAttachCallback(this.DoAttachWindowClientCallback);
status = CWacomMTInterface.WacomMTRegisterAttachCallback(this.mAttachCallback, IntPtr.Zero);
if (status != WacomMTError.WMTErrorSuccess)
{
throw new Exception("Failed to register for device attaches - err: " + status.ToString());
}
// crée un nouveau callback detack et abonne a ce callback
mDetachCallback = new WacomMTDetachCallback(this.DoDetachWindowClientCallback);
status = CWacomMTInterface.WacomMTRegisterDetachCallback(this.mDetachCallback, IntPtr.Zero);
if (status != WacomMTError.WMTErrorSuccess)
{
throw new Exception("Failed to register for device detaches - err: " + status.ToString());
}
//crée un nouveau callback de type Finger Read et abonne a celui-ci
WacomMTHitRect HR = new WacomMTHitRect(0, 0, 0, 0);
mTouchDataCallback = new WacomMTCallback(this.DoFingerDataUpdateCallback);
status = CWacomMTInterface.WacomMTRegisterFingerReadCallback(0, ref HR, _processingMode,
mTouchDataCallback, IntPtr.Zero);
UpdateLabelText();
}
catch (Exception ex)
{
MessageBox.Show("Error : " + ex.ToString());
}
}
////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Clears MTAPI client parameters
/// </summary>
protected void ClearWacomMTClientParams()
{
mDeviceID = -1;
mTouchCallback = null;
mUserData = IntPtr.Zero;
}
