2D Graph ActiveX Control in C++ with ATL (No MFC Dependency)

/////////////////////////////////////////////////////////////////////////////
// (c) Copyright The Code Project Open License (CPOL)
//  http://www.codeproject.com/info/cpol10.aspx
//
//  Marius Samoila, Nikolai Teofilov, 2011
//
// FILE NAME
//		DMGraphCP.h: Declaration of the CProxy_IDMGraphCtrlEvents class
//
// CLASS NAME
//		CProxy_IDMGraphCtrlEvents
//
// DESCRIPTION
// 
// MODIFICATIONS
//		01-Dec-2011 MSamoila created by the wizard
//

#ifndef _DMGRAPHCP_H_
#define _DMGRAPHCP_H_


template <class T>
class CProxy_IDMGraphCtrlEvents : public IConnectionPointImpl<T, &DIID__IDMGraphCtrlEvents, CComDynamicUnkArray>
{
	//Warning this class may be recreated by the wizard.
public:
	VOID Fire_CursorPosition(DOUBLE x, DOUBLE y)
	{
		T* pT = static_cast<T*>(this);
		int nConnectionIndex;
		CComVariant* pvars = new CComVariant[2];
		int nConnections = m_vec.GetSize();
		
		for (nConnectionIndex = 0; nConnectionIndex < nConnections; nConnectionIndex++)
		{
			pT->Lock();
			CComPtr<IUnknown> sp = m_vec.GetAt(nConnectionIndex);
			pT->Unlock();
			IDispatch* pDispatch = reinterpret_cast<IDispatch*>(sp.p);
			if (pDispatch != NULL)
			{
				pvars[1] = x;
				pvars[0] = y;
				DISPPARAMS disp = { pvars, NULL, 2, 0 };
				pDispatch->Invoke(0x1, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_METHOD, &disp, NULL, NULL, NULL);
			}
		}
		delete[] pvars;
	
	}
	VOID Fire_TrackModeChanged(TrackModeState lNewState)
	{
		T* pT = static_cast<T*>(this);
		int nConnectionIndex;
		CComVariant* pvars = new CComVariant[1];
		int nConnections = m_vec.GetSize();
		
		for (nConnectionIndex = 0; nConnectionIndex < nConnections; nConnectionIndex++)
		{
			pT->Lock();
			CComPtr<IUnknown> sp = m_vec.GetAt(nConnectionIndex);
			pT->Unlock();
			IDispatch* pDispatch = reinterpret_cast<IDispatch*>(sp.p);
			if (pDispatch != NULL)
			{
				pvars[0] = lNewState;
				DISPPARAMS disp = { pvars, NULL, 1, 0 };
				pDispatch->Invoke(0x2, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_METHOD, &disp, NULL, NULL, NULL);
			}
		}
		delete[] pvars;
	
	}
	VOID Fire_Click()
	{
		T* pT = static_cast<T*>(this);
		int nConnectionIndex;
		int nConnections = m_vec.GetSize();
		
		for (nConnectionIndex = 0; nConnectionIndex < nConnections; nConnectionIndex++)
		{
			pT->Lock();
			CComPtr<IUnknown> sp = m_vec.GetAt(nConnectionIndex);
			pT->Unlock();
			IDispatch* pDispatch = reinterpret_cast<IDispatch*>(sp.p);
			if (pDispatch != NULL)
			{
				DISPPARAMS disp = { NULL, NULL, 0, 0 };
				pDispatch->Invoke(DISPID_CLICK, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_METHOD, &disp, NULL, NULL, NULL);
			}
		}
	
	}
};
#endif