Using COM Objects in Scripting Languages -- Part 2 (Python)

// GraphicPoint.h : Declaration of the CGraphicPoint

#pragma once
#include "resource.h"       // main symbols

#include "SimpleCOM_i.h"

#if defined(_WIN32_WCE) && !defined(_CE_DCOM) && !defined(_CE_ALLOW_SINGLE_THREADED_OBJECTS_IN_MTA)
#error "Single-threaded COM objects are not properly supported on Windows CE platform, such as the Windows Mobile platforms that do not include full DCOM support. Define _CE_ALLOW_SINGLE_THREADED_OBJECTS_IN_MTA to force ATL to support creating single-thread COM object's and allow use of it's single-threaded COM object implementations. The threading model in your rgs file was set to 'Free' as that is the only threading model supported in non DCOM Windows CE platforms."
#endif

#include <cmath>

// CGraphicPoint

class ATL_NO_VTABLE CGraphicPoint :
	public CComObjectRootEx<CComSingleThreadModel>,
	public CComCoClass<CGraphicPoint, &CLSID_GraphicPoint>,
	public IDispatchImpl<IGraphicPoint, &IID_IGraphicPoint, &LIBID_SimpleCOMLib, /*wMajor =*/ 1, /*wMinor =*/ 0>,
	public IDispatchImpl<IColor, &__uuidof(IColor), &LIBID_SimpleCOMLib, /* wMajor = */ 1, /* wMinor = */ 0>,
	public IDispatchImpl<IPoint, &__uuidof(IPoint), &LIBID_SimpleCOMLib, /* wMajor = */ 1, /* wMinor = */ 0>
{
public:
	CGraphicPoint() :
	  m_dX(0)
		  ,m_dY(0)
		  ,m_dZ(0)
	{
	}

	DECLARE_REGISTRY_RESOURCEID(IDR_GRAPHICPOINT)


	BEGIN_COM_MAP(CGraphicPoint)
		COM_INTERFACE_ENTRY(IGraphicPoint)
		COM_INTERFACE_ENTRY2(IDispatch, IColor)
		COM_INTERFACE_ENTRY(IColor)
		COM_INTERFACE_ENTRY(IPoint)
	END_COM_MAP()



	DECLARE_PROTECT_FINAL_CONSTRUCT()

	HRESULT FinalConstruct()
	{
		return S_OK;
	}

	void FinalRelease()
	{
	}

private:
	double m_dX;
	double m_dY;
	double m_dZ;
	OLE_COLOR m_Color;

public:

	STDMETHOD(Draw)(void);

	// IColor Methods
public:
	STDMETHOD(SetColor)( OLE_COLOR iColor )
	{
		m_Color = iColor;
		return S_OK;
	}
	STDMETHOD(GetColor)( OLE_COLOR* oColor )
	{
		*oColor = m_Color;
		return S_OK;
	}

	// IPoint Methods
public:
	STDMETHOD(get_X)( DOUBLE * pVal)
	{
		AFX_MANAGE_STATE(AfxGetStaticModuleState());
		*pVal = m_dX;
		return S_OK;
	}
	STDMETHOD(put_X)( DOUBLE newVal)
	{
		AFX_MANAGE_STATE(AfxGetStaticModuleState());
		m_dX = newVal;
		return S_OK;
	}
	STDMETHOD(get_Y)( DOUBLE * pVal)
	{
		AFX_MANAGE_STATE(AfxGetStaticModuleState());
		*pVal = m_dY;
		return S_OK;
	}
	STDMETHOD(put_Y)( DOUBLE newVal)
	{
		AFX_MANAGE_STATE(AfxGetStaticModuleState());
		m_dY = newVal;
		return S_OK;
	}
	STDMETHOD(get_Z)( DOUBLE * pVal)
	{
		AFX_MANAGE_STATE(AfxGetStaticModuleState());
		*pVal = m_dZ;
		return S_OK;
	}
	STDMETHOD(put_Z)( DOUBLE newVal)
	{
		AFX_MANAGE_STATE(AfxGetStaticModuleState());
		m_dZ = newVal;
		return S_OK;
	}
	STDMETHOD(Distance)( IPoint * iPoint,  DOUBLE * oDist)
	{
		AFX_MANAGE_STATE(AfxGetStaticModuleState());
		double x, y, z;
		iPoint->GetCoord(&x, &y, &z);
		*oDist  = (DOUBLE)sqrt(pow(m_dX - x, 2) + pow(m_dY - y, 2) + pow(m_dZ - z, 2));
		return S_OK;
	}
	STDMETHOD(SetCoord)(DOUBLE iX, DOUBLE iY, DOUBLE iZ);
	STDMETHOD(GetCoord)(DOUBLE* oX, DOUBLE* oY, DOUBLE* oZ);
};

OBJECT_ENTRY_AUTO(__uuidof(GraphicPoint), CGraphicPoint)