CPOINT.H

/***  
*cpoint.h 
* 
*  This is a part of the Microsoft Source Code Samples. 
* 
*  Copyright 1992 - 1998 Microsoft Corporation. All rights reserved. 
* 
*  This source code is only intended as a supplement to Microsoft Development 
*  Tools and/or WinHelp documentation.  See these sources for detailed 
*  information regarding the Microsoft samples programs. 
* 
*Purpose: 
*  Definition of the CPoint class. 
* 
*  The CPoint object exposes two properties for programatic access 
*  via the IDispatch interface. 
* 
*  properties: 
*    X - the 'x' coordinate of the point 
*    Y - the 'y' coordinate of the point 
* 
*Implementation Notes: 
* 
*****************************************************************************/ 
 
#ifndefCLASS 
#ifdef__TURBOC__ 
#define CLASS class huge 
#else 
#define CLASS class FAR 
#endif 
#endif 
 
class CPoly; 
 
CLASS CPoint : public IDispatch { 
    friend class CPoly; 
 
public: 
    static CPoint FAR* Create(); 
 
    /* IUnknown methods */ 
    STDMETHOD(QueryInterface)(REFIID riid, void FAR* FAR* ppvObj); 
    STDMETHOD_(unsigned long, AddRef)(void); 
    STDMETHOD_(unsigned long, Release)(void); 
 
    /* IDispatch methods */ 
    STDMETHOD(GetTypeInfoCount)(unsigned int FAR* pcTypeInfo); 
 
    STDMETHOD(GetTypeInfo)( 
      unsigned int iTypeInfo, 
      LCID lcid, 
      ITypeInfo FAR* FAR* ppTypeInfo); 
 
    STDMETHOD(GetIDsOfNames)( 
      REFIID riid, 
      OLECHAR FAR* FAR* rgszNames, 
      unsigned int cNames, 
      LCID lcid, 
      DISPID FAR* rgdispid); 
 
    STDMETHOD(Invoke)( 
      DISPID dispidMember, 
      REFIID riid, 
      LCID lcid, 
      unsigned short wFlags, 
      DISPPARAMS FAR* pdispparams, 
      VARIANT FAR* pvarResult, 
      EXCEPINFO FAR* pexcepinfo, 
      unsigned int FAR* pwArgErr); 
 
    /* Introduced methods */ 
 
    virtual short METHODCALLTYPE EXPORT GetX(void); 
    virtual void  METHODCALLTYPE EXPORT SetX(short x); 
    virtual short METHODCALLTYPE EXPORT GetY(void); 
    virtual void  METHODCALLTYPE EXPORT SetY(short y); 
 
private: 
    CPoint(); 
 
    unsigned long m_refs; 
 
    short m_x; 
    short m_y; 
 
    ITypeInfo FAR* m_ptinfo; 
}; 
 
// member DISPIDs 
// 
enum IDMEMBER_CPOINT { 
    IDMEMBER_CPOINT_GETX = 1, 
    IDMEMBER_CPOINT_SETX, 
    IDMEMBER_CPOINT_GETY, 
    IDMEMBER_CPOINT_SETY, 
    IDMEMBER_CPOINT_MAX 
}; 
 
// member indices - this is an enumeration of all members on CPoint 
// 
enum IMETH_CPOINT { 
    IMETH_CPOINT_QUERYINTERFACE = 0, 
    IMETH_CPOINT_ADDREF, 
    IMETH_CPOINT_RELEASE, 
    IMETH_CPOINT_GETTYPEINFOCOUNT, 
    IMETH_CPOINT_GETTYPEINFO, 
    IMETH_CPOINT_GETIDSOFNAMES, 
    IMETH_CPOINT_INVOKE, 
 
    IMETH_CPOINT_GETX, 
    IMETH_CPOINT_SETX, 
    IMETH_CPOINT_GETY, 
    IMETH_CPOINT_SETY 
}; 
 
// structure used to link together lists of points 
// 
struct POINTLINK { 
    POINTLINK FAR* next; 
    CPoint FAR* ppoint; 
}; 
 
 
// The CPoint Class Factory 
// 
CLASS CPointCF : public IClassFactory 
{ 
public: 
    static IClassFactory FAR* Create(); 
 
    /* IUnknown methods */ 
    STDMETHOD(QueryInterface)(REFIID iid, void FAR* FAR* ppv); 
    STDMETHOD_(unsigned long, AddRef)(void); 
    STDMETHOD_(unsigned long, Release)(void); 
 
    /* IClassFactory methods */ 
    STDMETHOD(CreateInstance)( 
      IUnknown FAR* pUnkOuter, REFIID iid, void FAR* FAR* ppv); 
#ifdef _MAC 
    STDMETHOD(LockServer)(unsigned long fLock); 
#else 
    STDMETHOD(LockServer)(BOOL fLock); 
#endif 
 
private: 
    CPointCF(); 
 
    unsigned long m_refs; 
};