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Annotation of mstools/ole20/samples/dspcalc2/dspcalc2.h, revision 1.1

1.1     ! root        1: /*** 
        !             2: *dspcalc2.h
        !             3: *
        !             4: *  Copyright (C) 1992, Microsoft Corporation.  All Rights Reserved.
        !             5: *  Information Contained Herein Is Proprietary and Confidential.
        !             6: *
        !             7: *Purpose:
        !             8: *  UNDONE
        !             9: *
        !            10: *
        !            11: *Implementation Notes:
        !            12: *
        !            13: *****************************************************************************/
        !            14: 
        !            15: #include "clsid.h" 
        !            16: 
        !            17: /* 
        !            18:  * UNDONE: Shouldn't have to do this.
        !            19:  */
        !            20: typedef BOOL boolean;
        !            21: 
        !            22: /* 
        !            23:  * The .h file included below is created via MkTypLib
        !            24:  */
        !            25: #include "calctype.h"
        !            26: 
        !            27: #pragma warning(disable:4355)
        !            28: 
        !            29: #define DIM(X) (sizeof(X)/sizeof(X[0]))
        !            30: 
        !            31: 
        !            32: class FAR CCalc : public IUnknown {
        !            33: public:
        !            34:     static CCalc FAR* Create();
        !            35: 
        !            36:     STDMETHOD(QueryInterface)(REFIID riid, void FAR* FAR* ppv);
        !            37:     STDMETHOD_(ULONG, AddRef)(void);
        !            38:     STDMETHOD_(ULONG, Release)(void);
        !            39: 
        !            40:     // Introduced "calculator" interface
        !            41:     //
        !            42:     // This nested class implementes core arithmetic functionality
        !            43:     // (such as it is) *and* is the interface that will be exposed via
        !            44:     // IDispatch for external programmability.
        !            45:     //
        !            46:     class FAR CArith : _Calculator {
        !            47:     public:
        !            48: 
        !            49:       /* IUnknown methods */
        !            50:       STDMETHOD(QueryInterface)(THIS_ REFIID riid, LPVOID FAR * ppvObj);
        !            51:       STDMETHOD_(ULONG, AddRef)(THIS);
        !            52:       STDMETHOD_(ULONG, Release)(THIS);
        !            53: 
        !            54:       /* _Calculator methods */
        !            55:       STDMETHOD_(void, put_Accum)(long l);
        !            56:       STDMETHOD_(long, get_Accum)(void);
        !            57:       STDMETHOD_(void, put_Opnd)(long l);
        !            58:       STDMETHOD_(long, get_Opnd)(void);
        !            59:       STDMETHOD_(void, put_Op)(short op);
        !            60:       STDMETHOD_(short, get_Op)(void);
        !            61:       STDMETHOD_(boolean, Eval)(void);
        !            62:       STDMETHOD_(void, Clear)(void);
        !            63:       STDMETHOD_(void, Display)(void);
        !            64:       STDMETHOD_(void, Quit)(void);
        !            65:       STDMETHOD_(BOOL, Button)(BSTR button);
        !            66: 
        !            67:       // the following method is internal, and not exposed for programmability
        !            68:       BOOL ButtonPush(int button);
        !            69: 
        !            70:       CArith(CCalc FAR* pcalc){
        !            71:         m_pcalc = pcalc;
        !            72:         Clear();
        !            73:       }
        !            74: 
        !            75:       enum states { STATE_LOPND, STATE_OP, STATE_ROPND, STATE_EVAL };
        !            76: 
        !            77:     private:
        !            78:       CCalc FAR* m_pcalc;
        !            79: 
        !            80:       short    m_op;
        !            81:       long     m_opnd;
        !            82:       long     m_accum;
        !            83:       enum states m_state;
        !            84:     };
        !            85:     friend CArith;
        !            86:     CArith m_arith;
        !            87: 
        !            88: 
        !            89:     HWND m_hwnd;
        !            90: 
        !            91:     CCalc() : m_arith(this)
        !            92:     {
        !            93:       m_refs = 1;
        !            94:       m_hwnd = 0;
        !            95:       m_punkStdDisp = NULL;
        !            96:     }
        !            97: 
        !            98: private:
        !            99:     ULONG m_refs;
        !           100:     IUnknown FAR* m_punkStdDisp;
        !           101: };
        !           102: 
        !           103: 
        !           104: // the CCalc Class Factory
        !           105: //
        !           106: class FAR CCalcCF : public IClassFactory {
        !           107: public:
        !           108:     static IClassFactory FAR* Create();
        !           109: 
        !           110:     STDMETHOD(QueryInterface)(REFIID riid, void FAR* FAR* ppv);
        !           111:     STDMETHOD_(ULONG, AddRef)(void);
        !           112:     STDMETHOD_(ULONG, Release)(void);
        !           113: 
        !           114:     STDMETHOD(CreateInstance)(
        !           115:       IUnknown FAR* punkOuter, REFIID riid, void FAR* FAR* ppv);
        !           116:     STDMETHOD(LockServer)(BOOL fLock);
        !           117: 
        !           118:     CCalcCF() { m_refs = 1; }
        !           119: 
        !           120: private:
        !           121:     ULONG m_refs;
        !           122: };

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