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Annotation of mstools/ole20/samples/spoly2/cfpoint.cpp, revision 1.1.1.1

1.1       root        1: /*** 
                      2: *CFPoint.cpp - The CPoint Class Factory.
                      3: *
                      4: *  Copyright (C) 1992, Microsoft Corporation.  All Rights Reserved.
                      5: *  Information Contained Herein Is Proprietary and Confidential.
                      6: *
                      7: *Purpose:
                      8: *  This module implements the CPoint class factory.
                      9: *
                     10: *Implementation Notes:
                     11: *
                     12: *****************************************************************************/
                     13: 
                     14: #include <windows.h>
                     15: #include <ole2.h>
                     16: #include <dispatch.h>
                     17: 
                     18: #include "spoly.h"
                     19: #include "cpoint.h"
                     20: 
                     21: 
                     22: CPointCF::CPointCF()
                     23: {
                     24:     m_refs = 0;
                     25: }
                     26: 
                     27: 
                     28: CPointCF::~CPointCF()
                     29: {
                     30: }
                     31: 
                     32: 
                     33: IClassFactory FAR*
                     34: CPointCF::Create()
                     35: {
                     36:     CPointCF FAR* pCF;
                     37: 
                     38:     if((pCF = new FAR CPointCF()) == NULL)
                     39:       return NULL;
                     40:     pCF->AddRef();
                     41:     return pCF;
                     42: }
                     43: 
                     44: 
                     45: //---------------------------------------------------------------------
                     46: //                     IUnknown Methods
                     47: //---------------------------------------------------------------------
                     48: 
                     49: 
                     50: STDMETHODIMP
                     51: CPointCF::QueryInterface(REFIID riid, void FAR* FAR* ppv) 
                     52: {
                     53:     if(riid == IID_IUnknown || riid == IID_IClassFactory){
                     54:       *ppv = this;
                     55:       ++m_refs;
                     56:       return NOERROR;
                     57:     }
                     58:     *ppv = NULL;
                     59:     return ResultFromScode(E_NOINTERFACE);
                     60: }
                     61: 
                     62: STDMETHODIMP_(ULONG)
                     63: CPointCF::AddRef(void)
                     64: {
                     65:     return ++m_refs;
                     66: }
                     67: 
                     68: STDMETHODIMP_(ULONG)
                     69: CPointCF::Release(void)
                     70: {
                     71:     if(--m_refs == 0){
                     72:       delete this;
                     73:       return 0;
                     74:     }
                     75:     return m_refs;
                     76: }
                     77: 
                     78: 
                     79: //---------------------------------------------------------------------
                     80: //                   IClassFactory Methods
                     81: //---------------------------------------------------------------------
                     82: 
                     83: 
                     84: STDMETHODIMP
                     85: CPointCF::CreateInstance(
                     86:     IUnknown FAR* pUnkOuter,
                     87:     REFIID riid,
                     88:     void FAR* FAR* ppv)
                     89: {
                     90:     HRESULT hresult;
                     91:     CPoint FAR *ppoint;
                     92: 
                     93:     if((ppoint = CPoint::Create()) == NULL){
                     94:       *ppv = NULL;
                     95:       return ResultFromScode(E_OUTOFMEMORY);
                     96:     }
                     97:     hresult = ppoint->QueryInterface(riid, ppv);
                     98:     ppoint->Release();
                     99:     return hresult;
                    100: }
                    101: 
                    102: 
                    103: STDMETHODIMP
                    104: CPointCF::LockServer(BOOL fLock)
                    105: {
                    106:     return NOERROR;
                    107: }

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