6 #include "MyWindows.h"
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8 #define RINOK(x) { HRESULT __result_ = (x); if(__result_ != S_OK) return __result_; }
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15 // typedef T _PtrClass;
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16 CMyComPtr() { _p = NULL;}
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17 CMyComPtr(T* p) {if ((_p = p) != NULL) p->AddRef(); }
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18 CMyComPtr(const CMyComPtr<T>& lp)
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20 if ((_p = lp._p) != NULL)
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23 ~CMyComPtr() { if (_p) _p->Release(); }
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24 void Release() { if (_p) { _p->Release(); _p = NULL; } }
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25 operator T*() const { return (T*)_p; }
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26 // T& operator*() const { return *_p; }
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27 T** operator&() { return &_p; }
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28 T* operator->() const { return _p; }
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38 T* operator=(const CMyComPtr<T>& lp) { return (*this = lp._p); }
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39 bool operator!() const { return (_p == NULL); }
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40 // bool operator==(T* pT) const { return _p == pT; }
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41 // Compare two objects for equivalence
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54 HRESULT CoCreateInstance(REFCLSID rclsid, REFIID iid, LPUNKNOWN pUnkOuter = NULL, DWORD dwClsContext = CLSCTX_ALL)
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56 return ::CoCreateInstance(rclsid, pUnkOuter, dwClsContext, iid, (void**)&_p);
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60 HRESULT CoCreateInstance(LPCOLESTR szProgID, LPUNKNOWN pUnkOuter = NULL, DWORD dwClsContext = CLSCTX_ALL)
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63 HRESULT hr = CLSIDFromProgID(szProgID, &clsid);
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64 ATLASSERT(_p == NULL);
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66 hr = ::CoCreateInstance(clsid, pUnkOuter, dwClsContext, __uuidof(T), (void**)&_p);
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71 HRESULT QueryInterface(REFGUID iid, Q** pp) const
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73 return _p->QueryInterface(iid, (void**)pp);
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77 //////////////////////////////////////////////////////////
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83 CMyComBSTR() { m_str = NULL; }
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84 CMyComBSTR(LPCOLESTR pSrc) { m_str = ::SysAllocString(pSrc); }
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85 // CMyComBSTR(int nSize) { m_str = ::SysAllocStringLen(NULL, nSize); }
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86 // CMyComBSTR(int nSize, LPCOLESTR sz) { m_str = ::SysAllocStringLen(sz, nSize); }
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87 CMyComBSTR(const CMyComBSTR& src) { m_str = src.MyCopy(); }
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89 CMyComBSTR(REFGUID src)
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92 StringFromCLSID(src, &szGuid);
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93 m_str = ::SysAllocString(szGuid);
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94 CoTaskMemFree(szGuid);
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97 ~CMyComBSTR() { ::SysFreeString(m_str); }
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98 CMyComBSTR& operator=(const CMyComBSTR& src)
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100 if (m_str != src.m_str)
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103 ::SysFreeString(m_str);
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104 m_str = src.MyCopy();
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108 CMyComBSTR& operator=(LPCOLESTR pSrc)
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110 ::SysFreeString(m_str);
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111 m_str = ::SysAllocString(pSrc);
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114 unsigned int Length() const { return ::SysStringLen(m_str); }
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115 operator BSTR() const { return m_str; }
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116 BSTR* operator&() { return &m_str; }
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117 BSTR MyCopy() const
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119 int byteLen = ::SysStringByteLen(m_str);
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120 BSTR res = ::SysAllocStringByteLen(NULL, byteLen);
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121 memmove(res, m_str, byteLen);
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124 void Attach(BSTR src) { m_str = src; }
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133 ::SysFreeString(m_str);
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136 bool operator!() const { return (m_str == NULL); }
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140 //////////////////////////////////////////////////////////
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142 class CMyUnknownImp
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145 ULONG __m_RefCount;
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146 CMyUnknownImp(): __m_RefCount(0) {}
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149 #define MY_QUERYINTERFACE_BEGIN STDMETHOD(QueryInterface) \
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150 (REFGUID iid, void **outObject) {
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152 #define MY_QUERYINTERFACE_ENTRY(i) if (iid == IID_ ## i) \
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153 { *outObject = (void *)(i *)this; AddRef(); return S_OK; }
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155 #define MY_QUERYINTERFACE_END return E_NOINTERFACE; }
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157 #define MY_ADDREF_RELEASE \
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158 STDMETHOD_(ULONG, AddRef)() { return ++__m_RefCount; } \
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159 STDMETHOD_(ULONG, Release)() { if (--__m_RefCount != 0) \
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160 return __m_RefCount; delete this; return 0; }
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162 #define MY_UNKNOWN_IMP_SPEC(i) \
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163 MY_QUERYINTERFACE_BEGIN \
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165 MY_QUERYINTERFACE_END \
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169 #define MY_UNKNOWN_IMP STDMETHOD(QueryInterface)(REFGUID, void **) { \
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170 MY_QUERYINTERFACE_END \
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173 #define MY_UNKNOWN_IMP1(i) MY_UNKNOWN_IMP_SPEC( \
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174 MY_QUERYINTERFACE_ENTRY(i) \
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177 #define MY_UNKNOWN_IMP2(i1, i2) MY_UNKNOWN_IMP_SPEC( \
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178 MY_QUERYINTERFACE_ENTRY(i1) \
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179 MY_QUERYINTERFACE_ENTRY(i2) \
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182 #define MY_UNKNOWN_IMP3(i1, i2, i3) MY_UNKNOWN_IMP_SPEC( \
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183 MY_QUERYINTERFACE_ENTRY(i1) \
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184 MY_QUERYINTERFACE_ENTRY(i2) \
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185 MY_QUERYINTERFACE_ENTRY(i3) \
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188 #define MY_UNKNOWN_IMP4(i1, i2, i3, i4) MY_UNKNOWN_IMP_SPEC( \
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189 MY_QUERYINTERFACE_ENTRY(i1) \
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190 MY_QUERYINTERFACE_ENTRY(i2) \
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191 MY_QUERYINTERFACE_ENTRY(i3) \
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192 MY_QUERYINTERFACE_ENTRY(i4) \
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195 #define MY_UNKNOWN_IMP5(i1, i2, i3, i4, i5) MY_UNKNOWN_IMP_SPEC( \
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196 MY_QUERYINTERFACE_ENTRY(i1) \
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197 MY_QUERYINTERFACE_ENTRY(i2) \
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198 MY_QUERYINTERFACE_ENTRY(i3) \
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199 MY_QUERYINTERFACE_ENTRY(i4) \
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200 MY_QUERYINTERFACE_ENTRY(i5) \
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