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francois |
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#ifndef SMARTVARS_H |
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#define SMARTVARS_H |
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#include <assert.h> |
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#ifdef __BORLANDC__ |
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#include <Atl/atlbase.h> |
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#endif |
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#ifdef VC71 |
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#include <atlbase.h> |
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#endif |
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/** |
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* |
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USAGE : |
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SafeBSTRArray names(1); |
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SafeLongArray types(1); |
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SafeBSTRArray vals(1); |
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names[0] = T2BSTR(_T("ReplaceFile")); |
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types[0] = swMacroFeatureParamTypeString; |
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vals[0] = m_replaceFile.AllocSysString(); |
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CComVariant paramNames = names; |
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CComVariant paramTypes = types; |
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CComVariant paramValues = vals; |
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LPDISPATCH outFeat = NULL; |
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HRESULT hres = m_Part->InsertComFeature(T2BSTR(_T("{04B74DF2-ACBA-4218-887A-F42140F312E0}")), |
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paramNames, paramTypes, paramValues, &outFeat); |
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if (outFeat) |
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outFeat->Release(); |
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*/ |
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template <class T,int type> class SafeArray |
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{ |
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public: |
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SafeArray(VARIANT *input): |
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m_input(input), |
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m_access(false), |
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m_bCreate(false), |
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m_pSafeArray(NULL), |
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m_arrayData(NULL), |
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m_result(S_OK) |
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{ |
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if (m_input != NULL) |
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{ |
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if (V_VT(m_input) != VT_EMPTY) |
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{ |
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m_pSafeArray = V_ARRAY (m_input); |
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m_result = SafeArrayAccessData ( m_pSafeArray, (void HUGEP**)&m_arrayData); |
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m_access = m_result == S_OK ; |
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} |
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else |
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m_access = true; |
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} |
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else |
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{ |
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assert(FALSE); |
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m_input = &m_target; |
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} |
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} |
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SafeArray(const VARIANT &input) : |
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m_access(true), |
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m_bCreate(false), |
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m_pSafeArray(NULL), |
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m_arrayData(NULL), |
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m_result(S_OK) |
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{ |
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m_input = (VARIANT *) &input; |
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if (V_VT(m_input) != VT_EMPTY) |
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{ |
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m_pSafeArray = V_ARRAY (m_input); |
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m_result = SafeArrayAccessData ( m_pSafeArray, (void HUGEP**)&m_arrayData); |
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m_access = m_result == S_OK ; |
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} |
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else |
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m_access = true; |
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} |
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SafeArray(unsigned int size,unsigned int dims = 1): |
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m_input(&m_target), |
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m_access(false), |
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m_bCreate(true), |
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m_pSafeArray(NULL), |
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m_arrayData(NULL), |
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m_result(S_OK) |
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{ |
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assert(size >= 0); |
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if (size > 0) |
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{ |
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m_rgsabound[0].lLbound = 0; |
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m_rgsabound[0].cElements = (int) size; |
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m_pSafeArray = SafeArrayCreate(type, (int)dims, m_rgsabound); |
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V_VT(m_input) = VT_ARRAY | type; |
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m_result = SafeArrayAccessData( m_pSafeArray, (void HUGEP**)&m_arrayData); |
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m_access = m_result == S_OK ; |
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if (!m_access) |
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V_VT(m_input) = VT_EMPTY; |
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} |
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else |
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{ |
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V_VT(m_input) = VT_EMPTY; |
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m_access = true; |
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} |
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} |
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inline HRESULT status() { |
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return m_result; |
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} |
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inline int getSize(int index = 0) { |
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return (m_access&&m_pSafeArray)?m_pSafeArray->rgsabound[index].cElements:0; |
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} |
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~SafeArray() { |
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UnaccessData(); |
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} |
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operator T* () { |
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assert(m_access); |
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return m_arrayData; |
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} |
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operator VARIANT () { |
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assert(m_access); |
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UnaccessData(); |
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return *m_input; |
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} |
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T & operator[](int i) { |
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assert(m_access&&m_arrayData); |
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return m_arrayData[i]; |
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} |
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private: |
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void UnaccessData() { |
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if (m_access) { |
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m_result = SafeArrayUnaccessData( m_pSafeArray ); |
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if (m_bCreate && m_result == S_OK) |
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V_ARRAY(m_input) = m_pSafeArray; |
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m_access = false; |
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} |
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} |
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bool m_bCreate; |
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bool m_access; |
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VARIANT *m_input; |
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VARIANT m_target; |
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T *m_arrayData ; |
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SAFEARRAY *m_pSafeArray; |
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SAFEARRAYBOUND m_rgsabound[1]; |
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HRESULT m_result; |
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}; |
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typedef SafeArray<double, VT_R8> SafeDoubleArray ; |
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typedef SafeArray<float, VT_R4> SafeFloatArray ; |
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typedef SafeArray<long, VT_I4> SafeLongArray ; |
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typedef SafeArray<BSTR, VT_BSTR> SafeBSTRArray ; |
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typedef SafeArray<LPDISPATCH, VT_DISPATCH> SafeDISPATCHArray; |
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typedef SafeArray<LPVARIANT, VT_VARIANT> SafeVARIANTArray; |
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typedef SafeArray<short, VT_I2> SafeBooleanArray; |
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/* |
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assing SafeArrays in C++ |
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Be careful when managing SafeArray memory. If you receive a SafeArray from the SolidWorks product, you are responsible for destroying it. Also, if you pass a SafeArray to the SolidWorks product, SolidWorks does not destroy the SafeArray; you are responsible for destroying it. |
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See: |
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Return Values for information and examples of handling SafeArray and VARIANT return values. |
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A template class for VARIANT SafeArrays on the SolidWorks API Support Web site, http://www.solidworks.com/pages/services/APITips.html. |
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*/ |
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#endif//SMARTVARS_H |
