86 lines
3.3 KiB
C
86 lines
3.3 KiB
C
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/*++
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Copyright (C) 1996-2001 Microsoft Corporation
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Module Name:
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OLEWRAP.H
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Abstract:
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Wrapper classes for COM data type functions.
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If a COM data function is required to allocate memory and fails to do
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so, then a CX_MemoryException exception is thrown. All COM data type
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functions are wrapped, regardless if they allocate memory, for the sake
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of completeness.
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History:
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a-dcrews 19-Mar-99 Created.
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--*/
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#ifndef _OLEWRAP_H_
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#define _OLEWRAP_H_
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class COleAuto
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{
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public:
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// Safe array methods
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// ==================
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static HRESULT _SafeArrayAccessData(SAFEARRAY* psa, void HUGEP** ppvData);
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static HRESULT _SafeArrayAllocData(SAFEARRAY* psa);
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static HRESULT _SafeArrayAllocDescriptor(unsigned int cDims, SAFEARRAY** ppsaOut);
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static HRESULT _SafeArrayCopy(SAFEARRAY* psa, SAFEARRAY** ppsaOut);
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static HRESULT _SafeArrayCopyData(SAFEARRAY* psaSource, SAFEARRAY* psaTarget);
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static SAFEARRAY* _SafeArrayCreate(VARTYPE vt, unsigned int cDims, SAFEARRAYBOUND* rgsabound);
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static SAFEARRAY* _SafeArrayCreateVector(VARTYPE vt, long lLbound, unsigned int cElements);
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static HRESULT _SafeArrayDestroy(SAFEARRAY* psa);
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static HRESULT _SafeArrayDestroyData(SAFEARRAY* psa);
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static HRESULT _SafeArrayDestroyDescriptor(SAFEARRAY* psa);
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static UINT _SafeArrayGetDim(SAFEARRAY* psa);
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static HRESULT _SafeArrayGetElement(SAFEARRAY* psa, long* rgIndices, void* pv);
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static UINT _SafeArrayGetElemsize(SAFEARRAY* psa);
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static HRESULT _SafeArrayGetLBound(SAFEARRAY* psa, unsigned int nDim, long* plLbound);
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static HRESULT _SafeArrayGetUBound(SAFEARRAY* psa, unsigned int nDim, long* plUbound);
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static HRESULT _SafeArrayLock(SAFEARRAY* psa);
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static HRESULT _SafeArrayPtrOfIndex(SAFEARRAY* psa, long* rgIndices, void HUGEP** ppvData);
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static HRESULT _SafeArrayPutElement(SAFEARRAY* psa, long* rgIndices, void* pv);
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static HRESULT _SafeArrayRedim(SAFEARRAY* psa, SAFEARRAYBOUND* psaboundNew);
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static HRESULT _SafeArrayUnaccessData(SAFEARRAY* psa);
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static HRESULT _SafeArrayUnlock(SAFEARRAY* psa);
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// Variant methods
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// ===============
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static HRESULT _WbemVariantChangeType(VARIANTARG* pvargDest, VARIANTARG* pvarSrc, VARTYPE vt);
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static HRESULT _VariantChangeType(VARIANTARG* pvargDest, VARIANTARG* pvarSrc, unsigned short wFlags, VARTYPE vt);
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static HRESULT _VariantChangeTypeEx(VARIANTARG* pvargDest, VARIANTARG* pvarSrc, LCID lcid, unsigned short wFlags, VARTYPE vt);
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static HRESULT _VariantClear(VARIANTARG* pvarg);
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static HRESULT _VariantCopy(VARIANTARG* pvargDest, VARIANTARG* pvargSrc);
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static HRESULT _VariantCopyInd(VARIANT* pvarDest, VARIANTARG* pvargSrc);
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static void _VariantInit(VARIANTARG* pvarg);
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// BSTR methods
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// ============
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static BSTR _SysAllocString(const OLECHAR* sz);
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static BSTR _SysAllocStringByteLen(LPCSTR psz, UINT len);
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static BSTR _SysAllocStringLen(const OLECHAR* pch, UINT cch);
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static void _SysFreeString(BSTR bstr);
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static HRESULT _SysReAllocString(BSTR* pbstr, const OLECHAR* sz);
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static HRESULT _SysReAllocStringLen(BSTR* pbstr, const OLECHAR* pch, UINT cch);
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static HRESULT _SysStringByteLen(BSTR bstr);
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static HRESULT _SysStringLen(BSTR bstr);
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// Conversion methods
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// ==================
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static HRESULT _VectorFromBstr (BSTR bstr, SAFEARRAY ** ppsa);
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static HRESULT _BstrFromVector (SAFEARRAY *psa, BSTR *pbstr);
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};
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#endif //_OLEWRAP_H_
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