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