169 lines
5.1 KiB
C++
169 lines
5.1 KiB
C++
#if (!defined(BUILD_FOR_NT40))
|
|
#pragma once
|
|
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
// @class CDBProperties | Maintenance of properties and their values.
|
|
//
|
|
//---------------------------------------------------------------------------
|
|
|
|
class CDBProperties : INHERIT_TRACKING
|
|
{
|
|
public:
|
|
//constructor
|
|
CDBProperties();
|
|
|
|
//destructor
|
|
~CDBProperties();
|
|
|
|
//Gets a property set given its GUID.
|
|
DBPROPSET* GetPropertySet(const GUID& guid) const;
|
|
|
|
//Gets a property set given its index into the array of property sets.
|
|
DBPROPSET* GetPropertySet(ULONG iPropSet) const
|
|
{ return ( GetPropertySet(_aPropSets[iPropSet].guidPropertySet) ); }
|
|
|
|
//Gets info about a property set given its GUID.
|
|
DBPROPINFOSET* GetPropertyInfoSet(const GUID& guid) const;
|
|
|
|
//Gest info about a property set given its index into the array
|
|
//of property set info structs.
|
|
DBPROPINFOSET* GetPropertyInfoSet(ULONG iPropInfoSet) const
|
|
{
|
|
return ( GetPropertyInfoSet(
|
|
_aPropInfoSets[iPropInfoSet].guidPropertySet) );
|
|
}
|
|
|
|
//Copies property set given its GUID to another property set.
|
|
HRESULT CopyPropertySet(const GUID& guid,
|
|
DBPROPSET* pPropSetDst) const;
|
|
|
|
//Copies a property set given its index (into the array of property sets)
|
|
//to another property set.
|
|
HRESULT CopyPropertySet(ULONG iPropSet,
|
|
DBPROPSET* pPropSetDst) const
|
|
{
|
|
return ( CopyPropertySet(
|
|
_aPropSets[iPropSet].guidPropertySet,
|
|
pPropSetDst) );
|
|
}
|
|
|
|
//Copies info of a property set to another, given the GUID.
|
|
HRESULT CopyPropertyInfoSet(
|
|
const GUID& guid,
|
|
DBPROPINFOSET* pPropInfoSetDst,
|
|
OLECHAR** ppDescBuffer,
|
|
ULONG_PTR *pcchDesc,
|
|
ULONG_PTR *pichCurrent) const;
|
|
|
|
//Copies info of a property set to another, given the index into the
|
|
//array of property set info structs.
|
|
HRESULT CopyPropertyInfoSet(
|
|
ULONG iPropInfoSet,
|
|
DBPROPINFOSET* pPropInfoSetDst,
|
|
OLECHAR** ppDescBuffer,
|
|
ULONG_PTR *pcchDesc,
|
|
ULONG_PTR *pichCurrent) const
|
|
{
|
|
RRETURN ( CopyPropertyInfoSet(
|
|
_aPropInfoSets[iPropInfoSet].guidPropertySet,
|
|
pPropInfoSetDst,
|
|
ppDescBuffer,
|
|
pcchDesc,
|
|
pichCurrent) );
|
|
}
|
|
|
|
//Gets a property given the set's GUID and the property id.
|
|
const DBPROP* GetProperty(const GUID& guid, DBPROPID id) const;
|
|
|
|
//Gets info about a property given the set's GUID and the property id.
|
|
const DBPROPINFO UNALIGNED* GetPropertyInfo(const GUID& guid, DBPROPID id) const;
|
|
|
|
//Sets a property given the GUID of the set and the property
|
|
//This flavor takes the description string directly.
|
|
HRESULT SetProperty(const GUID& guid,
|
|
const DBPROP& prop,
|
|
BOOL fAddNew,
|
|
PWSTR pwszDesc);
|
|
|
|
//Sets info of a property given the set's GUID and the info.
|
|
HRESULT SetPropertyInfo(const GUID& guid,
|
|
const DBPROPINFO& prop);
|
|
|
|
//Gets the number of property sets this object is currently managing.
|
|
ULONG GetNPropSets() const { return ( _cPropSets ); }
|
|
|
|
//Loads the description contained in a resource descriptor.
|
|
int LoadDescription(ULONG uID,
|
|
PWSTR lpBuffer,
|
|
ULONG cchBufferMax) const;
|
|
|
|
//Copies property descriptions to a buffer, given the
|
|
//set of property info structures.
|
|
HRESULT CopyPropertyDescriptions(
|
|
DBPROPINFOSET* pPropInfoSet,
|
|
WCHAR** ppBuf,
|
|
ULONG_PTR* pcchBuffer,
|
|
ULONG_PTR* pichCurrent) const;
|
|
|
|
//Validates the given property sets. A helper function
|
|
//used while setting property sets.
|
|
static HRESULT VerifySetPropertiesArgs(
|
|
ULONG cPropertySets,
|
|
DBPROPSET rgPropertySets[]);
|
|
|
|
//Checks and initializes property sets. A helper function
|
|
//used while getting property sets.
|
|
static HRESULT CheckAndInitPropArgs
|
|
(
|
|
ULONG cPropertySets,
|
|
const DBPROPIDSET rgPropertySets[],
|
|
ULONG *pcPropertySets,
|
|
void **prgPropertySets,
|
|
BOOL *pfPropInError,
|
|
BOOL *pfPropSpecial
|
|
);
|
|
|
|
private:
|
|
ULONG _cPropSets; // number of property sets
|
|
DBPROPSET* _aPropSets; // array of property sets
|
|
ULONG _cPropInfoSets; // number of property info sets
|
|
DBPROPINFOSET* _aPropInfoSets; // array of property info sets
|
|
|
|
NO_COPY(CDBProperties);
|
|
};
|
|
|
|
|
|
|
|
//--- D E F I N E S, M A C R O S A N D I N L I N E F U N C T I O N S ----
|
|
|
|
// Increment of property array allocation
|
|
const ULONG C_PROP_INCR = 12L;
|
|
const ULONG CCHAR_AVERAGE_PROP_STR_LENGTH = 40L;
|
|
const ULONG CCHAR_MAX_PROP_STR_LENGTH = 100L;
|
|
|
|
|
|
inline BOOL GoodPropOption
|
|
(
|
|
DBPROPOPTIONS dwOptions
|
|
)
|
|
{
|
|
return ( (dwOptions == DBPROPOPTIONS_REQUIRED ||
|
|
dwOptions == DBPROPOPTIONS_SETIFCHEAP) );
|
|
}
|
|
|
|
|
|
inline BOOL IsColIDNULL
|
|
(
|
|
DBID colid
|
|
)
|
|
{ return ( (colid.eKind == 0 && colid.uName.pwszName == NULL) ); }
|
|
|
|
|
|
BOOL VariantsEqual
|
|
(
|
|
VARIANT *pvar1,
|
|
VARIANT *pvar2
|
|
);
|
|
#endif
|