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384 lines
18 KiB
384 lines
18 KiB
// -----------------------------------------------------------------------------
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// I P R O P O B J . H - Steven J. Bailey - 8/17/96
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// -----------------------------------------------------------------------------
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#ifndef __IPROPOBJ_H
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#define __IPROPOBJ_H
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// ------------------------------------------------------------------------------------------
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// Depends On
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// ------------------------------------------------------------------------------------------
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#include "imnact.h"
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// ------------------------------------------------------------------------------------------
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// Forward Decls
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// ------------------------------------------------------------------------------------------
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class CPropCrypt;
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// ------------------------------------------------------------------------------------------
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// Macros for defining imn property tags
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// ------------------------------------------------------------------------------------------
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#define CCHMAX_PROPERTY_NAME 255
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// ------------------------------------------------------------------------------------------
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// Password structure
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// ------------------------------------------------------------------------------------------
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struct tagPROPPASS {
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LPBYTE pbRegData;
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BLOB blobPassword;
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};
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typedef struct tagPROPPASS PROPPASS;
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typedef PROPPASS *LPPROPPASS;
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// ------------------------------------------------------------------------------------------
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// Union of property value types
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// ------------------------------------------------------------------------------------------
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typedef union tagXVARIANT {
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DWORD Dword; // TYPE_DWORD
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LONG Long; // TYPE_LONG
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WORD Word; // TYPE_WORD
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SHORT Short; // TYPE_SHORT
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BYTE Byte; // TYPE_BYTE
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CHAR Char; // TYPE_CHAR
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FILETIME Filetime; // TYPE_FLETIME
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DWORD Flags; // TYPE_FLAGS
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LPSTR Lpstring; // TYPE_STRING
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LPWSTR Lpwstring; // TYPE_WSTRING;
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LPBYTE Lpbyte; // TYPE_BINARY
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LPSTREAM Lpstream; // TYPE_STREAM
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DWORD Bool; // TYPE_BOOL
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LPPROPPASS pPass; // TYPE_PASS
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ULARGE_INTEGER uhVal; // TYPE_ULARGEINTEGER
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} XVARIANT, *LPXVARIANT;
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typedef const XVARIANT *LPCXVARIANT;
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// ------------------------------------------------------------------------------------------
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// Min Max Data Type
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// ------------------------------------------------------------------------------------------
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typedef struct tagMINMAX {
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DWORD dwMin;
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DWORD dwMax;
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} MINMAX, *LPMINMAX;
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// ------------------------------------------------------------------------------------------
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// Value Flags
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// ------------------------------------------------------------------------------------------
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#define PV_WriteDirty FLAG01 // Has it been modified by a HrSetProperty
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#define PV_ValueSet FLAG02 // Is the value set or is it un-initialized
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#define PV_UsingDefault FLAG03 // Are we using the default value for HrGetProperty
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#define PV_CustomProperty FLAG04 // Is this a custom property (i.e. not in known propset range)
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#define PV_SetOnLoad FLAG05 // Value was set during a EnterLoadContainer
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// ------------------------------------------------------------------------------------------
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// PROPVALUE
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// ------------------------------------------------------------------------------------------
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typedef struct tagPROPVALUE {
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DWORD dwPropTag; // PropTag (id and type) of property
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DWORD dwPropFlags; // Property Flags, same as PROPINFO::dwFlags
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DWORD dwValueFlags; // Value Flags
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DWORD cbAllocated; // Number of bytes allocated for dynamic properties
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DWORD cbValue; // Length of property
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LPBYTE pbValue; // Pointer into Value union
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XVARIANT Variant; // Union of typed property values
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MINMAX rMinMax; // Valid range or size of property
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} PROPVALUE, *LPPROPVALUE;
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// ------------------------------------------------------------------------------------------
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// Property Flags
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// ------------------------------------------------------------------------------------------
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#define NOFLAGS 0
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#define PF_REQUIRED 1
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#define PF_NOPERSIST 2
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#define PF_READONLY 4
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#define PF_VARLENGTH 8
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#define PF_ENCRYPTED 16
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#define PF_MINMAX 32
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#define PF_DEFAULT 64
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// ------------------------------------------------------------------------------------------
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// Default for propinfo
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// ------------------------------------------------------------------------------------------
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typedef struct tagPROPDEFAULT {
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XVARIANT Variant; // Default Variant Type
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DWORD cbValue; // Size of default value
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} PROPDEFAULT, *LPPROPDEFAULT;
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// ------------------------------------------------------------------------------------------
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// Property Info - Used to create Property Set Arrays
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// ------------------------------------------------------------------------------------------
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typedef struct tagPROPINFO {
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DWORD dwPropTag; // Property tag
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LPTSTR pszName; // Property name
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DWORD dwFlags; // Propety flags (above)
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PROPDEFAULT Default; // Default Value for property
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MINMAX rMinMax; // Valid range or size of property
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} PROPINFO, *LPPROPINFO;
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typedef const PROPINFO *LPCPROPINFO;
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// -----------------------------------------------------------------------------
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// PSETINFO
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// -----------------------------------------------------------------------------
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typedef struct tagPSETINFO {
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LPPROPINFO prgPropInfo;
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ULONG cProperties;
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ULONG ulPropIdMin;
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ULONG ulPropIdMax;
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PROPINFO **rgpInfo;
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ULONG cpInfo;
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} PSETINFO, *LPPSETINFO;
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// -----------------------------------------------------------------------------
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// CPropertySet
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// -----------------------------------------------------------------------------
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class CPropertySet
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{
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private:
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ULONG m_cRef; // Reference Counting
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ULONG m_cProperties; // Number of properties in propset
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ULONG m_ulPropIdMin; // Lowest prop id
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ULONG m_ulPropIdMax; // Largest prop id
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BOOL m_fInit; // Has the object been initialized successfully
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LPPROPINFO m_prgPropInfo; // Property set inforation
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LPPROPVALUE m_prgPropValue; // Sorted propdata template array
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CRITICAL_SECTION m_cs; // Critical Section
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PROPINFO **m_rgpInfo;
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ULONG m_cpInfo;
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private:
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// -------------------------------------------------------------------------
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// Prepare this object to be re-used - may be public someday
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// -------------------------------------------------------------------------
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VOID ResetPropertySet(VOID);
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public:
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// -------------------------------------------------------------------------
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// Standard Object Stuff
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// -------------------------------------------------------------------------
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CPropertySet();
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~CPropertySet();
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ULONG AddRef(VOID);
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ULONG Release(VOID);
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// -------------------------------------------------------------------------
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// Use to validate property tags
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// -------------------------------------------------------------------------
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BOOL FIsValidPropTag(DWORD dwPropTag);
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// -------------------------------------------------------------------------
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// Computes index into propinfo or propdata arrays
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// -------------------------------------------------------------------------
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HRESULT HrIndexFromPropTag(DWORD dwPropTag, ULONG *pi);
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// -------------------------------------------------------------------------
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// Initialize the property set with a know propset array
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// -------------------------------------------------------------------------
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HRESULT HrInit(LPCPROPINFO prgPropInfo, ULONG cProperties);
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// -------------------------------------------------------------------------
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// Lookup property info on a specific prop
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// -------------------------------------------------------------------------
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HRESULT HrGetPropInfo(DWORD dwPropTag, LPPROPINFO pPropInfo);
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HRESULT HrGetPropInfo(LPTSTR pszName, LPPROPINFO pPropInfo);
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// -------------------------------------------------------------------------
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// Generates propdata array used by CPropertyContainer. This object
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// maintains a sorted template propdata array. These can be somewhat
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// expensive to create, that why a CPropertySet can live outside of a
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// CPropertyContainer.
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// -------------------------------------------------------------------------
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HRESULT HrGetPropValueArray(LPPROPVALUE *pprgPropValue, ULONG *pcProperties);
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};
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// -----------------------------------------------------------------------------
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// Forward Decl
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// -----------------------------------------------------------------------------
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class CEnumProps;
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// -----------------------------------------------------------------------------
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// CPropertyContainer
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// -----------------------------------------------------------------------------
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class CPropertyContainer : public IPropertyContainer
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{
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protected:
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ULONG m_cRef; // Reference Count
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CPropertySet *m_pPropertySet; // Base property set
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LPPROPVALUE m_prgPropValue; // Array of property data items
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ULONG m_cDirtyProps; // Number of current dirty properties
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ULONG m_cProperties; // Number of properties known to container
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BOOL m_fLoading; // Properties are being set from persisted source
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CPropCrypt *m_pPropCrypt; // Property Encryption Object
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CRITICAL_SECTION m_cs; // Critical Section
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private:
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friend CEnumProps;
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// -------------------------------------------------------------------------
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// Used to group dynamic properties TYPE_STRING, TYPE_WSTRING and TYPE_BYTE
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// -------------------------------------------------------------------------
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HRESULT HrGrowDynamicProperty(DWORD cbNewSize, DWORD *pcbAllocated, LPBYTE *ppbData, DWORD dwUnitSize);
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// -------------------------------------------------------------------------
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// Property validation used during the base HrSetProp
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// -------------------------------------------------------------------------
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HRESULT HrValidateSetProp(PROPTYPE PropType, LPPROPVALUE pPropValue, LPBYTE pb, ULONG cb, LPMINMAX pMinMax);
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HRESULT GetEncryptedProp(PROPVALUE *ppv, LPBYTE pb, ULONG *pcb);
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public:
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// -------------------------------------------------------------------------
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// Standard Object Stuff
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// -------------------------------------------------------------------------
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CPropertyContainer(void);
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virtual ~CPropertyContainer(void);
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// -------------------------------------------------------------------------
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// IUnknown Methods
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// -------------------------------------------------------------------------
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STDMETHODIMP QueryInterface(REFIID, LPVOID *);
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STDMETHODIMP_(ULONG) AddRef(void);
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STDMETHODIMP_(ULONG) Release(void);
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// -------------------------------------------------------------------------
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// Verify State of the object
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// -------------------------------------------------------------------------
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HRESULT HrInit(CPropertySet *pPropertySet);
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// -------------------------------------------------------------------------
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// LoadingContainer - When reading the props from a persisted location,
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// you should call this function with TRUE, and then with FALSE when your
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// completed. This tells the container that the props you are setting are
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// not dirty, and that they are initial properties.
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// -------------------------------------------------------------------------
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BOOL FIsBeingLoaded(VOID);
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VOID EnterLoadContainer(VOID);
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VOID LeaveLoadContainer(VOID);
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VOID SetOriginalPropsToDirty(VOID);
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// -------------------------------------------------------------------------
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// Are there dirty properties in the container
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// -------------------------------------------------------------------------
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BOOL FIsDirty(VOID);
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HRESULT HrIsPropDirty(DWORD dwPropTag, BOOL *pfDirty);
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HRESULT HrSetPropDirty(DWORD dwPropTag, BOOL fDirty);
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HRESULT HrSetAllPropsDirty(BOOL fDirty);
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// -------------------------------------------------------------------------
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// Blow away all changes
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// -------------------------------------------------------------------------
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VOID ResetContainer(VOID);
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// -------------------------------------------------------------------------
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// Property Enumeration
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// -------------------------------------------------------------------------
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HRESULT HrEnumProps(CEnumProps **ppEnumProps);
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// -------------------------------------------------------------------------
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// HrGetProperty
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// -------------------------------------------------------------------------
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STDMETHODIMP GetProp(DWORD dwPropTag, LPBYTE pb, ULONG *pcb);
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STDMETHODIMP GetPropDw(DWORD dwPropTag, DWORD *pdw);
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STDMETHODIMP GetPropSz(DWORD dwPropTag, LPSTR psz, ULONG cchMax);
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// -------------------------------------------------------------------------
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// HrSetProperty
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// -------------------------------------------------------------------------
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STDMETHODIMP SetProp(DWORD dwPropTag, LPBYTE pb, ULONG cb);
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STDMETHODIMP SetPropDw(DWORD dwPropTag, DWORD dw);
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STDMETHODIMP SetPropSz(DWORD dwPropTag, LPSTR psz);
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// -------------------------------------------------------------------------
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// Access to CPropertSet Stuff
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// -------------------------------------------------------------------------
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HRESULT HrGetPropInfo(DWORD dwPropTag, LPPROPINFO pPropInfo);
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HRESULT HrGetPropInfo(LPTSTR pszName, LPPROPINFO pPropInfo);
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// -------------------------------------------------------------------------
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// Encryption
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// -------------------------------------------------------------------------
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HRESULT HrEncryptProp(LPBYTE pbClientData, DWORD cbClientData, LPBYTE *ppbPropData, DWORD *pcbPropData);
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HRESULT HrDecryptProp(BLOB *pIn, BLOB *pOut);
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HRESULT PersistEncryptedProp(DWORD dwPropTag, BOOL *pfPasswChanged);
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};
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// -----------------------------------------------------------------------------
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// CEnumProps - In the future, when I support custom properties, this will
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// be very useful and will know how to enumerate known and
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// custom properties as if they were a single array.
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// -----------------------------------------------------------------------------
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class CEnumProps
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{
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private:
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ULONG m_cRef; // Reference Count
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LONG m_iProperty; // Current property index into m_pPropValue, -1 == first item is next
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CPropertyContainer *m_pPropertyContainer; // Container that were enumerating, were friends
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public:
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// -------------------------------------------------------------------------
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// Standard Object Stuff
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// -------------------------------------------------------------------------
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CEnumProps(CPropertyContainer *pPropertyContainer);
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~CEnumProps();
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ULONG AddRef(VOID);
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ULONG Release(VOID);
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// -------------------------------------------------------------------------
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// HrGetCount - Get the number of items that the enumerator will process
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// -------------------------------------------------------------------------
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HRESULT HrGetCount(ULONG *pcItems);
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// -------------------------------------------------------------------------
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// HrGetNext - Get the first or next enumerated propertiy
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// Returns hrEnumFinished when no more accounts to enumerate
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// -------------------------------------------------------------------------
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HRESULT HrGetNext(LPPROPVALUE pPropValue, LPPROPINFO pPropInfo);
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// -------------------------------------------------------------------------
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// HrGetCurrent - Get enumerated property that is the current one
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// Returns hrEnumFinished if no more accounts
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// -------------------------------------------------------------------------
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HRESULT HrGetCurrent(LPPROPVALUE pPropValue, LPPROPINFO pPropInfo);
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// -------------------------------------------------------------------------
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// Reset - This is like rewinding the enumerator
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// -------------------------------------------------------------------------
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VOID Reset(VOID);
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};
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// -----------------------------------------------------------------------------
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// IPersistPropertyContainer
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// -----------------------------------------------------------------------------
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class IPersistPropertyContainer : public CPropertyContainer
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{
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public:
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IPersistPropertyContainer(void);
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// HRESULT HrOpenTaggedPropStream(LPSTREAM pStream);
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// HRESULT HrSaveTaggedPropStream(LPSTREAM pStream);
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// HRESULT HrGetPersistedSize(DWORD *pcb);
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// virtual HRESULT HrOpenPropertyStream(DWORD dwPropTag, LPSTREAM *ppStream);
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virtual HRESULT HrSaveChanges(VOID) PURE;
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};
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// ------------------------------------------------------------------------------------------
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// Prototypes
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// ------------------------------------------------------------------------------------------
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HRESULT HrCreatePropertyContainer(CPropertySet *pPropertySet, CPropertyContainer **ppPropertyContainer);
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HRESULT PropUtil_HrRegTypeFromPropTag(DWORD dwPropTag, DWORD *pdwRegType);
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BOOL PropUtil_FRegCompatDataTypes(DWORD dwPropTag, DWORD dwRegType);
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HRESULT PropUtil_HrLoadContainerFromRegistry(HKEY hkeyReg, CPropertyContainer *pPropertyContainer);
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HRESULT PropUtil_HrPersistContainerToRegistry(HKEY hkeyReg, CPropertyContainer *pPropertyContainer, BOOL *fPasswChanged);
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#endif // __IPROPOBJ
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