UTILPROP.H

//-------------------------------------------------------------------- 
// Microsoft OLE DB Sample Provider  
// (C) Copyright 1994 - 1996 Microsoft Corporation.  All Rights Reserved. 
// 
// @doc 
// 
// @module UTILPROP.H | CUtilProp object definitions 
// 
// 
#ifndef _UTILPROP_H_ 
#define _UTILPROP_H_ 
 
 
//-----------  structs and #defines ------------------------------------------- 
 
// @struct PROPSTRUCT  | simple table used to store property information. Used in  
// our read-only implementation of IDBProperties::GetPropertyInfo and IRowsetInfo::GetProperties 
typedef struct _tagPROPSTRUCT 
    { 
    DBPROPIDdwPropertyID; 
DBPROPFLAGS dwFlags; 
    VARTYPE     vtType; 
    BOOL        boolVal; 
    SLONG       longVal; 
    PWSTR       pwstrVal; 
    PWSTRpwstrDescBuffer; 
    } PROPSTRUCT; 
    
// flags for IDBProperties::GetPropertyInfo 
#define FLAGS_ROWSETRO(DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ) 
#define FLAGS_ROWSETRW(DBPROPFLAGS_ROWSET | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) 
#define FLAGS_DATASOURCE    (DBPROPFLAGS_DATASOURCEINFO | DBPROPFLAGS_READ) 
#define FLAGS_DBINITRW(DBPROPFLAGS_DBINIT | DBPROPFLAGS_READ | DBPROPFLAGS_WRITE) 
 
 
// Classes ------------------------------------------------------------------- 
 
//---------------------------------------------------------------------------- 
// @class CUtilProp | Containing class for all interfaces on the UtilProp  
// Object 
// 
class CUtilProp 
{ 
protected: //@access protected 
        //@cmember Gets index of entry for a given property in global property table 
        BOOL GetPropIndex 
        ( 
       DBPROPIDdwPropertyID, 
 ULONG*pulIndex 
        ); 
 
        //@cmember Loads fields of DBPROPINFO struct. Helper for GetPropertyInfo             
        BOOL LoadDBPROPINFO 
            ( 
PROPSTRUCT*pPropStruct, 
DBPROPINFO*pPropInfo 
            ); 
 
        //@cmember Loads fields of DBPROP struct. Helper for GetProperties 
        BOOL LoadDBPROP 
            ( 
PROPSTRUCT*pPropStruct, 
DBPROP*pPropSupport 
            ); 
 
public: //@access public 
//@cmember Constructor  
 CUtilProp(void); 
//@cmember Destructor 
~CUtilProp(void); 
 
STDMETHODIMP GetProperties 
    ( 
    ULONGcPropertySets, 
    const DBPROPIDSETrgPropertySets[], 
    ULONG*              pcProperties, 
    DBPROPSET**prgProperties 
    ); 
 
STDMETHODIMP GetPropertyInfo 
    ( 
    ULONGcPropertySets, 
    const DBPROPIDSETrgPropertySets[], 
ULONG*pcPropertyInfoSets, 
DBPROPINFOSET**prgPropertyInfoSets, 
WCHAR**ppDescBuffer 
    ); 
 
STDMETHODIMP CUtilProp::SetProperties 
( 
ULONGcProperties, 
DBPROPSETrgProperties[] 
); 
 
}; 
 
typedef CUtilProp *PCUTILPROP; 
 
#endif