/************************************************************************
** D A O G E T R W . H *
** *
** GetRows interface *
** *
** Warning: The interface defined in this file is for internal use by *
** the Microsoft Foundation Classes and the dbdao C++ classes. *
** Future releases of DAO may not be completely compatible with this *
** implementation. However, if you write to the MFC or dbdao *
** classes that use this interface, those classes will continue to *
** be compatible even if this underlying interface changes. *
** *
*************************************************************************
** Copyright (C) 1995 by Microsoft Corporation *
** All Rights Reserved *
************************************************************************/
#if !defined (_DAOGETRW_H_)
#define _DAOGETRW_H_
/*
Enumerations
*/
typedef enum
{
DAOCOLKIND_IND = 0,
DAOCOLKIND_STR,
DAOCOLKIND_WSTR
} DAOCOLKIND;
typedef enum
{
DAO_I2 = 0,
DAO_I4,
DAO_R4,
DAO_R8,
DAO_CURRENCY,
DAO_DATE,
DAO_BOOL,
DAO_BSTR,
DAO_LPSTR,
DAO_LPWSTR,
DAO_BLOB,
DAO_BYTES,
DAO_CHAR,
DAO_WCHAR,
DAO_ANYVARIANT,
DAO_BOOKMARK,
DAO_BYTE,
DAO_GUID,
DAO_DATATYPEMAX
} DAODATATYPE;
/*
Macros
*/
#define DAO_NOINDICATOR 0xffffffff
#define DAO_NULL 0xffffffff
#define DAO_CANTCOERCE 0xfffffffc
#define DAO_NOMAXLENGTH 0x00000000
#define DAOROWFETCH_CALLEEALLOCATES 0x00000001
#define DAOROWFETCH_DONTADVANCE 0x00000002
#define DAOROWFETCH_FORCEREFRESH 0x00000004
#define DAOROWFETCH_BINDABSOLUTE 0x00000008
#define DAOBINDING_DIRECT 0x00000001
#define DAOBINDING_VARIANT 0x00000002
#define DAOBINDING_CALLBACK 0x00000004
/*
Structures
*/
typedef struct
{
DWORD dwKind;
union
{
LONG ind;
LPCSTR lpstr;
LPCWSTR lpwstr;
};
} DAOCOLUMNID;
typedef DAOCOLUMNID *LPDAOCOLUMNID;
// Callback for binding
EXTERN_C typedef HRESULT (STDAPICALLTYPE *LPDAOBINDFUNC)(ULONG cb, DWORD dwUser, LPVOID *ppData);
#define DAOBINDINGFUNC(f) STDAPI f (ULONG cb, DWORD dwUser, LPVOID *ppData)
typedef struct
{
DAOCOLUMNID columnID;
ULONG cbDataOffset;
ULONG cbMaxLen;
ULONG cbInfoOffset;
DWORD dwBinding;
DWORD dwDataType;
DWORD dwUser;
} DAOCOLUMNBINDING;
typedef DAOCOLUMNBINDING *LPDAOCOLUMNBINDING;
typedef struct
{
ULONG cRowsRequested;
DWORD dwFlags;
LPVOID pData;
LPVOID pVarData;
ULONG cbVarData;
ULONG cRowsReturned;
} DAOFETCHROWS;
typedef DAOFETCHROWS *LPDAOFETCHROWS;
/*
New Errors
**NOTE: OLE standard ids to be determined.
*/
#define GETROWSUCCESS(x) MAKE_SCODE(SEVERITY_SUCCESS, FACILITY_ITF, x)
#define GETROWERR(x) MAKE_SCODE(SEVERITY_ERROR, FACILITY_ITF, x)
#define S_BUFFERTOOSMALL GETROWSUCCESS(0x1000)
#define S_ENDOFCURSOR GETROWSUCCESS(0x1001)
#define S_SILENTCANCEL GETROWSUCCESS(0x1002)
#define S_RECORDDELETED GETROWSUCCESS(0x1003)
#define E_ROWTOOSHORT GETROWERR(0x1000)
#define E_BADBINDINFO GETROWERR(0x1001)
#define E_COLUMNUNAVAILABLE GETROWERR(0x1002)
/*
Interfaces
*/
#undef INTERFACE
#define INTERFACE ICDAORecordset
DECLARE_INTERFACE_(ICDAORecordset, IDispatch)
{
STDMETHOD(GetRows) (THIS_ LONG cRowsToSkip, LONG cCol, LPDAOCOLUMNBINDING prgBndCol, ULONG cbRowLen, LPDAOFETCHROWS pFetchRows) PURE;
};
#endif // _DAOGETRW_H_
