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//-------------------------------------------------------------------- 
// Microsoft ADO 
// 
// (c) 1996-1998 Microsoft Corporation.  All Rights Reserved. 
// 
// 
// 
// ADO C/C++ Record Binding Definitions 
// 
//-------------------------------------------------------------------- 
 
#ifndef _ICRSINT_H_ 
#define _ICRSINT_H_ 
 
#include  
#include  
 
// forwards 
class CADORecordBinding; 
 
#define classoffset(base, derived) ((DWORD)(static_cast((derived*)8))-8) 
 
enum ADOFieldStatusEnum 
{	 
	adFldOK = 0, 
	adFldBadAccessor = 1, 
	adFldCantConvertValue = 2, 
	adFldNull = 3, 
	adFldTruncated = 4, 
	adFldSignMismatch = 5, 
	adFldDataOverFlow = 6, 
	adFldCantCreate = 7, 
	adFldUnavailable = 8, 
	adFldPermissionDenied = 9, 
	adFldIntegrityViolation = 10, 
	adFldSchemaViolation = 11, 
	adFldBadStatus = 12, 
	adFldDefault = 13 
}; 
 
typedef struct stADO_BINDING_ENTRY 
{ 
	ULONG			ulOrdinal; 
    WORD			wDataType; 
	BYTE			bPrecision; 
	BYTE			bScale; 
	ULONG			ulSize; 
	ULONG			ulBufferOffset; 
	ULONG			ulStatusOffset; 
	ULONG			ulLengthOffset; 
	ULONG			ulADORecordBindingOffSet; 
	BOOL			fModify; 
} ADO_BINDING_ENTRY; 
 
#define BEGIN_ADO_BINDING(cls) public: \ 
	typedef cls ADORowClass; \ 
	const ADO_BINDING_ENTRY* STDMETHODCALLTYPE GetADOBindingEntries() { \ 
	static const ADO_BINDING_ENTRY rgADOBindingEntries[] = {  
 
// 
// Fixed length non-numeric data 
// 
#define ADO_FIXED_LENGTH_ENTRY(Ordinal, DataType, Buffer, Status, Modify)\ 
	{Ordinal, \ 
	DataType, \ 
	0, \ 
	0, \ 
	0, \ 
	offsetof(ADORowClass, Buffer), \ 
	offsetof(ADORowClass, Status), \ 
	0, \ 
	classoffset(CADORecordBinding, ADORowClass), \ 
	Modify}, 
 
#define ADO_FIXED_LENGTH_ENTRY2(Ordinal, DataType, Buffer, Modify)\ 
	{Ordinal, \ 
	DataType, \ 
	0, \ 
	0, \ 
	0, \ 
	offsetof(ADORowClass, Buffer), \ 
	0, \ 
	0, \ 
	classoffset(CADORecordBinding, ADORowClass), \ 
	Modify}, 
 
// 
// Numeric data 
//  
#define ADO_NUMERIC_ENTRY(Ordinal, DataType, Buffer, Precision, Scale, Status, Modify)\ 
	{Ordinal, \ 
	DataType, \ 
	Precision, \ 
	Scale, \ 
	0, \ 
	offsetof(ADORowClass, Buffer), \ 
	offsetof(ADORowClass, Status), \ 
	0, \ 
	classoffset(CADORecordBinding, ADORowClass), \ 
	Modify}, 
 
#define ADO_NUMERIC_ENTRY2(Ordinal, DataType, Buffer, Precision, Scale, Modify)\ 
	{Ordinal, \ 
	DataType, \ 
	Precision, \ 
	Scale, \ 
	0, \ 
	offsetof(ADORowClass, Buffer), \ 
	0, \ 
	0, \ 
	classoffset(CADORecordBinding, ADORowClass), \ 
	Modify}, 
 
// 
// Variable length data 
// 
#define ADO_VARIABLE_LENGTH_ENTRY(Ordinal, DataType, Buffer, Size, Status, Length, Modify)\ 
	{Ordinal, \ 
	DataType, \ 
	0, \ 
	0, \ 
	Size, \ 
	offsetof(ADORowClass, Buffer), \ 
	offsetof(ADORowClass, Status), \ 
	offsetof(ADORowClass, Length), \ 
	classoffset(CADORecordBinding, ADORowClass), \ 
	Modify}, 
 
#define ADO_VARIABLE_LENGTH_ENTRY2(Ordinal, DataType, Buffer, Size, Status, Modify)\ 
	{Ordinal, \ 
	DataType, \ 
	0, \ 
	0, \ 
	Size, \ 
	offsetof(ADORowClass, Buffer), \ 
	offsetof(ADORowClass, Status), \ 
	0, \ 
	classoffset(CADORecordBinding, ADORowClass), \ 
	Modify}, 
 
#define ADO_VARIABLE_LENGTH_ENTRY3(Ordinal, DataType, Buffer, Size, Length, Modify)\ 
	{Ordinal, \ 
	DataType, \ 
	0, \ 
	0, \ 
	Size, \ 
	offsetof(ADORowClass, Buffer), \ 
	0, \ 
	offsetof(ADORowClass, Length), \ 
	classoffset(CADORecordBinding, ADORowClass), \ 
	Modify}, 
 
#define ADO_VARIABLE_LENGTH_ENTRY4(Ordinal, DataType, Buffer, Size, Modify)\ 
	{Ordinal, \ 
	DataType, \ 
	0, \ 
	0, \ 
	Size, \ 
	offsetof(ADORowClass, Buffer), \ 
	0, \ 
	0, \ 
	classoffset(CADORecordBinding, ADORowClass), \ 
	Modify}, 
 
#define END_ADO_BINDING()   {0, adEmpty, 0, 0, 0, 0, 0, 0, 0, FALSE}};\ 
	return rgADOBindingEntries;} 
 
// 
// Interface that the client 'record' class needs to support. The ADO Binding entries 
// provide the implementation for this interface. 
// 
class CADORecordBinding 
{ 
public: 
	STDMETHOD_(const ADO_BINDING_ENTRY*, GetADOBindingEntries) (VOID) PURE; 
}; 
 
// 
// Interface that allows a client to fetch a record of data into class data members. 
// 
struct __declspec(uuid("00000544-0000-0010-8000-00aa006d2ea4")) IADORecordBinding; 
DECLARE_INTERFACE_(IADORecordBinding, IUnknown) 
{ 
public: 
	STDMETHOD(BindToRecordset) (CADORecordBinding *pAdoRecordBinding) PURE; 
	STDMETHOD(AddNew) (CADORecordBinding *pAdoRecordBinding) PURE; 
	STDMETHOD(Update) (CADORecordBinding *pAdoRecordBinding) PURE; 
}; 
 
#endif // !_ICRSINT_H_