Compartilhar via

CDynamicAccessor::GetColumnInfo

  • Artigo

Returns the column metadata needed by most consumers.

HRESULT GetColumnInfo( 
   IRowset* pRowset, 
   DBORDINAL* pColumns, 
   DBCOLUMNINFO** ppColumnInfo, 
   OLECHAR** ppStringsBuffer  
) throw( );

Parameters

  • pRowset
    [in] A pointer to the IRowset interface.

  • pColumns
    [out] A pointer to memory in which to return the number of columns in the rowset; this number includes the bookmark column, if there is one.

  • ppColumnInfo
    [out] A pointer to memory in which to return an array of DBCOLUMNINFO structures. See "DBCOLUMNINFO Structures" in IColumnsInfo::GetColumnInfo in the OLE DB Programmer's Reference.

  • ppStringsBuffer
    [out] A pointer to memory in which to return a pointer to storage for all string values (names used either within columnid or for pwszName) within a single allocation block.

Return Value

One of the standard HRESULT values.

Remarks

See IColumnsInfo::GetColumnInfo in the OLE DB Programmer's Reference for information on the data types DBORDINAL, DBCOLUMNINFO, and OLECHAR.

Requirements

Header: atldbcli.h

See Also

Reference

CDynamicAccessor Class