>I need to call ODBC API's function SQLAllocHandle,but there is an question: the parameter HandleType's value should be one of the ODBC's Constants: SQL_HANDLE_ENV,SQL_HANDLE_DBC,SQL_HANDLE_STMT.
>
>I find ODBC's contants table in serveral position, even include msdn's ODBC program referance, but found nothing.Anybody can help?

#define SQL_HANDLE_ENV             1
#define SQL_HANDLE_DBC             2
#define SQL_HANDLE_STMT            3
#define SQL_HANDLE_DESC            4