请教ntwdblib.dll中的各个函数的作用及用法。(200分)

包括下列一些函数：
dbbind, dbcancel, dbclose, dbcmd, dbcollen, dbcolname, dbcoltype, dbcolinfo,
dbconvert, dbcurrow, dbdata, dbdataready, dbdatlen, dbdead, dberrhandle,
dbexit, dbfreebuf, dbfreelogin,
dbinit, dblocklib, dblogin, dbnextrow, dbmsghandle, dbnumcols, dbopen,
dbresults, dbsetlname,
dbsqlexec, dbsqlok, dbsqlsend, dbunlocklib, dbuse

dbbind, bind data to a recordset
dbcancel, cancel data edit
dbclose, close a connection
dbcmd, send a sql command
dbcollen, column length of a column
dbcolname, column name of a column
dbcoltype, type of a column
dbcolinfo,
dbconvert,
dbcurrow, current row of recordset
.....
just guses
guest and query from msdn ,
you can find the following function

dbdata, dbdataready, dbdatlen, dbdead, dberrhandle,
dbexit, dbfreebuf, dbfreelogin,
dbinit, dblocklib, dblogin, dbnextrow, dbmsghandle, dbnumcols, dbopen,
dbresults, dbsetlname,
dbsqlexec, dbsqlok, dbsqlsend, dbunlocklib, dbuse

the msdn has the detail explanation ,
try it your self
your can write a **ADO CONTROLS

我没装msdn，也没有msdn，哪里有的下载，听说有1个G，我的硬盘只有6个G，现在只剩不到
1个G的空间了。