vxd中怎么取得短文件名

设有一个文件的全路径
如:strPath=\"C:\\\\test\\\\test.txt\"
在驱动(vxd)里怎么转换成短路经?

应用程序里可以用GetShortPathName,可在驱动里没找到

我用Vtoolsd开发的

Int 21/AX=7160h/CL=01h

Windows95 - LONG FILENAME - GET SHORT (8.3) FILENAME FOR FILE
AX = 7160h
CL = 01h
CH = SUBST expansion flag
00h return a path containing true path for a SUBSTed drive letter
80h return a path containing the SUBSTed drive letter
DS: SI -> ASCIZ long filename or path
ES: DI -> 67-byte buffer for short filename
Return: CF set on error
AX = error code
02h invalid component in directory path or drive letter only
03h malformed path or invalid drive letter
ES : DI buffer unchanged
CF clear if successful
ES : DI buffer filled with equivalent short filename (full path,
even if relative path given, and all uppercase)

Note: This call returns the short name for any long-filename portions of the provided pathname or filename

[编辑 -  1/27/03 by  else]

天啊~~汇编~
还是很感谢你
我懂得不多，不过可以试试。
分我会记得给你的
祝你过个好你年！
 :P