如何检查文件正在被使用

from

http://www.eggheadcafe.com/software/aspnet/31943038/check-file-opened-or-not.aspx

check file opened or not?

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How about using OpenFile() with OF_SHARE_EXCLUSIVE? I think it is better

since using CreateFile, if successful, I have to delete the file, and my

purpose is only to check whether some file is opened (used) or not.


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Hi Victor,



How about using OpenFile() with OF_SHARE_EXCLUSIVE? If successful, I need to

close the file.



regards,



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Hi George,


Please *read the complete* documentation: you can call CreateFile in a way

that it will only open a file if it already exists, so that no file is

created.


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Thanks SvenC,



For CreateFile, it only has option OPEN_EXISTING to check whether a file is

existing or not, but no exclusive mode checking to see whether the existing

file is used (opened) by any other thread/process.


http://msdn2.microsoft.com/en-us/library/aa914735.aspx


Any comments?


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Hi George,


Pass 0 to dwShareMode and you disallow sharing.


--

SvenC


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