ReadDirectoryChangesW()并未明确告知有关修改的信息 [英] ReadDirectoryChangesW() doesn't specifically tell info about modification

问题描述

我正在使用Win api ReadDirectoryChangesW()监视目录的应用程序.监视目录时，如果在受监视的目录中修改了文件/子目录，此api将发送FILE_ACTION_MODIFIED事件.它并不能说明自从在受监视目录中创建文件/子目录条目以来的时间，文件或子目录中发生了哪些具体更改，例如大小，时间戳或属性，或者我遗漏了什么.自创建文件条目以来，是否有任何方法可以获取已被修改的大小，时间戳/属性?

谢谢
Raj

Hi,

I''m working on an application which monitors a directory using win api ReadDirectoryChangesW() . When monitoring the directory, this api sends FILE_ACTION_MODIFIED event in case a file/sub-directory is modified in the monitored directory. It doesn''t tell what specifically has changed in the file or sub-directory since the time the file/ sub-directory entry was created in the monitored directory e.g size, timestamp or attributes or am I missing something. Is there any way to get what exactly has been modified viz size/timestamp/attirbutes since the time the file entry was created?

Thanks
Raj

推荐答案

如果您检查msdn，您将看到有更多可用信息.
http://msdn.microsoft.com/en-us/library/aa365465% 28VS.85％29.aspx [ ^ ]

该示例可以为您提供帮助:
CDirectoryChangeWatcher-ReadDirectoryChangesW全部包装 [

If you check msdn you will see that there is more information available.
http://msdn.microsoft.com/en-us/library/aa365465%28VS.85%29.aspx[^]

This example can help you out:
CDirectoryChangeWatcher - ReadDirectoryChangesW all wrapped up[^]

Good luck!

您可以研究MSDN库中的Fwatch示例

you can study Fwatch Sample from MSDN library

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