在紧凑架构更改文件的创建时间 [英] Change file creation time on compact framework

问题描述

我需要设置文件的创建时间后，我下载使用套接字。在CF FileInfo.CreationTime是只读的。我试图用从<一名P / Invoke的解决方案href="http://stackoverflow.com/questions/5673921/change-file-lastwritedate-in-compact-framework">this话题，但它不会工作。我得到错误6（句柄无效）

I need to set file creation time after I download it using sockets. In CF FileInfo.CreationTime is readonly. I tried to use P/Invoke solution from this topic, but it won't work: I get error 6 (Invalid handle).

据为SetFileTime MSDN第一个参数（）必须是一个把手，而题目中提到的是字符串，有人说，它适用于他。我究竟做错了什么？如果我需要使用手柄，我怎么能得到这个手柄，CF，我应该怎么改SetFileTime（）的声明？

According to MSDN first parameter for SetFileTime() must be a handle, while in the topic mentioned it is string, and somebody says that it works for him. What am I doing wrong? If I need to use handle, how can I get this handle in CF and how should I change SetFileTime() declaration?

推荐答案

有趣。你点到答案显然是错误的，尽管它被接受。

Interesting. The answer you point to is obviously wrong, though it was accepted.

在任何情况下，你需要传递一个句柄（IntPtr的或者无论你想重新present它），其是通过调用CreateFile时返回 - 它的你还需要的P / Invoke 。

At any rate, you need to pass in a HANDLE (IntPtr or however you'd like to represent it) that is returned from a call to CreateFile - which you'll also need to P/Invoke.

[DllImport("coredll.dll")] 
private static extern bool SetFileTime(IntPtr fileHandle, 
                                  ref long creationTime, 
                                  ref long lastAccessTime, 
                                  ref long lastWriteTime); 

请务必打电话 CloseHandle的时，即可大功告成。

Be sure to call CloseHandle when you're done.

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