GetFinalPathNameByHandle() 结果不带 '\\?\' [英] GetFinalPathNameByHandle() result without prepended '\\?\'

问题描述

这是我的代码片段:

char existingTarget[MAX_PATH]; 
HANDLE hFile = CreateFile(linkPath.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (INVALID_HANDLE_VALUE != hFile)
{
    GetFinalPathNameByHandle(hFile, existingTarget, MAX_PATH, FILE_NAME_OPENED);
    CloseHandle(hFile);
}

然而，existingTarget 会变成 \\?\C:\mydir\etc.我怎样才能让它只返回 C:\mydir\etc?

However, existingTarget is coming out to be \\?\C:\mydir\etc. How can I get it to return just C:\mydir\etc?

注意:我不想检查字符串 \\?\ 而只是 memmove 它，这有点太hackish此程序的解决方案.

Note: I don't want to check for the string \\?\ and just memmove it, it's a bit too hackish of a solution for this program.

推荐答案

我怎样才能让它只返回 C:\mydir\etc

how can I get it to return just C:\mydir\etc

你不能.VOLUME_NAME_DOS 和 VOLUME_NAME_GUID 总是 使用这种格式，并记录如下:

You cannot. VOLUME_NAME_DOS and VOLUME_NAME_GUID always use that format, and is documented as such:

此函数返回的字符串使用 \\?\ 语法.

The string that is returned by this function uses the \\?\ syntax.

查看示例结果rel="noreferrer">文档.

See the example results in the Community Additions section of the documentation.

注意:我不想检查字符串 \\?\ 并且只是记住它，它对于这个程序的解决方案有点太hackish了.

Note: I don't want to check for the string \\?\ and just memmove it, its a bit too hackish of a solution for this program.

这是最简单的解决方案.否则，您必须使用其他 API 将返回的路径转换为更易读的路径.例如将 VOLUME_NAME_NT 的结果与 QueryDosDevice()，或使用 VOLUME_NAME_GUID 的结果和 GetVolumePathNamesForVolumeName().

That is the easiest solution. Otherwise, you have to use other APIs to translate the returned path into a more human-readable path. Such as using the result of VOLUME_NAME_NT with QueryDosDevice(), or using the result of VOLUME_NAME_GUID with GetVolumePathNamesForVolumeName().

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