如何确定映射驱动器的实际路径?

问题描述

如何确定映射驱动器的实际路径?

How do I determine a mapped drive's actual path?

因此，如果我在名为Z"的机器上有一个映射驱动器，我如何使用 .NET 确定映射文件夹的机器和路径?

So if I have a mapped drive on a machine called "Z" how can I using .NET determine the machine and path for the mapped folder?

代码可以假设它在带有映射驱动器的机器上运行.

The code can assume it's running on the machine with the mapped drive.

我查看了 Path、Directory、FileInfo 对象，但似乎找不到任何东西.

I looked at Path, Directory, FileInfo objects, but can't seem to find anything.

我还查找了现有问题，但找不到我要查找的内容.

I also looked for existing questions, but could not find what I'm looking for.

推荐答案

以下是一些代码示例:

• 使用 P/Invoke

所有的魔法都来自于一个 Windows 函数:

All of the magic derives from a Windows function:

    [DllImport("mpr.dll", CharSet = CharSet.Unicode, SetLastError = true)]
    public static extern int WNetGetConnection(
        [MarshalAs(UnmanagedType.LPTStr)] string localName,
        [MarshalAs(UnmanagedType.LPTStr)] StringBuilder remoteName,
        ref int length);

示例调用:

var sb = new StringBuilder(512);
var size = sb.Capacity;
var error = Mpr.WNetGetConnection("Z:", sb, ref size);
if (error != 0)
    throw new Win32Exception(error, "WNetGetConnection failed");
 var networkpath = sb.ToString();

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