需要使用win32 api来复制c#中的文件 - 我该怎么做？

我正在尝试复制一些文件,偶尔名称的长度超过System.IO.File.Copy方法可以接受的长度(260个字符根据被抛出的异常)

根据我所做的研究,我应该能够将win32 api的文件方法与\？\ prepended to path一起使用以获得32,000个字符的限制,但我不确定我需要导入的方法.

有人可以帮我弄这个吗？我正在寻找类似的东西(显然是一个不同的功能,但你明白了):

[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
    static extern SafeFileHandle CreateFileW(string lpFileName, uint dwDesiredAccess,
                                          uint dwShareMode, IntPtr lpSecurityAttributes, uint dwCreationDisposition,
                                          uint dwFlagsAndAttributes, IntPtr hTemplateFile);

abatishchev.. 5

[DllImport("kernel32.dll",
           CharSet = CharSet.Unicode,
           CallingConvention = CallingConvention.StdCall,
           SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool CopyFile(
                   [MarshalAs(UnmanagedType.LPWStr)] string lpExistingFileName,
                   [MarshalAs(UnmanagedType.LPWStr)] string lpNewFileName,
                   [MarshalAs(UnmanagedType.Bool)] bool bFailIfExists);

http://www.pinvoke.net/default.aspx/kernel32/CopyFile.html

[DllImport("kernel32.dll",
           CharSet = CharSet.Unicode,
           CallingConvention = CallingConvention.StdCall,
           SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool CopyFile(
                   [MarshalAs(UnmanagedType.LPWStr)] string lpExistingFileName,
                   [MarshalAs(UnmanagedType.LPWStr)] string lpNewFileName,
                   [MarshalAs(UnmanagedType.Bool)] bool bFailIfExists);

http://www.pinvoke.net/default.aspx/kernel32/CopyFile.html