pinvoke.net: Edit: kernel32.GetCurrentDirectory

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Summary: The GetCurrentDirectory API

!!!!C# Signature:
 [DllImport("kernel32.dll")]
 static extern uint GetCurrentDirectory(uint nBufferLength,
   [Out] StringBuilder lpBuffer);
!!!!User-Defined Types:
None.

!!!!Notes:
None.

!!!!Tips & Tricks:
Please add some!

!!!!Sample Code:
/***************************************************
*                                                  *
*        I M P O R T A N T   N O T E               *
*                                                  *
* This sample uses: GetCurrentDirectoryW           *
*                                                  *
***************************************************/

//Declaration
public const uint MAX_DEEP_PATH = 32767;

[DllImport("kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
static extern uint GetCurrentDirectoryW(uint nBufferLength,  StringBuilder lpBuffer);

//Usage
StringBuilder nameBuffer = new StringBuilder((int)MAX_DEEP_PATH + 3);
    //I need 3 extra '\x0' chartacters at the end of the buffer
    //You need to be able to hold up to 32767 chars if you plan to recurse deep folder structures
    //when you use FindFirstFileW, FindNextFileW and DeleteFileW

uint folderNameLength = GetCurrentDirectory(MAX_DEEP_PATH, nameBuffer);
if (folderNameLength == 0)
{
   int lastError = Marshal.GetLastWin32Error();
   Console.WriteLine("Failed to get initial working directory; error = '{0}'", lastError);
   return;
}
if (folderNameLength > MAX_DEEP_PATH)
{
   Console.WriteLine("Failed to get initial working directory; allocated buffer is shorter than required: '{0}'<'{1}'", MAX_DEEP_PATH, folderNameLength);
   return;
}

!!!!Alternative Managed API:
Directory.GetCurrentDirectory

Documentation: GetCurrentDirectory@msdn on MSDN