private static void doCreateDirectory(string directoryPath)
{
directoryPath = CheckAddLongPathPrefix(directoryPath);
if (!PInvokeHelper.CreateDirectory(directoryPath, IntPtr.Zero))
{
// http://msdn.microsoft.com/en-us/library/ms681382(VS.85).aspx.
var lastWin32Error = Marshal.GetLastWin32Error();
throw new Win32Exception(
lastWin32Error,
string.Format(
Resources.ErrorCreatingDirectory,
lastWin32Error,
directoryPath,
CheckAddDotEnd(new Win32Exception(lastWin32Error).Message)));
}
}