Convert Autohotkey code to c# code

Question

my autohotkey code is

 /*

#NoEnv  ; Recommended for performance and compatibility with future AutoHotkey releases.
SendMode Input  ; Recommended for new scripts due to its superior speed and reliability.
SetWorkingDir %A_ScriptDir%  ; Ensures a consistent starting directory.
#NoTrayIcon

clipboard=%1%
Fileappend ,%clipboard%, D:\documents\autohotkey\test.txt 

 

*/ 

how I use this ------

I have added one option in windows explorer right click context menu "copy path"

whenever I right click on any file or folder and select "copy path" option it copies the path of this file to txt file

 

I want same code to be written in c#.....