Help Me!

Help needed for my new OS:

I want to:

• Read a specific line in configuration
• Button listener
• Write in a specific line in config
• Draggable window

I will write your name in About Window as: this os becomes possible because of yourname,myname

Hi there!

There are people who are willing to teach you.
But remember: We are NOT your coding monkeys.
What that means is that we wont code things for you, but we are willing to help you.

What do you mean with button listener?

Like your button listener..

What?
Like a thing that detects a keyboard press?

Oh, try using the wiki aswell;

computercraft.info/wiki

check this code just typed it together to give you a clue how you could do it

local function readline(fname,line)
local file = fs.open(fname, "r")  -- open the file
if file then  --check if file exists
  local fContent = file.readAll()  --read contents
  local fTable = textutils.unserialize(fContent) -- put content to a table (be careful this only works if the content was created by serializing a table 
  file.close() -- close file handle
  return fTable[line] -- return table entry that is equal to the line in the file
else -- if file does not exists
  return "file not Found" -- give errormessage
end
end


local function writetoline(fname,insertstring,line) -- with this you create the file line by line.
local file = fs.open(fname, "r") -- open file
if file then  -- check if exists 
  local fContent = file.readAll() -- if exists read content
  file.close() -- close file handle
   fTable = textutils.unserialize(fContent) -- read content of the file to table
   fTable[line] = insertstring -- insert new line or override existing line
else -- if file does not exists 
   fTable = {insertstring} --create a table with the text you want to add this will be added to line 1 of your file  
end
file = fs.open(fname, "w") --open file for saving
file.write(textutils.serialize(fTable)) -- convert table to a string that we can read with unserialize 
file.close() -- close filehandle
end

writetoline("test.txt","dies",1) -- write "dies" to line 1
writetoline("test.txt","ist",2) -- write "ist" to line 2 
writetoline("test.txt","ein",3)
writetoline("test.txt","beispiel",4)
writetoline("test.txt","Moep",5)
bla = readline("test.txt",5))  -- read line 5 
print(bla) -- print the variable 

hope that helps

greets Loki