BadArgument at @addeventhandler

[esporta05]

Here is the debug log screen shot

http://i.imgur.com/yBbuKJf.png

function Information (button) 
MainWindow = guiCreateWindow ( 0.2, 0.20, 0.55, 0.5, "Information", true ) --Main Window 
MainCloseButton = guiCreateButton(0.6747, 0.1599, 0.075, 0.04, "CLOSE", true) 
local TabPanel = guiCreateTabPanel ( 0, 0.1, 1, 1, true, MainWindow )  
local RuleTab = guiCreateTab( "Rules", TabPanel ) 
local CommandTab = guiCreateTab( "Commands", TabPanel )  
guiCreateMemo(15,10,1000,420,"Deatmatching is'nt allowed! \nbla bla bla!",false,RuleTab) --Main/Rules Window Text 
guiCreateMemo(15,10,1000,420,"This part was too long so I dont put this part to the forum.",false,CommandTab) --Commands Window Text 
end 
addCommandHandler ("info",Information) 
addEventHandler ( "onClientGUIClick", MainCloseButton, CloseButton, false ) --run closebuyon function 
function CloseButton (button)  
guiSetVisible(MainWindow, false)--close the mainwindow gui 
end 

[12p]

Just a matter of ordering your stuff. Creating your windows should be done only once; not attached to any function at all. When you need them (typing the command), you use that guiSetVisible function to make the window appear. And when you click the button, you make it disappear.

tl;dr this should work

btw, why isn't MainCloseButton attached to MainWindow?

local MainWindow = guiCreateWindow(0.2, 0.20, 0.55, 0.5, "Information", true) 
local MainCloseButton = guiCreateButton(0.6747, 0.1599, 0.075, 0.04, "CLOSE", true) 
local TabPanel = guiCreateTabPanel(0, 0.1, 1, 1, true, MainWindow)  
local RuleTab = guiCreateTab("Rules", TabPanel) 
local CommandTab = guiCreateTab("Commands", TabPanel)  
guiCreateMemo(15, 10, 1000, 420, "Deatmatching is'nt allowed! \nbla bla bla!", false, RuleTab) --Main/Rules Window Text 
guiCreateMemo(15, 10, 1000, 420, "This part was too long so I dont put this part to the forum.", false, CommandTab)  
guiSetVisible(MainWindow, false) 
  
  
function CloseButton ()  
   guiSetVisible(MainWindow, false) 
end 
addEventHandler("onClientGUIClick", MainCloseButton, CloseButton, false) 
  
function Information() 
   guiSetVisible(MainWindow, true) 
end 
addCommandHandler ("info", Information) 

[esporta05]

For your question:

I tried to attach button to the windows but it get dissepeated.

local MainCloseButton = guiCreateButton(0.6747, 0.1599, 0.075, 0.04, "CLOSE", true,MainWindow) 

I tried to attach it as same as I saw in the wiki but it get dissepeared all the time without any debug errors.

thank you for your help, if you can tell me whats wrong with the button I will really appreciate it.

[12p]

Ahhhh, dumb me. That's because you had the button outside the window

It's okay like that, but you must add a guiSetVisible for the button in each function (close and open)

[esporta05]

Even I dont set a guisetvisible for my button it is getting enabled in resource start.

and

I put my button inside of my windows but still I cant attach it to my window

[Max+]

--Client

local MainWindow = guiCreateWindow(0.2, 0.20, 0.55, 0.5, "Information", true) 
local MainCloseButton = guiCreateButton(0.6747, 0.1599, 0.075, 0.04, "CLOSE", true, MainWindow) 
local TabPanel = guiCreateTabPanel(0, 0.1, 1, 1, true, MainWindow) 
local RuleTab = guiCreateTab("Rules", TabPanel) 
local CommandTab = guiCreateTab("Commands", TabPanel) 
guiCreateMemo(15, 10, 1000, 420, "Deatmatching is'nt allowed! \nbla bla bla!", false, RuleTab) --Main/Rules Window Text 
guiCreateMemo(15, 10, 1000, 420, "This part was too long so I dont put this part to the forum.", false, CommandTab) 
guiSetVisible(MainWindow, false) 
  
addEventHandler ( 'onClientGUIClick', resourceRoot, 
function ( )  
if (  source == MainCloseButton ) then 
guiSetVisible(MainWindow, false) 
  end 
 end 
) 
  
addCommandHandler ('info', 
function ( ) 
   if ( guiGetVisible ( MainWindow  == true )) then 
   guiSetVisible(MainWindow, false) 
   showCursor ( false )  
   else 
   guiSetVisible(MainWindow, true) 
   showCursor ( true ) 
  end 
end 
)