Spawn GUI

[bosslorenz]

What codes do I need to make a GUI appear when someone is just newly registered. But this GUI wont appear if its old account. Only for new accounts.

[Addlibs]

Show the GUI for any account unless it has a specific account-data, and after showing the GUI, set that specific account-data so that the GUI won't re-appear later

[LabiVila]

  
addEventHandler ("onPlayerLogin", getRootElement(), 
    function () 
        local acc = getPlayerAccount (source) 
        if acc and not isGuestAccount (acc) then 
            local everPlayed = getAccountData (acc, "everPlayedHere") 
            if (everPlayed == false) then 
                --showWindow 
                setAccountData (acc, "everPlayedHere", true) 
                outputChatBox ("Table showed cuz you never logged in here", source) 
            else 
                outputChatBox ("Table not showed cuz u've logged in here once", source) 
            end 
        end 
    end 
) 
  

The same stuff can be client-side (since you have GUIs, but it works like this)