isGuestAccount

[fairyoggy]

--server
function checkguest (playerSource)
sourceAccount = getPlayerAccount ( playerSource )
if isGuestAccount ( sourceAccount ) then
CancelEvent()
end
end
addEvent("checkguest",true)
addEventHandler("checkguest",root,checkguest)

--client
function menuactivate ()
triggerServerEvent( "checkguest", getLocalPlayer())
DGS:dgsSetVisible(menuokno,true) 
end
end
addCommandHandler("menu",menuactivate)

If you enter a command /menu then window appear. So...

How to make a check on a guest? I mean the function will not work if player is guest.

[HassoN]

Try making the command on server side, check if player is not a guest then send a trigger to client side to open the menu.