[OOP] Klassen - Event - System

function dxWindow:New (x,y,w,h,title,enable,relative)
	local self = setmetatable({},{__index = self})
	self.activ = true 
	if ( relative ) then
		self.x = x 
		self.y = y 
		self.w = w 
		self.h = h 
	else
		self.x = gx*(x/gpx) 
		self.y = gy*(y/gpy)
		self.w = gx*(w/gpx)
		self.h = gy*(h/gpy)
	end
	self.r = 0
	self.g = 0
	self.b = 0
	self.a = 100
	self.enable = enable
	self.title = title
	self.visible = true 
	self.render = function() self:onRender() end
	self.click = function( key, state ) self:onExit( key, state ) end
	addEventHandler("onClientRender",root,self.render)
	addEventHandler("onClientClick",root,self.click)
	addEvent("onDXWindowDestroy",true) -- Hier ist das Event
	return self
end

function dxWindow:onExit( key, state )
	if ( self.activ ) then
		if ( self.visible ) then
			if ( key == "left" and state == "down" ) then
				if ( getCursorArea(self.x+self.w-20,self.y,self.x+self.w,self.y+15) ) then
					triggerEvent("onDXWindowDestroy",root)
				end
			end
		end
	end
end

local window 
local win
function lift_window ( )
	if ( state == false ) then
		state = true
		window = dxWindow:New(557, 161, 242, 340,"Santos Depository Lift",true,false)	
		win = dxWindow:New(0, 0, 100, 100,"Santos Depository Lift",true,false) -- Hier werden sie gebildet	
		addEventHandler("onDXWindowDestroy",root,lift_window_destroy) -- Das sind die EventHandler
		addEventHandler("onDXWindowDestroy",root,lift_window_second)
	end
end


function lift_window_destroy ( ) 
	outputDebugString(tostring(source))
	source:destroy() -- "Zum test" 

	if ( state == true and source == window ) then -- Hier vergleiche ich sie mit source
		removeEventHandler("onClientRender",root,l_w_render)
		removeEventHandler("onDXWindowDestroy",root,lift_window_destroy)
		window:destroy()
		list:destroy()
		state = false
	end
end


function lift_window_second( ) --- Dazu da um es für zwei zu testen
	if ( source == win ) then	
		win:destroy()
	end
end