if IsWindowClosed(t_RM) then OnStop() end 

if IsWindowClosed(t_RM) then OnStop() end

function OnInit()
...
CreateWindow(t_delta)
SetTableNotificationCallback ( t_delta, callback_delta )
end

function main()
is_run=true while is_run do sleep(500)
...
end
end

function callback_delta(t_delta, msg, par1, par2)
if msg == QTABLE_CLOSE then OnStop() end
if msg == QTABLE_LBUTTONDOWN then
par11,par22 = par1,2
Highlight(t_delta, par11,par22, RGB(0,0,255), RGB(255,255,255), 700 )
end
SetSelectedRow(t_delta, par11)
if msg == QTABLE_CHAR then
if par11==1 then n=1000 elseif par11==2 or par11==8 then n=0.1 else n=1 end
if par2==113 or par2==233 or par2==201 or par2==81 then
SetCell( t_delta, par11, par22, tostring( GetCell( t_delta, par11, par22).image+n ))
end
if par2==97 or par2==244 or par2==212 or par2==65 then
SetCell( t_delta, par11, par22, tostring( GetCell( t_delta, par11, par22).image-n ))
end
end
end