I got this:
function lazpuer()
occup = getPedOccupiedVehicle( localPlayer )
if occup then
local screenW, screenH = guiGetScreenSize()
ventana = guiCreateWindow((screenW - 430) / 2, (screenH - 286) / 2, 430, 286, "Control Vehicular", false)
guiWindowSetSizable(ventana, false)
huud1 = guiCreateScrollBar(104, 27, 316, 24, true, false, ventana)
doorleft = guiCreateScrollBar(104, 61, 316, 24, true, false, ventana)
doorright = guiCreateScrollBar(104, 95, 316, 24, true, false, ventana)
doorleft2 = guiCreateScrollBar(104, 129, 316, 24, true, false, ventana)
doorright2 = guiCreateScrollBar(104, 163, 316, 24, true, false, ventana)
trunks = guiCreateScrollBar(104, 197, 316, 24, true, false, ventana)
cerrars = guiCreateButton(9, 227, 411, 49, "Cerrar", false, ventana)
guiSetProperty(cerrars, "NormalTextColour", "FFAAAAAA")
huudtext = guiCreateLabel(11, 27, 93, 24, "Capo", false, ventana)
guiLabelSetHorizontalAlign(huudtext, "center", false)
doorlefttext = guiCreateLabel(11, 61, 93, 24, "Puerta 1", false, ventana)
guiLabelSetHorizontalAlign(doorlefttext, "center", false)
doorrighttext = guiCreateLabel(11, 95, 93, 24, "Puerta 2", false, ventana)
guiLabelSetHorizontalAlign(doorrighttext, "center", false)
doorleft2text = guiCreateLabel(11, 129, 93, 24, "Puerta 3", false, ventana)
guiLabelSetHorizontalAlign(doorleft2text, "center", false)
doorright2txt = guiCreateLabel(11, 163, 93, 24, "Puerta 4", false, ventana)
guiLabelSetHorizontalAlign(doorright2txt, "center", false)
trunkstext = guiCreateLabel(11, 197, 93, 24, "Maletero", false, ventana)
guiLabelSetHorizontalAlign(trunkstext, "center", false)
showCursor (true)
addEventHandler ("onClientGUIScroll", huud1, huudfunc, false)
addEventHandler ("onClientGUIScroll", doorleft, dlfunc, false)
addEventHandler ("onClientGUIScroll", doorright, drfunc, false)
addEventHandler ("onClientGUIScroll", doorleft2, dl2func, false)
addEventHandler ("onClientGUIScroll", doorright2, dr2func, false)
addEventHandler ("onClientGUIScroll", trunks, trunksfunc, false)
addEventHandler ("onClientGUIClick", cerrars, cerrarfunc, false)
else
exports.TopBarChat:sendClientMessage( "Tienes que estar en un auto para modificar las puertas!", 255, 30, 0 )
end
end
bindKey("l", "down", lazpuer)
function cerrarfunc()
showCursor( false )
guiSetVisible( ventana, not guiGetVisible( ventana ) )
end