Combobox.enabled read/write property
Get or set the combobox ability to respond to mouse, and any other events. When set to false, disable the Combobox (the user will not be able to interact with it), and combobox's events won't be fired anymore.
Example
local ui = require "ui"
-- create a simple Window
local win = ui.Window("Combobox.enabled sample", 320, 200)
local combobox = ui.Combobox(win, {"I'm disabled :("}, 100, 80)
combobox.selected = combobox.items[1]
-- disable the combobox
combobox.enabled = false
win:show()
-- update user interface
repeat
ui.update()
until not win.visible