The most simple Buttons API Test

os.unloadAPI("buttons")
os.loadAPI("buttons")

local running = true
local guiButtons = {}

close = function() running = false end
hideme = function()
    buttons.show(guiButtons.buttonSelfHiding, false)
    buttons.enable(guiButtons.buttonClose, false)
end
makeitgreen = function()
    buttons.setColor(guiButtons.buttonRed, colors.white, colors.lime)
    buttons.setText(guiButtons.buttonRed, "Ahem - Problem?")
    buttons.show(guiButtons.buttonSelfHiding, true)
    buttons.enable(guiButtons.buttonClose, true)
end
gofunky = function()
    buttons.setPosition(guiButtons.buttonFunky, 3 + math.random(0, 20), 9 + math.random(0, 5), 11, 1)
end

guiButtons.buttonClose = buttons.register(3, 3, 7, 1, colors.white, colors.lightGray, "Close", close)
guiButtons.buttonSelfHiding = buttons.register(11, 3, 10, 1, colors.white, colors.lightGray, "Hide me!", hideme)
guiButtons.buttonRed = buttons.register(3, 5, 23, 3, colors.white, colors.red, "WTF? A red button?!", makeitgreen)
guiButtons.buttonFunky = buttons.register(3, 9, 11, 1, colors.white, colors.yellow, "Go funky!", gofunky)

buttons.draw()
while running do
    local eventArray = {os.pullEvent()}
    buttons.event(eventArray)
    buttons.draw()
end

os.unloadAPI("buttons")