Image.width | LuaRT free and open source Windows programming framework for Lua

Image.width readonly property

Get the Image width. The width starts from 0 (left side of the Image) and increases to the right direction.

Example


local ui = require "ui"
require "canvas"

-- create a simple Window
local win = ui.Window("Canvas.Image() sample", "fixed", 320, 200)

-- create a Canvas
local canvas = ui.Canvas(win)
canvas.align = "all"
local img = canvas:Image("LuaRT.png")
local xpos = -img.width

function canvas:onPaint()
  self:clear()
  img:draw(xpos, 30)
  xpos = xpos > canvas.width and -img.width or xpos+6
end

win:show()

-- update user interface
repeat
  ui.update()
until not win.visible