Tree.y | LuaRT free and open source Windows programming framework for Lua

Tree.y read/write property

Get or set the Tree vertical position. The vertical position start from 0 (top side of the parent widget) and increase to the bottom side of the parent widget.

Example


local ui = require "ui"

-- create a simple window
local win = ui.Window("Tree.y sample", 600, 300)
local button = ui.Button(win, "Change Tree position", 240)
local tree = ui.Tree(win, {'Item 1', 'Item 2'}, 10, 140)

function button:onClick()
	tree.x  = math.random(10, win.width-tree.width)
	tree.y  = math.random(40, win.height-tree.height)
end

-- shows the window
win:show()

-- update user interface and increase Tree horizontal position
repeat
	ui.update()
until not win.visible