Canvas.fontweight readwrite property
Get or set the current Canvas font size, an integer value between 1 and 999. A smaller value indicates a lighter weight, a larger value indicates a heavier weight.
Example
local ui = require "ui"
require "canvas"
-- create a fixed Window
local win = ui.Window("Canvas:fontweight() sample", "fixed", 320, 200)
-- create a Canvas
local canvas = ui.Canvas(win)
-- align the Canvas in all of its parent area
canvas.font = "Times New Roman"
canvas.fontsize = 37.5
canvas.fontweight = 900
-- don't use onPaint() event, draw only once
canvas:print(canvas.font, 6, 70)
ui.run(win):wait()