Widget:SetFontScale

This method sets the font scale to make text relatively larger or smaller. The font scale will adjust with DPI scaling so it only needs to be set once.

Syntax

• SetFontScale(number scale)

Example

-- Get the displays
local displays = GetDisplays()

-- Create a window
local window = CreateWindow("Ultra Engine", 0, 0, 800, 600, displays[1], WINDOW_RESIZABLE | WINDOW_CENTER | WINDOW_TITLEBAR)

-- Create User Interface
local ui = CreateInterface(window)
local sz = ui.background:ClientSize()

local label = CreateLabel("Font scale:", 10, 10, sz.x - 20, 30, ui.background)

local slider = CreateSlider(10, 40, sz.x - 20, 30, ui.background, SLIDER_TRACKBAR)
slider:SetLayout(1,1,1,0)
slider:SetRange(1, 40)
slider:SetValue(4)
EmitEvent(EVENT_WIDGETACTION, slider, 4)

local textarea = CreateTextArea(10, 75, sz.x - 20, sz.y - 85, ui.background, TEXTAREA_WORDWRAP)
textarea:SetLayout(1,1,1,1)
textarea:SetText("The quick brown fox jumps over the lazy dog.")

while true do
    local ev = WaitEvent()
    if ev.id == EVENT_WIDGETACTION then
        if ev.source == slider then
            textarea:SetFontScale(ev.data / 4.0)
        end
    elseif ev.id == EVENT_WINDOWCLOSE then
        return 0
    end
end