server.lua

local GUI = require("GUI")
local component = require("component")
local m = component.modem

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local workspace = GUI.workspace()
m.open(123)

workspace:addChild(GUI.panel(1, 1, workspace.width, workspace.height, 0x2D2D2D))

local horizontalList = workspace:addChild(GUI.list(34, 2, 100, 3, 2, 0, 0xE1E1E1, 0x4B4B4B, 0xE1E1E1, 0x4B4B4B, 0x696969, 0xFFFFFF, true))
horizontalList:setDirection(GUI.DIRECTION_HORIZONTAL)
horizontalList:setAlignment(GUI.ALIGNMENT_HORIZONTAL_CENTER, GUI.ALIGNMENT_VERTICAL_TOP)

local item64 = horizontalList:addItem("64 000 rf/t").onTouch = function()
  m.broadcast("64")
end

local item128 = horizontalList:addItem("128 000 rf/t").onTouch = function()
  m.broadcast("128")
end

local item192 = horizontalList:addItem("192 000 rf/t").onTouch = function()
  m.broadcast("192")
end

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workspace:draw()
workspace:start()