return function ()
local GuiService = game:GetService("GuiService")
local UserInputService = game:GetService("UserInputService")
local VRService = game:GetService("VRService")
local TextService = game:GetService("TextService")
local TextSettings = {
16,
"SourceSans",
Vector2.new(1000, 1000),
}
local invalidCharacterSize = TextService:GetTextSize("\u{FFFF}", table.unpack(TextSettings))
local function isValidCharacter(character)
local characterSize = TextService:GetTextSize(character, table.unpack(TextSettings))
return characterSize.Magnitude ~= invalidCharacterSize.Magnitude
end
local RobloxVersion = version()
local ButtonSelectImage = UserInputService:GetImageForKeyCode(Enum.KeyCode.ButtonSelect):lower()
local isDesktop = RobloxVersion:match("^0%.") ~= nil
local isConsole = GuiService:IsTenFootInterface() or RobloxVersion:match("^1%.") ~= nil
local isMobile = RobloxVersion:match("^2%.") ~= nil
local isVR = UserInputService.VREnabled and VRService.VREnabled
local isWindows = GuiService.IsWindows
local isApple = isValidCharacter("\u{F8FF}")
if isConsole then
local isPS4 = ButtonSelectImage:match("ps4")
local isPS5 = ButtonSelectImage:match("ps5")
local isXBox = ButtonSelectImage:match("xbox") or isWindows
if isPS4 then
return Enum.Platform.PS4
elseif isPS5 then
return Enum.Platform.PS5
elseif isXBox then
return Enum.Platform.XboxOne
end
elseif isMobile then
local isUWP = isWindows
if isUWP then
return Enum.Platform.UWP
else
local isIOS = isApple
local isAndroid = UserInputService.TouchEnabled
if isIOS then
return Enum.Platform.IOS
elseif isAndroid then
return Enum.Platform.Android
else
return Enum.Platform.Linux -- Sober (Linux)?
end
end
elseif isDesktop then
if isApple then
return Enum.Platform.OSX
elseif isWindows then -- Maybe check for Wine?
return Enum.Platform.Windows
end
elseif isVR then
if isMobile then
return Enum.Platform.MetaOS
end
end
return Enum.Platform.None
end
The original use case was novelty games like Flex Your Operating System, owned by shy (whose the author of the article linked above). Beyond that then ig OS detection can be useful for small but practical things like platform-specific UX adjustments, alternate control bindings, or disabling features that behave poorly on certain devices like androids. It’s not got a lot of use cases, but it’s a cool and handy thing in niche areas where platform really matters. You could also use it for profiling, such as tracking which OS plays your game the most or the least, and then tuning your experience, support, or marketing based on that data. It can also help highlight underperforming platforms, so you can improve compatibility or engagement/retention.
if UserInputService:GetImageForKeyCode(Enum.KeyCode.ButtonSelect) == "rbxasset://textures/ui/Controls/PlayStationController/PS4/ButtonTouchpad@2x.png" then
InputInfo = "PS4"
elseif UserInputService:GetImageForKeyCode(Enum.KeyCode.ButtonSelect) == "rbxasset://textures/ui/Controls/PlayStationController/PS5/ButtonShare@2x.png" then
InputInfo = "PS5"
elseif UserInputService:GetImageForKeyCode(Enum.KeyCode.ButtonSelect) == "rbxasset://textures/ui/Controls/XboxController/ButtonSelect@2x.png" then
InputInfo = "XBOX"
end
Sorry to break a bit, but I recommend putting some kind of disclaimer due to how many amounts of UI accessibility issues (e.g. large, obstructive touch buttons while playing on a tablet with mouse & keyboard) caused by incorrect use of workarounds such as OS estimation algorithms like this (which is very good and accurate, to be honest).
Just in case any of you is here to implement GUI-related workarounds, this is NOT the way you detect your GUI, as most operating systems that can run Roblox doesn’t 100% define what the type, size and capabilities of the device are.
For example, an Android or iOS device could be just a tablet that’s configured like if it’s a laptop. A Windows, macOS or Linux device could also be a tablet or a handheld that’s configured like if it’s a tablet or a smartphone.
I recommend to use better things that Roblox already provides like relative UDim2 values, UISizeConstraint, UserInputService.LastInputTypeChanged, and UserInputService:GetLastInputType() to make your UIs adapt to almost, if not all devices possible.
