> For the complete documentation index, see [llms.txt](https://fluentv2.hungquan99.site/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://fluentv2.hungquan99.site/getting-started/create-a-window.md).

# Create a window

```lua
local Window = Fluent:CreateWindow({
    Title = "My Script",
    SubTitle = "by You",
    Size = UDim2.fromOffset(580, 460),
    Icon = "settings",
    Acrylic = true,
    Theme = "Dark",
    MinimizeKey = Enum.KeyCode.LeftControl,
    TabWidth = 160,
    Search = true,
    DropdownsOutsideWindow = false,
})
```

Call `CreateWindow` once. A later call returns `nil`.

### Key options

`Title` identifies the interface. `SubTitle` adds secondary context beneath it.

* `Size` defines the initial window dimensions.
* `Icon` uses a Lucide icon name, such as `"settings"`.
* `Search` enables the window search control.
* `DropdownsOutsideWindow` lets dropdown menus extend beyond the window edge.

`Acrylic` has no effect in Studio. Use it in supported clients.

### Add your first tab

Create a tab from the window. Add a section to the returned tab.

```lua
local MainTab = Window:AddTab({ Title = "Main", Icon = "home" })
local General = MainTab:AddSection("General", "settings", false)
```

Pass `true` as the third `AddSection` argument to start collapsed. Add an `Idx` as the fourth argument to persist collapsed state.

```lua
local General = MainTab:AddSection("General", "settings", false, "GeneralSection")
```

| Method                                           | Description                  |
| ------------------------------------------------ | ---------------------------- |
| `Window:AddTab({ Title = "...", Icon = "..." })` | Creates and returns a tab.   |
| `Window:SelectTab(TabObject)`                    | Switches to a tab.           |
| `Window:Minimize()`                              | Toggles the minimized state. |
| `Window:ToggleSearch()`                          | Toggles the search bar.      |
| `Window:Destroy()`                               | Removes the interface.       |

Use `Window:SelectTab(MainTab)` to switch tabs from code. Use `Window:Dialog(...)` for a confirmation prompt.

Continue with [tabs, SubTabs, and sections](/build-the-interface/tabs-subtabs-and-sections.md).


---

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