# Window

This type represents a window control.

{% hint style="info" %}
This type inherits [`Control`](/api/instances/gui/control.md) type. All of its base methods and fields are also available in this type.
{% endhint %}

## Retrieve <a href="#call" id="call"></a>

This type doesn't have a constructor and there's only one window, which can be retrieved like this:

```lua
local wnd = gui.GetMainWindow()
```

If you wish to create new windows, look into [`LuaPopupControl`](/api/instances/gui/control/luapopupcontrol.md) instead.

***

## AddTab <a href="#get-value" id="get-value"></a>

[<kbd><mark style="background-color:purple;">**Method**<mark style="background-color:purple;"></kbd>](#user-content-fn-1)[^1]

Adds a new tab to the menu.

{% hint style="info" %}
Tabs usually have a layout that supports only three group columns. You may use a custom [`Layout`](/api/instances/gui/container/controlcontainer/layout.md) with tab layout mode `NONE` to bypass this restriction.
{% endhint %}

**Arguments**

| Name         | Type                                                                  | Description      |
| ------------ | --------------------------------------------------------------------- | ---------------- |
| `id`         | [`ControlID`](/api/instances/gui/types/controlid.md)`\|string`        | ID.              |
| `icon`       | [`Texture`](/api/instances/draw/managed/texture.md)                   | Tab icon.        |
| `title`      | `string`                                                              | Tab name.        |
| `layoutMode` | [`TabLayoutMode`](/api/instances/gui/control/window/tablayoutmode.md) | Tab layout mode. |

**Returns**

| Type                                                                                                                          | Description                                                             |
| ----------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------- |
| [`Container`](/api/instances/gui/container.md) \| [`TabsLayout`](/api/instances/gui/container/controlcontainer/tabslayout.md) | The new tab container, or subtab container if `layoutMode` is `SUBTABS` |

Example (subtabs)

```lua
local wnd = gui.GetMainWindow()
local tab = wnd:AddTab('my_tab', draw.textures['gui_icon_down'], 'My tab', gui.TabLayoutMode.SUBTABS)
local subtab = tab:AddTab('my_subtab', 'My subtab', gui.TabLayoutMode.DEFAULT, true)
local group = gui.Group('my_group', 'My group', 120, gui.GroupWidthMode.REDUCED)

subtab:Add(group)
```

Example (no subtabs)

```lua
local wnd = gui.GetMainWindow()
local tab = wnd:AddTab('my_tab', draw.textures['gui_icon_down'], 'My tab', gui.TabLayoutMode.DEFAULT)
local group = gui.Group('my_group', 'My group', 120, gui.GroupWidthMode.FULL)

tab:Add(group)
```

[^1]: This field is a method and must be invoked using a colon (:)


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