FTXUI/doc/module.md

# Modules {#modules}

![title-img](https://nsm09.casimages.com/img/2025/05/30//2505300816063242518595251.jpg)

FTXUI is organized into three modules, each building upon the previous:

1. [ftxui/screen](#module-screen) - Low-level rendering
2. [ftxui/dom](#module-dom) - Layout and composition
3. [ftxui/component](#module-component) - User interaction

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# ftxui/screen

Defines:

- **`ftxui::Screen`**: a 2D grid of styled characters.
- **`ftxui::Pixel`**: the unit of rendering.
- Helpers like `ftxui::Color` and `Dimension`.

Use for direct terminal drawing and styling.

<div class="section_buttons">
 
|                                  Next |
|--------------------------------------:|
| [Documentation](module-screen.html) |
 
</div>


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# ftxui/dom

Provides:

- **`ftxui::Element`**: a tree structure for layout and UI.
- Composable and responsive elements.
- `Render()` to draw onto a `Screen`.

Ideal for structured, styled UIs.

<div class="section_buttons">

|                                  Next |
|--------------------------------------:|
| [Documentation](module-dom.html) |

</div>


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# ftxui/component

Adds:

- **`ftxui::Component`**: stateful, interactive widgets.
- Built-ins: `Checkbox`, `Input`, `Menu`, `Button`.
- Supports keyboard/cursor input and composition.

Use for interactive apps.

<div class="section_buttons">

|                                  Next |
|--------------------------------------:|
| [Documentation](module-component.html) |

</div>

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Modules can be used independently, or together: `screen → dom → component`.