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namespace-drivers.md

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uid: Terminal.Gui.Drivers

summary: The Drivers namespace provides cross-platform terminal abstraction and console driver implementations.

@Terminal.Gui.Drivers contains the platform abstraction layer that enables Terminal.Gui to run consistently across Windows, macOS, and Linux/Unix systems. This namespace includes console drivers, component factories, input/output processors, and platform-specific optimizations.

The driver system handles low-level terminal operations including cursor management, color support detection, input processing, screen buffer management, and terminal size monitoring. It provides a unified API through IConsoleDriver while accommodating the unique characteristics of different terminal environments.

Architecture Overview

Terminal.Gui v2 uses a modular driver architecture based on the Component Factory pattern:

  • IComponentFactory: Factory interface that creates driver-specific components
  • ConsoleDriverFacade: Unified facade implementing IConsoleDriver and IConsoleDriverFacade
  • IConsoleInput: Reads raw console input events on a separate thread
  • IConsoleOutput: Renders the output buffer to the terminal
  • IInputProcessor: Translates raw input into Terminal.Gui events (Key, MouseEventArgs)
  • IOutputBuffer: Manages the screen buffer and drawing operations
  • IWindowSizeMonitor: Detects and reports terminal size changes

    • Available Drivers

    Terminal.Gui provides three console driver implementations optimized for different platforms:

    • DotNetDriver (dotnet, NetComponentFactory) - Cross-platform driver using .NET System.Console API. Works on all platforms.
    • WindowsDriver (windows, WindowsComponentFactory) - Windows-optimized driver using Windows Console APIs for enhanced performance and features.
    • UnixDriver (unix, UnixComponentFactory) - Unix/Linux/macOS-optimized driver using platform-specific APIs.
    • FakeDriver (fake, FakeComponentFactory) - Mock driver for unit testing.

    The appropriate driver is automatically selected based on the platform. Windows defaults to WindowsDriver, while Unix-based systems default to UnixDriver.

    Example Usage

    // Driver selection is typically automatic
Application.Init();

// Access current driver
IConsoleDriver driver = Application.Driver;
bool supportsColors = driver.SupportsTrueColor;

// Explicitly specify a driver
Application.ForceDriver = "dotnet";
Application.Init();

// Or pass driver name to Init
Application.Init(driverName: "unix");

    Threading Model

    The driver architecture uses a multi-threaded design:

    • Input Thread: Asynchronously reads console input without blocking the UI
    • Main UI Thread: Processes events, performs layout, and renders output

    This separation ensures responsive input handling even during intensive UI operations.

    Deep Dive

    See the Cross-Platform Driver Model for comprehensive details.