LLHookLib

Simple & efficient Windows low level keyboard & mouse hook library

Hooks are created on a dedicated thread, so this library will work on console apps & UI apps.

Usage

Creating a mouse hook

IDisposable mouseHook = LLHook.CreateMouseHook((MouseHookEvent @event) =>
{
    Console.WriteLine($"Got mouse event {@event.Type}");

    if(@event.Type == Mouse.MouseEventType.Moved)
        Console.WriteLine($"Mouse moved to {@event.MoveEvent.X}:{@event.MoveEvent.Y}" +
            $" (Relative {@event.MoveEvent.RelativeX}:{@event.MoveEvent.RelativeY}");

    if (@event.Type == Mouse.MouseEventType.Button)
        Console.WriteLine($"Mouse button {@event.ButtonEvent.Button} state {@event.ButtonEvent.ButtonState}");

    if (@event.Type != Mouse.MouseEventType.Scroll)
        Console.WriteLine($"Mouse scrolled {@event.ScrollEvent.Direction}");

    return HookCallbackResult.CallNextHook;
});

Creating a Keyboard hook

IDisposable keyboardHook = LLHook.CreateKeyboardHook((KeyboardHookEvent @event) =>
{
    Console.WriteLine($"Key {@event.VKey} {@event.KeyState}");

    return HookCallbackResult.CallNextHook;
});

Notes

• Returning HookCallbackResult.Block will prevent windows from processing the event.