TestProgram.cs

using System;
using Microsoft.Win32;
using OpenTK;
using OpenTK.Input;

namespace TestProgram
{
	class Program
	{
		static void Main(string[] args)
		{
			ToolkitOptions options = new ToolkitOptions();
			options.Backend = PlatformBackend.PreferX11;
			Toolkit.Init(options);
			TestWindow window = new TestWindow();
			
			window.Run();
		}
	}


	class TestWindow : GameWindow
	{
		internal TestWindow() : base()
		{
			KeyUp += KeyUpEvent;
			KeyDown += KeyDownEvent;
			SystemEvents.SessionSwitch += (SessionSwitch);
		}

		protected override void OnUpdateFrame(FrameEventArgs e)
		{
			KeyboardState state = Keyboard.GetState();
		}

		internal void KeyDownEvent(object sender, KeyboardKeyEventArgs keyboardKeyEventArgs)
		{
			Console.WriteLine(keyboardKeyEventArgs.Key + " pressed");
		}

		internal void KeyUpEvent(object sender, KeyboardKeyEventArgs keyboardKeyEventArgs)
		{
			Console.WriteLine(keyboardKeyEventArgs.Key + " released");
		}

		private void SessionSwitch(object sender, SessionSwitchEventArgs e)
		{
			KeyboardState state = Keyboard.GetState();
			if (e.Reason == SessionSwitchReason.SessionLock)
			{
				if (state.IsAnyKeyDown)
				{
					Console.WriteLine("Locked, the following keys are down:");
					for (Key key = 0; key < Key.LastKey; key++)
					{
						if (state.IsKeyDown(key))
						{
							Console.WriteLine(key + " is down");
						}
					}
				}
			}
			if (e.Reason == SessionSwitchReason.SessionUnlock)
			{
				
				Console.WriteLine("Unlocked, the following keys are down:");
				for (Key key = 0; key < Key.LastKey; key++)
				{
					if (state.IsKeyDown(key))
					{
						Console.WriteLine(key + " is down");
					}
				}
			}
		}
	}
}