Call base method in Form class.

Dashboard.Common/Events/KeyboardEvents.cs

@@ -34,7 +34,25 @@ namespace Dashboard.Events
 
     public enum ScanCode
     {
-        // TODO:
+        // TODO: this array is from ReFuel, see if this makes any sense.
+
+        Esc, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12,
+        Tilde, _1, _2, _3, _4, _5, _6, _7, _8, _9, _0, Minus, Equals, Backspace,
+        Tab, Q, W, E, R, T, Y, U, I, O, P, LBracket, RBracket, Backslash,
+        CapsLock, A, S, D, F, G, H, J, K, L, Semicolon, Quote, Enter,
+        LShift, Z, X, C, V, B, N, M, Dot, Comma, Slash, RShift,
+        LCtrl, LWin, LAlt, Space, RAlt, RWin, Menu, RCtrl,
+
+        PrtSc, ScrollLock, PauseBreak,
+        Insert, Delete, Home, End, PgUp, PgDown,
+        Up, Down, Left, Right,
+
+        NumLock, NumDiv, NumMul, NumSub, NumAdd, NumEnter, NumDecimal,
+        Num0, Num1, Num2, Num3, Num4, Num5, Num6, Num7, Num8, Num9,
+
+        IsoB00,
+
+        KeysMax,
     }
 
     public class KeyboardButtonEventArgs(KeyCode keyCode, ScanCode scanCode, ModifierKeys modifierKeys, bool up)

Dashboard.Common/Pal/DeviceContext.cs

@@ -1,10 +1,10 @@
+using System.Numerics;
 using Dashboard.Collections;
 using Dashboard.Windowing;
-using BindingFlags = System.Reflection.BindingFlags;
 
 namespace Dashboard.Pal
 {
-    public abstract class DeviceContext : IContextBase<DeviceContext, IDeviceContextExtension>
+    public abstract class DeviceContext : IContextBase<DeviceContext, IDeviceContextExtension>, IDeviceContext
     {
         private readonly TypeDictionary<IDeviceContextExtension> _extensions =
             new TypeDictionary<IDeviceContextExtension>(true);
@@ -19,6 +19,9 @@ namespace Dashboard.Pal
         public abstract string DriverName { get; }
         public abstract string DriverVendor { get; }
         public abstract Version DriverVersion { get; }
+        public abstract ISwapGroup SwapGroup { get; }
+        public abstract Vector2 FramebufferSize { get; }
+        public virtual bool DoubleBuffered { get; } = false;
 
         public bool IsDisposed { get; private set; }
 

Dashboard.OpenGL/GLDeviceContext.cs

@@ -1,5 +1,6 @@
 using System.Collections.Concurrent;
 using System.Collections.Immutable;
+using System.Numerics;
 using Dashboard.Drawing;
 using Dashboard.OpenGL.Drawing;
 using Dashboard.Pal;
@@ -27,6 +28,9 @@ namespace Dashboard.OpenGL
         public override string DriverName     => "Dashboard OpenGL Device Context";
         public override string DriverVendor   => "Dashboard";
         public override Version DriverVersion => new Version(0, 1, 0);
+        public override ISwapGroup SwapGroup { get; }
+        public override Vector2 FramebufferSize => GLContext.FramebufferSize;
+        public override bool DoubleBuffered { get; } = true;
 
         public Version GLVersion { get; }
         public string GLRenderer { get; }
@@ -39,9 +43,11 @@ namespace Dashboard.OpenGL
         private readonly ConcurrentQueue<Task> _beforeDrawActions = new ConcurrentQueue<Task>();
         private readonly ConcurrentQueue<Task> _afterDrawActions = new ConcurrentQueue<Task>();
 
-        public GLDeviceContext(Application app, IWindow? window, IGLContext context) : base(app, window)
+        public GLDeviceContext(Application app, IWindow? window, IGLContext context, ISwapGroup swap) : base(app, window)
         {
             GLContext = context;
+            SwapGroup = swap;
+
             context.MakeCurrent();
             GLLoader.LoadBindings(new GLContextBindingsContext(context));
 

Dashboard.OpenGL/IGLContext.cs

@@ -14,11 +14,6 @@ namespace Dashboard.OpenGL
         /// <remarks>-1 assigns no group.</remarks>
         public int ContextGroup { get; }
 
-        /// <summary>
-        /// The size of the framebuffer in pixels.
-        /// </summary>
-        public Vector2 FramebufferSize { get; }
-
         /// <summary>
         /// Called when the context is disposed.
         /// </summary>

Dashboard.OpenTK/PAL2/Pal2Application.cs

@@ -277,6 +277,46 @@ namespace Dashboard.OpenTK.PAL2
 
         private static ScanCode GetScanCode(Scancode scanCode) => scanCode switch
         {
+            // TODO: Revise this array.
+            Scancode.A => ScanCode.A,
+            Scancode.B => ScanCode.B,
+            Scancode.C => ScanCode.C,
+            Scancode.D => ScanCode.D,
+            Scancode.E => ScanCode.E,
+            Scancode.F => ScanCode.F,
+            Scancode.G => ScanCode.G,
+            Scancode.H => ScanCode.H,
+            Scancode.J => ScanCode.J,
+            Scancode.K => ScanCode.K,
+            Scancode.L => ScanCode.L,
+            Scancode.M => ScanCode.M,
+            Scancode.N => ScanCode.N,
+            Scancode.O => ScanCode.O,
+            Scancode.P => ScanCode.P,
+            Scancode.Q => ScanCode.Q,
+            Scancode.R => ScanCode.R,
+            Scancode.S => ScanCode.S,
+            Scancode.T => ScanCode.T,
+            Scancode.U => ScanCode.U,
+            Scancode.V => ScanCode.V,
+            Scancode.W => ScanCode.W,
+            Scancode.X => ScanCode.X,
+            Scancode.Y => ScanCode.Y,
+            Scancode.Z => ScanCode.Z,
+            Scancode.D0 => ScanCode._0,
+            Scancode.D1 => ScanCode._1,
+            Scancode.D2 => ScanCode._2,
+            Scancode.D3 => ScanCode._3,
+            Scancode.D4 => ScanCode._4,
+            Scancode.D5 => ScanCode._5,
+            Scancode.D6 => ScanCode._6,
+            Scancode.D7 => ScanCode._7,
+            Scancode.D8 => ScanCode._8,
+            Scancode.D9 => ScanCode._9,
+            Scancode.UpArrow => ScanCode.Up,
+            Scancode.DownArrow => ScanCode.Down,
+            Scancode.LeftArrow => ScanCode.Left,
+            Scancode.RightArrow => ScanCode.Right,
             _ => (ScanCode)0,
         };
     }

Dashboard.OpenTK/PAL2/PhysicalWindow.cs

@@ -64,7 +64,7 @@ namespace Dashboard.OpenTK.PAL2
         {
             Application = app;
             WindowHandle = window;
-            DeviceContext = new GLDeviceContext(app, this, new Pal2GLContext(window, context));
+            DeviceContext = new GLDeviceContext(app, this, new Pal2GLContext(window, context), new DummySwapGroup(context));
         }
 
         public PhysicalWindow(Application app, GraphicsApiHints hints)
@@ -81,7 +81,8 @@ namespace Dashboard.OpenTK.PAL2
             {
             case GraphicsApi.OpenGL:
             case GraphicsApi.OpenGLES:
-                return new GLDeviceContext(app, window, new Pal2GLContext(handle, TK.OpenGL.CreateFromWindow(handle)));
+                OpenGLContextHandle context = TK.OpenGL.CreateFromWindow(handle);
+                return new GLDeviceContext(app, window, new Pal2GLContext(handle, context), new DummySwapGroup(context));
             default:
                 throw new Exception($"Unknown graphics API {hints.Api}.");
             }
@@ -146,5 +147,28 @@ namespace Dashboard.OpenTK.PAL2
                 return Math.Max(x, y);
             }
         }
+
+        private class DummySwapGroup(OpenGLContextHandle context) : ISwapGroup
+        {
+            public int SwapInterval
+            {
+                get
+                {
+                    TK.OpenGL.SetCurrentContext(context);
+                    return TK.OpenGL.GetSwapInterval();
+                }
+
+                set
+                {
+                    TK.OpenGL.SetCurrentContext(context);
+                    TK.OpenGL.SetSwapInterval(value);
+                }
+            }
+
+            public void Swap()
+            {
+                TK.OpenGL.SwapBuffers(context);
+            }
+        }
     }
 }

Dashboard/Controls/Form.cs

@@ -66,6 +66,8 @@ namespace Dashboard.Controls
             foreach (Control child in this)
                 child.SendEvent(this, new PaintEventArgs(dc));
 
+            base.OnPaint(dc);
+
             dc.End();
         }