diff --git a/Disp/RenderingCanvas.cs b/Disp/RenderingCanvas.cs
index 39bb2d4..dfa27ec 100644
--- a/Disp/RenderingCanvas.cs
+++ b/Disp/RenderingCanvas.cs
@@ -1,4 +1,4 @@
-using Hi.Disp;
+using Hi.Disp;
 using Hi.Native;
 using Hi.PanelModels;
 using System;
@@ -297,12 +297,52 @@ namespace Hi.WpfPlus.Disp
         #endregion
         
         #region Keyboard_Events
+        /// <summary>
+        /// Convert WPF Key to W3C KeyboardEvent.key string.
+        /// </summary>
+        static string WpfKeyToW3C(Key key) => key switch
+        {
+            Key.Home => "Home",
+            Key.End => "End",
+            Key.PageUp => "PageUp",
+            Key.PageDown => "PageDown",
+            Key.Left => "ArrowLeft",
+            Key.Right => "ArrowRight",
+            Key.Up => "ArrowUp",
+            Key.Down => "ArrowDown",
+            Key.LeftShift or Key.RightShift => "Shift",
+            Key.LeftCtrl or Key.RightCtrl => "Control",
+            Key.LeftAlt or Key.RightAlt => "Alt",
+            Key.Return => "Enter",
+            Key.Escape => "Escape",
+            Key.Back => "Backspace",
+            Key.Tab => "Tab",
+            Key.Delete => "Delete",
+            Key.Insert => "Insert",
+            Key.Space => " ",
+            Key.F1 => "F1",
+            Key.F2 => "F2",
+            Key.F3 => "F3",
+            Key.F4 => "F4",
+            Key.F5 => "F5",
+            Key.F6 => "F6",
+            Key.F7 => "F7",
+            Key.F8 => "F8",
+            Key.F9 => "F9",
+            Key.F10 => "F10",
+            Key.F11 => "F11",
+            Key.F12 => "F12",
+            >= Key.A and <= Key.Z => ((char)('a' + (key - Key.A))).ToString(),
+            >= Key.D0 and <= Key.D9 => ((char)('0' + (key - Key.D0))).ToString(),
+            _ => "Unidentified"
+        };
+
         /// <summary>
         /// Handles the key up event
         /// </summary>
         private void RenderingCanvas_KeyUp(object sender, KeyEventArgs e)
         {
-            DispEngine.KeyUp((long)e.Key);
+            DispEngine.KeyUp(WpfKeyToW3C(e.Key));
         }
         
         /// <summary>
@@ -310,27 +350,23 @@ namespace Hi.WpfPlus.Disp
         /// </summary>
         private void RenderingCanvas_KeyDown(object sender, KeyEventArgs e)
         {
-            DispEngine.KeyDown((long)e.Key);
+            string key = WpfKeyToW3C(e.Key);
+            DispEngine.KeyDown(key);
 
-            // Map specific keys for view transformation
-            long key = (long)e.Key;
-            if (key == (long)Key.RightShift)
-                key = (long)Key.LeftShift;
-                
             DispEngine.KeyDownTransform(key, new key_table__transform_view_by_key_pressing_t()
             {
-                HOME = (long)Key.Home,
-                PAGE_UP = (long)Key.PageUp,
-                PAGE_DOWN = (long)Key.PageDown,
-                F1 = (long)Key.F1,
-                F2 = (long)Key.F2,
-                F3 = (long)Key.F3,
-                F4 = (long)Key.F4,
-                SHIFT = (long)Key.LeftShift,
-                ARROW_LEFT = (long)Key.Left,
-                ARROW_RIGHT = (long)Key.Right,
-                ARROW_DOWN = (long)Key.Down,
-                ARROW_UP = (long)Key.Up
+                HOME = "Home",
+                PAGE_UP = "PageUp",
+                PAGE_DOWN = "PageDown",
+                F1 = "F1",
+                F2 = "F2",
+                F3 = "F3",
+                F4 = "F4",
+                SHIFT = "Shift",
+                ARROW_LEFT = "ArrowLeft",
+                ARROW_RIGHT = "ArrowRight",
+                ARROW_DOWN = "ArrowDown",
+                ARROW_UP = "ArrowUp"
             });
         }
         #endregion