Input - Fix keys stuck on Ctrl+Shift+Esc or Ctrl+Alt+Del - closes #509

src/Artemis.Core/Services/Input/InputService.cs

@@ -47,7 +47,7 @@ namespace Artemis.Core.Services
             inputProvider.MouseScrollDataReceived += InputProviderOnMouseScrollDataReceived;
             inputProvider.MouseMoveDataReceived += InputProviderOnMouseMoveDataReceived;
             _inputProviders.Add(inputProvider);
-            
+
             inputProvider.OnKeyboardToggleStatusRequested();
         }
 
@@ -296,6 +296,17 @@ namespace Artemis.Core.Services
             return modifiers;
         }
 
+        public void ReleaseAll()
+        {
+            foreach (var (device, keys) in _pressedKeys.ToList())
+            {
+                foreach (KeyboardKey keyboardKey in keys)
+                {
+                    InputProviderOnKeyboardDataReceived(this, new InputProviderKeyboardEventArgs(device, keyboardKey, false));
+                }
+            }
+        }
+
         #endregion
 
         #region Mouse

src/Artemis.Core/Services/Input/Interfaces/IInputService.cs

@@ -35,6 +35,11 @@ namespace Artemis.Core.Services
         /// </summary>
         void StopIdentify();
 
+        /// <summary>
+        ///     Flush all currently pressed buttons/keys
+        /// </summary>
+        void ReleaseAll();
+
         #region Events
 
         /// <summary>