Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/mscorlib/system/consolecanceleventargs.cs

@@ -0,0 +1,49 @@
+// ==++==
+// 
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// 
+// ==--==
+/*=============================================================================
+**
+** Class: ConsoleCancelEventArgs
+**
+**
+** Purpose: This class provides support goop for hooking Control-C and 
+**          Control-Break, then preventing Control-C from interrupting the 
+**          process.
+**
+**
+=============================================================================*/
+namespace System {
+    using System;
+    using System.Diagnostics.Contracts;
+
+    public delegate void ConsoleCancelEventHandler(Object sender, ConsoleCancelEventArgs e);
+
+
+    [Serializable]
+    public sealed class ConsoleCancelEventArgs : EventArgs
+    {
+        private ConsoleSpecialKey _type;
+        private bool _cancel;  // Whether to cancel the CancelKeyPress event
+
+        internal ConsoleCancelEventArgs(ConsoleSpecialKey type)
+        {
+            _type = type;
+            _cancel = false;
+        }
+
+        // Whether to cancel the break event.  By setting this to true, the
+        // Control-C will not kill the process.
+        public bool Cancel {
+            get { return _cancel; }
+            set {
+                _cancel = value;
+            }
+        }
+
+        public ConsoleSpecialKey SpecialKey {
+            get { return _type; }
+        }
+    }
+}