1 files changed, 51 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Runtime/InteropServices/WindowsRuntime/ICustomProperty.cs b/src/mscorlib/src/System/Runtime/InteropServices/WindowsRuntime/ICustomProperty.cs
new file mode 100644
index 0000000000..aa7ea5fdb2
--- /dev/null
+++ b/src/mscorlib/src/System/Runtime/InteropServices/WindowsRuntime/ICustomProperty.cs
@@ -0,0 +1,51 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+//
+
+using System;
+using System.Diagnostics.Contracts;
+
+namespace System.Runtime.InteropServices.WindowsRuntime
+{
+    [ComImport]
+    [Guid("30DA92C0-23E8-42A0-AE7C-734A0E5D2782")]
+    [WindowsRuntimeImport]
+    internal interface ICustomProperty
+    {
+        Type Type
+        {
+            [Pure]
+            get;
+        }
+        
+        string Name 
+        { 
+            [Pure]
+            get; 
+        }
+
+        [Pure]
+        object GetValue(object target);
+
+        void SetValue(object target, object value);
+        
+        [Pure]
+        object GetValue(object target, object indexValue);
+        
+        void SetValue(object target, object value, object indexValue);
+        
+        bool CanWrite 
+        { 
+            [Pure]
+            get; 
+        }
+
+        bool CanRead  
+        { 
+            [Pure]
+            get; 
+        }               
+    }
+}
+