Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System/compmod/system/componentmodel/design/IRootDesigner.cs

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+//------------------------------------------------------------------------------
+// <copyright file="IRootDesigner.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+/*
+ */
+namespace System.ComponentModel.Design {
+    using System.Diagnostics;
+    using System;
+    using System.ComponentModel;
+    using Microsoft.Win32;
+
+    /// <devdoc>
+    ///     Defines the root designer.  A root designer is the designer that sits
+    ///     at the top, or root, of the object hierarchy.  The root designer's job
+    ///     is to provide the design-time user interface for the design surface.
+    ///     It does this through the View property.
+    /// </devdoc>
+    [System.Runtime.InteropServices.ComVisible(true)]
+    public interface IRootDesigner : IDesigner {
+    
+        /// <devdoc>
+        ///     The list of technologies that this designer can support
+        ///     for its view.  Examples of different technologies are
+        ///     Windows Forms and Web Forms.  Other object models can be
+        ///     supported at design time, but they most be able to
+        ///     provide a view in one of the supported technologies.
+        /// </devdoc>
+        ViewTechnology[] SupportedTechnologies { get; }
+
+        /// <devdoc>
+        ///     The user interface to present to the user.  The returning
+        ///     data type is an object because there can be a variety
+        ///     of different user interface technologies.  Development
+        ///     environments typically support more than one technology.
+        /// </devdoc>
+        object GetView(ViewTechnology technology);
+    }
+}
+