added Revit 2020 SDK files

2026-08-29 16:22:49 +00:00 · 2019-09-11 14:43:53 +02:00
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+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+//
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Autodesk.Revit.UI;
+
+namespace Revit.SDK.Samples.ExternalCommandRegistration.CS
+{
+   /// <summary>
+   /// Implements the Revit add-in interface IExternalCommandAvailability, 
+   /// determine when to enable\disable the corresponding external command by 
+   /// return value from IsCommandAvailable function.
+   /// Corresponding command will be disabled when a wall selected by user in this case.
+   /// </summary>
+   class WallSelection : IExternalCommandAvailability
+   {
+      #region IExternalCommandAvailability Members
+
+      public bool IsCommandAvailable(UIApplication applicationData, 
+         Autodesk.Revit.DB.CategorySet selectedCategories)
+      {
+         System.Collections.IEnumerator iterCategory = selectedCategories.GetEnumerator();
+         iterCategory.Reset();
+         while (iterCategory.MoveNext())
+         {
+            Autodesk.Revit.DB.Category category = (Autodesk.Revit.DB.Category)(iterCategory.Current);
+            if (category.Name == "Walls")
+            {
+               return false;
+            } 
+         }
+         return true;
+      }
+
+      #endregion
+   }
+
+   /// <summary>
+   /// Implements the Revit add-in interface IExternalCommandAvailability, 
+   /// determine when to enable\disable the corresponding external command by 
+   /// return value from IsCommandAvailable function.
+   /// Corresponding command will be disabled if active document is not a 3D view.
+   /// </summary>
+   class View3D : IExternalCommandAvailability
+   {
+      #region IExternalCommandAvailability Members
+
+      public bool IsCommandAvailable(UIApplication applicationData, 
+         Autodesk.Revit.DB.CategorySet selectedCategories)
+      {
+         Autodesk.Revit.DB.View activeView = applicationData.ActiveUIDocument.Document.ActiveView;
+         if (Autodesk.Revit.DB.ViewType.ThreeD == activeView.ViewType)
+         {
+            return true;
+         }
+         else 
+         {
+            return false;
+         }
+      }
+
+      #endregion
+   }
+}