添加项目文件。

DotNet.Revit.Hook/CommandTest.cs

@@ -0,0 +1,42 @@
+using Autodesk.Revit.UI;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.Attributes;
+
+namespace DotNet.Revit.Hook
+{
+    /// <summary>
+    /// 鼠标双击元素拦截事件.
+    /// </summary>
+    /// <seealso cref="Autodesk.Revit.UI.IExternalCommand" />
+    [Transaction(TransactionMode.Manual)]
+    public class MouseHookTest : IExternalCommand
+    {
+        Result IExternalCommand.Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
+        {
+            if (ElementMonitor.Instance == null)
+            {
+                ElementMonitor.Register(commandData.Application);
+            }
+
+            ElementMonitor.Instance.DoubleClickElement += OnRaiseDoubleClickElement;
+
+            return Result.Succeeded;
+        }
+
+        private int OnRaiseDoubleClickElement(object sender, DoubleClickElementEventArgs e)
+        {
+            if (e.Element == null)
+            {
+                return 0;
+            }
+
+            System.Windows.Forms.MessageBox.Show(string.Format("双击击元素Id： {0}", e.Element.Id));
+
+            return 1;
+        }
+    }
+}