请教如何使自定义的选择事件在所有文档中有效

cheng5276

编译后的DLL通过注册表加入了CAD自启动
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Autodesk\AutoCAD\R18.0\ACAD-8001:804\Applications\工具包]
"LOADER"="C:\工具包\LAND.dll"
"MANAGED"=dword:0001c101
"LOADCTRLS"=dword:0001c102   


启动CAD时自动初始化
public void Initialize()
  {
                    Document acDoc = Application.DocumentManager.MdiActiveDocument;
                    acDoc.ImpliedSelectionChanged += new EventHandler(doc_ImpliedSelectionChanged); //设定自定义选择事件
}

问题出在这个初始化只在CAD启动时执行一次，后续开图，都未执行，所以当新开图后，这个选择事件也就失效了，
请教如何能让这个 选择事件对所有及后续新建的Document都有效？
恭请各位老大们指点

cheng5276

恭请老大现身.......

sieben

    public void Initialize()
    {
        aApp.DocumentManager.DocumentCreated += new DocumentCollectionEventHandler(DocumentManager_DocumentCreated);
          aApp.DocumentManager.DocumentActivated += new DocumentCollectionEventHandler(DocumentManager_DocumentActivated);
    }

sieben

using aApp = Autodesk.AutoCAD.ApplicationServices.Application;

cheng5276

谢谢老大，不过好像不管用，鉴于我对老大的指点出现了2种理解，均未成功，恭请继续指点.....


理解一：（依然只是在新建文件时只执行了一次）
using Autodesk.AutoCAD.Runtime;
using System;
using Application = Autodesk.AutoCAD.ApplicationServices.Application;
using Document = Autodesk.AutoCAD.ApplicationServices.Document;

namespace ClassLibrary1
{
    public class Main : IExtensionApplication
    {
        Autodesk.AutoCAD.EditorInput.Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
        public void Initialize()
        {
            Application.DocumentManager.MdiActiveDocument.ImpliedSelectionChanged += new EventHandler(doc_ImpliedSelectionChanged);
            ed.WriteMessage("\n+++初始化成功+++");
        }
        public void Terminate() { } //释放初始化，即CAD退出时才会执行
        public void doc_ImpliedSelectionChanged(object sender, EventArgs e)
        {

            ed.WriteMessage("\n++选择模式++");
        }

    }
}

理解二 （只要新建或切换文档 立马致命错误）

using Autodesk.AutoCAD.Runtime;
using System;
using Application = Autodesk.AutoCAD.ApplicationServices.Application;
using Document = Autodesk.AutoCAD.ApplicationServices.Document;

using Autodesk.AutoCAD.ApplicationServices;

namespace ClassLibrary1
{
    public class Main : IExtensionApplication
    {
        Autodesk.AutoCAD.EditorInput.Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
        public void Initialize()
        {
            Application.DocumentManager.DocumentCreated += new DocumentCollectionEventHandler(DocumentManager_DocumentCreated);
            Application.DocumentManager.DocumentActivated += new DocumentCollectionEventHandler(DocumentManager_DocumentActivated);
            Application.DocumentManager.MdiActiveDocument.ImpliedSelectionChanged += new EventHandler(doc_ImpliedSelectionChanged);

                        Application.DocumentManager.MdiActiveDocument.ImpliedSelectionChanged += new EventHandler(doc_ImpliedSelectionChanged);
            ed.WriteMessage("\n+++初始化成功+++");
        }
        public void Terminate() { } //释放初始化，即CAD退出时才会执行

        public void DocumentManager_DocumentCreated(object sender, EventArgs e)
        {
            Application.DocumentManager.MdiActiveDocument.ImpliedSelectionChanged += new EventHandler(doc_ImpliedSelectionChanged);
        }
        public void DocumentManager_DocumentActivated(object sender, EventArgs e)
        {
            Application.DocumentManager.MdiActiveDocument.ImpliedSelectionChanged += new EventHandler(doc_ImpliedSelectionChanged);
        }

        public void doc_ImpliedSelectionChanged(object sender, EventArgs e)
        {
            ed.WriteMessage("\n++选择模式++");
        }

    }
}