topic Re: dll loaded success, but Initialize doesn't work in .NET Forum

dll loaded success, but Initialize doesn't work

adn019LKFW — Fri, 10 Jun 2022 08:01:51 GMT

I use the netload command to load my dll, but the code in MyApp.Initialize() doesn't execute and my command doesn't work. This problem does not appear on the cad2012 version, but sometimes it occurs in the cad2016,2018,2020 version.

If I build new project, this problem does not appear.

So what's wrong with my project？

using Autodesk.AutoCAD.ApplicationServices; using Autodesk.AutoCAD.EditorInput; using Autodesk.AutoCAD.Runtime; [assembly: ExtensionApplication(typeof(MyNamespace.MyApp))] namespace MyNamespace{ public class MyApp : IExtensionApplication { public void Initialize() { Document doc = Application.DocumentManager.MdiActiveDocument; Editor ed = doc.Editor; ed.WriteMessage("MyDll load success"); } //...other code } }

Re: dll loaded success, but Initialize doesn't work

_gile — Fri, 10 Jun 2022 09:08:31 GMT

Hi,

A project referencing AutoCAD 2012 libraries (AcDbMgd.ll and AcMgd.dll) won't work on later versions. You have to build a new project referencing AcCoreMgd.dill, AcDbMgd.ll and AcMgd.dll from AutoCAD 2013 or later libraries.

Re: dll loaded success, but Initialize doesn't work

adn019LKFW — Fri, 10 Jun 2022 09:25:29 GMT

Thank you for your reply,

I'm using different project for each cad version, and both correctly reference the corresponding version of the dlls.

So it doesn't look like the problem is caused by this reason.

Re: dll loaded success, but Initialize doesn't work

Alexander.Rivilis — Fri, 10 Jun 2022 09:33:40 GMT

You have to compare Application.DocumentManager.MdiActiveDocument and null before call doc.Editor.

Re: dll loaded success, but Initialize doesn't work

adn019LKFW — Fri, 10 Jun 2022 09:57:38 GMT

Thank you for your reply,

I'm sure Application.DocumentManager.MdiActiveDocument is not null.

I try to attach to acad.exe in debug mode, Initialize() is not invoked.

Re: dll loaded success, but Initialize doesn't work

_gile — Fri, 10 Jun 2022 10:57:45 GMT

In addition to @Alexander.Rivilis said, you should also handle the Apllication.Idle event.

public void Initialize() { Application.Idle += OnIdle; } private void OnIdle(object sender, EventArgs e) { var doc = Application.DocumentManager.MdiActiveDocument; if (doc != null) { Application.Idle -= OnIdle; doc.Editor.WriteMessage("\nMyDll load success.\n"); } }

回复： dll loaded success, but Initialize doesn't work

adn019LKFW — Fri, 10 Jun 2022 12:36:33 GMT

I rebuild the project a few times without any modification and it works. It's so weird.

Re: dll loaded success, but Initialize doesn't work

CadWCCNL — Sat, 11 Jun 2022 00:16:23 GMT

@Alexander.Rivilis wrote:
You have to compare Application.DocumentManager.MdiActiveDocument and null before call doc.Editor.

I remember seeing something like this in Helper.cs.

..\Autodesk\ObjectARX_for_AutoCAD_2023_Win_64bit_dlm\samples\dotNet\EventsWatcher

try { // Application.DocumentManager.Count should be used to check zero doc status // MdiActiveDocument returns non null sometimes even if in zero doc status! if( Application.DocumentManager.MdiActiveDocument != null && Application.DocumentManager.Count != 0) Helper.CmdLineMessage(str); else Helper.InfoMessageBox(str); Helper.StreamToRichTextControl(str); } catch (System.Exception ex) { Helper.Message(ex); }

// Application.DocumentManager.Count should be used to check zero doc status

// MdiActiveDocument returns non null sometimes even if in zero doc status!

Possible why it was working and then not working no? Should possible consider adding to avoid the error in the future.

回复： dll loaded success, but Initialize doesn't work

adn019LKFW — Sat, 11 Jun 2022 06:18:58 GMT

My problem is that Initialize() is not invoked after netload, and commands in this project are not registered, Editor.WriteMessage() is just an example added here.

Re: dll loaded success, but Initialize doesn't work

varshaauti27 — Fri, 24 Jun 2022 15:35:33 GMT

@adn019LKFW

Remove

[assembly: ExtensionApplication(typeof(MyNamespace.MyApp))]

It should work as expected!