My First Plugin - Lesson 3 "GetActiveObject" error

[llorden4]

I'm getting a "GetActiveObject" is not a member of "Marshal" error when attempting this tutorial using VS 2022.

A Google search on this leads me to believe I might not have the correct Framework loaded.  The VS setup tutorial left a lot of gray area on modules to select so perhaps my selections weren't on the mark and I'm not to the point where I'm fully understanding what I'm doing just yet.  I've taken a screenshot to show my current loaded Frameworks, perhaps someone can identify what I might be off on (and steps to correct would be appreciated).

 

[bradeneuropeArthur]

For a "plug in" this is not the correct way:

This method is used for a standalone app.

Use this method instead:

[Ralf_Krieg]

Hello

In addition, as I can see you reference to .Net Core Framework. What kind of template did you used to create your project?

[llorden4]

Interesting, this is the tutorial code "as-is" provided.  I wonder what other code might turn out to be unreliable?

[llorden4]

I'm new to Visual Studio and again the tutorial wasn't helpful with which modules to select so I had to completely guess at it.  I believe I chose the "WindowsFormsApp" and the "NetCoreFramework", figured those picks were pretty safe.

I haven't figured out yet how to get back to that selection menu to add or remove other framework features, I'm still in that learning curve.  Perhaps these options weren't available in the 2017 version and the experience was a bit easier with this tutorial?

[JelteDeJong]

I don't have a tutorial for you. But on GitHub, I have 2 (simple) working addons. You can use them as examples or as a starting point for your own addons. (These addons are also in the Autodesk app store.) If you are going to use them as a start point don't forget to update the GUID or people will get into problems if they load your addons and mine at the same time.  have a look at them:

https://github.com/hjalte79/ShowFullyConstraint

https://github.com/hjalte79/OccurrenceBundler