Where is the documentation for Autodesk.AutoCAD.Interop?

[Anonymous]

I've looked in the ObjectARX SDK, in AutoCAD Help, on the Autodesk Developer Network, on Stack Overflow and the broader internet, but I can't find documentation for the Autodesk.AutoCAD.Interop dll, only documentation for the in-process .NET API.

For example, there's plenty of info about the Application object:

http://docs.autodesk.com/ACD/2013/ENU/index.html?url=files/GUID-4E1AAFA9-740E-4097-800C-CAED09CDFF12...

...but no similar information about the AcadApplication object exposed by Autodesk.AutoCAD.Interop. Where can I find detailed information about the interop API?

There are some examples of using it to start AutoCAD:

http://through-the-interface.typepad.com/through_the_interface/2007/12/launching-autoc.html

How to close a file in Autocad using C# keeping acad.exe running?

...etc. But I'm looking for object graphs, method descriptions, etc. for the interop API, i.e., the kind of information available for the in-process .NET API.

[norman.yuan · Accepted solution]

If you are talking about the .NET DLL provided by ObjectARX SDK, it is simply a .NET wrapper of AitoCAD COM API. You can also generate it with VS, or .NET's type library importing tool, instead of using the one from ObjectARX SDK.

Since it is just a .NET wrapped COM API, you have its documentation very well supplied since VBA was available in AutoCAD, as long as you have AutoCAD installed. Simply start AutoCAD, go to VBA editor (command "VBAIDE") and then open the "Object Borwser". In the Object Browser window, select any object/property/method, click "?" on the Object Browser window, the document on the selected object/property/method pops up with abundant code samples.

[Anonymous]

Thanks for the quick reply Norman. That's exactly what I was looking for!

[Alexander.Rivilis]

From http://www.autodesk.com/developautocad page:

ActiveX API
The ActiveX documentation is installed with the program and is organized into two guides:

• AutoCAD 2015 – Developer's Guide
• AutoCAD 2015 – Reference Guide

The ActiveX API documentation also be found locally at: 

• %ProgramFiles%\Common Files\Autodesk Shared\acad_aag.chm
• %ProgramFiles%\Common Files\Autodesk Shared\acadauto.chm

Updates to the ActiveX API documentation:

• AutoCAD 2013

[BKSpurgeon]

thank you for your answer. But when I click on the "?" in the VB object browser Nothing is comign up - would you know where I can get a hold of the documentation?

any help would be much appreciated.

regards

BK