Archicad C++ API

New Developer Hub Migration Completed

[UPDATE] Hi all, thank you for your patience. We are happy to announce that the migration of the Developer Hub has been completed. The Developer Forum is officially retired. To get a quick overview of the new Developer Hub, kindly check out this arti...

Using the Development Kit with Visual Studio 2022

Hi everyone, In the last couple of weeks we got several questions regarding Visual Studio 2022 and the API DevKit. If you try to use VS 2022 to build your AddOns, you have to keep in mind a few things. First, Archicad 25 and Archicad 26 is built with...

Go To Navigator view

Hi help please.having problems with knowing what/how to pass a navigator's view into this function: APIDo_GoToViewID"This function simulates the action when you open a view from the Project Navigator."I have theses structures:API_NavigatorItem API_Na...

Embedding a Web Browser

Hello everyone,i am trying to integrate a web browser (e.g. Chromium CEF) into an ArchiCad Addon. Specifically i want to embed the browser window into a pallete or a non modal dialog in ArchiCAD. I am wondering what would be the best approach to do t...

Intercept layer hidden/show events.

Hello,I've implemented all the below functions and put a breakpoint in them. It appears that none of the below is hit when I hide a layer/show all.ACAPI_Notify_CatchProjectEventACAPI_Notify_CatchViewEventACAPI_Notify_CatchToolChangeACAPI_Notify_Catch...

How to triangulate arcs

Hello, I'm new to Archicad and am looking into a bug whereby shell objects doesn't appear ( I suspect because there isn't an implementation to handle arcs/shell). The original implementer of our archicad codebase left so I'm picking up the pieces so ...

ARCHICAD Developer Resource Site

Hi fellow developers,A new API site (http://archicadapi.graphisoft.com) has just been opened. From now on this will be the central place for: registrationdownload the development kitsaccess and search the latest API documentationread FAQs and a blog ...

[SOLVED] Level Dimension dimForm not recognizing symbols

Greetings, I've tried creating a Level Dimension element with 'dimForm' set to 10 and after creation it reverts back to 0. Even if I don't set it thru code (just the ACAPI_Element_GetDefaults) but set the symbol thru ArchiCAD as default it still reve...

Work environment

I would like to modify the W/E by either changing the layout, shape and size of the drop down menus or adding a "ribbon" like in the MS products. Is this something that can be done with the development API? My target is the toolbox right now as I wou...

Create a Drawing from a file?

How do you link a drawing to an external file? On ArchiCAD you just click on "an external source" -> click "Browse" -> choose the file. How do you do this with the API? What are the requirements? Creating a drawing from a view is simply by copying th...

Column wrapped finish

Is there a way of getting the surface area of this wrapped finish on column? (Construction method: Wrapped)The first thought that came to mind is the veneer surface area. But when I get the value, it is zero (0.00). This means that this finish is not...

[SOLVED] API_BuildingMaterialType->id crashes

I am trying to access the ID of a building material through API_BuildingMaterialType.id. But the returned attribute got a null value for the id (also for manufacturer and description). (EDIT: And also on API_Attribute.header->uniStringNamePtr) short ...

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