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...

AddOn for creating parametric diagrams in Archicad

Hello. I am trying to implement an idea of a helper addon for quick 2D diagrammatic design. It should be a sort of overlay/underlay drawing that is dynamic and accepts user input (clicks, menus, etc.).Any hints on how to start (c++ or python) are wel...

APX addon file not working with AC24 on Mac

When I try to build an example from the v24 API Kit, the Product is a .bundle file. Whereas when I build a custom addon using the template from the kit, the Product is an APX file. And on loading the addon in Archicad24, I get the following error in ...

Resolved! crash around ACAPI_3D_GetCurrentWindowSight

Hi, guys.There is something strange occurs in my add-on. I am quite sure the crash happens around ACAPI_3D_GetCurrentWindowSight when it is called for its 3rd time. I was wondering if the destructor of Modeler::SightPtr itself releases the space crea...

Resolved! Skip exclusive access by code?

Hi!So my goal is to open a file and to run some functions on the opened file. I am able to do that with catchprojectevent, but my problem is when the file is already opened. AC then asks if I want to open the file with exclusive access or as read onl...

Location of AddOn SourceCode for compilation

HiWhere do you keep the source-code of the addon to be compiled? Does it have to be in the 'Examples' folder of the API Kit?Thanks

Resolved! When I link lib to use ORACLE database - archicad say's "addon is outdated"

I need to use ORACLE database with ARCHICAD.And when I link my add-on with lib from SDK Oracle Instant Client, ARCHICAD not recognizes my apx file as addon and writes that it is outdated.Please help me understand what the reason is?

Resolved! APIERR_baddatabase when trying to render after AllInputFinished event

Hi,I am trying to call a function that renders when the event AllInputFinished occurs.My goal is to open AC file, and render after it’s opened.The problem is that I get Apierr_baddatabase when calling it from this event.When calling the exact same co...

Resolved! addon.apx not a valid win32 application

Hello,On trying to compile an addon on visual-studio-2017, I get the error: "addonName.apx is not a valid win32 application".. What's the problem here? (I have compiled this addon earlier and it worked.)Thanks.

Writing back an array

I'm working on a GDL add-on (you know, the thing you call with "open("NAME", "", ...)").What I want to achieve is to yield an array, in the best case a two-dimensional one, back to GDL.I know I have to write inside the `InputFromDataFile` function to...

Resolved! How to find ARCHICAD on a computer?

Hi, everyone.I found something confusing that there is multiple regsitry information about ARCHICAD in Registery Editor. I have installed ARCHICAD 21, 22, 23, 24. However, they are under different registry folders. I can find ARCHICAD 22, 23, 24 unde...

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