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...

Resolved! [SOLVED] Property missing

Assuming that there is initially no property on Property Manager. Create a property on Property Manager. Export the created property. Create a scheme/schedule with criteria of the created property. Delete the create property on Property Manager. Impo...

Need, API devkits for AC 17

Hello, recently registered as a developer of add-ons, awarded the developer's ID. But I can not find and download the API devkits for AC 17, for a number of reasons I need to start with this version. Help who can.

API devkits for AC21 are available!

You can download them from the API site!

Prevent element from copy user data

I use function function ACAPI_Element_SetUserData to attach additional information. The problem is that this data is copied with element when i "Drag a Copy" and then I have to deal with unwanted behaviorur caused by that. Is there a way to prevent...

[SLVD] Proper way of adding penbackground color to attribute

Hello again,The add-on which I am developing needs to work on international and german version of Archicad 20. The add-on creates an buildingmaterial attribute, and then sets cutFillBackgroundPen, cutFillPen through indexes and in the international v...

Starting Scripting on Archicad

Hi guys!I would like to start creating scripts on Archicad 20!My kind of scripts has nothing to do with GDL objects.I would like to create automation scripts.For example:1) Automatic use the "Fit To Grid Cell" function on my camera's captures, withou...

[SLVD]Automate Elements selection that are on specific layer

Hi to all AC developer community! Have one little question - how I can through AC API select all specific Elements (for example: polylines) that are on specific layer (e.g.: Layer name: 2d - polylines). Thank You in advance!Dmytro Radomtsev.

Adding an Element question

Hey, It's your new favourite newbie again I have another question: Let's say that I created a new composite and I want programatically to draw 1m of it at the center of the screen. Is this possible, because I can't find anything similar in the Elemen...

[SOLVED] German letters not showing properly

Hello again,I'm tryging to create a new attribute with name "Sto-Dämmplatte Top32", but the ä symbol seems to break like in the image bellow. What could be the possible reason for that? My code is something like that: const char * name = vectorit->na...

Proper way of adding a property value to single attribute

Hello again,I'm struggling with the following situation:1. I create a new group and new string property which I will use to put website url in it.2. I create a new building material and make the new property available for it.3. ( This is the problem ...

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