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...

How to use DG::ModalDialog without GRC and add items to it

We have static void Do_Dialog (void){DG::ModalDialog dlg(DG::Rect(200,200,700,800));dlg.SetTitle("The Title");dlg.Invoke();} // Do_Dialog dlg created without using any GRC resource. Please anyone explains me and provides correct API to add to dlg for...

How to add custom Context menu to treview in the Dialog

Please help me to understand what I have to do to create own custom context menu on TreeView instead of "What's this?".The problem is : I didn't find solution in case of dialog with treeview created from GRC file. Also anoter problem ... unable to as...

Placing a window on a wall bug.

Hi,I add two walls and an window using the DevToolkit (12.2156).The window is placed outside the wall.I cannot attach the PLN file to to this post (over 256 KB)but I can send it for testing.Notes: 1. if I change some of the input slightly the bug dis...

Material Setting Dialog

Hi, I have a question, I want to use some feature.In Material Setting Dialog(I don't know what's name in english version)Preview window > I want to use in new dialog(I made it)I saw API_Material structure.But i think there is no information and funct...

Floor warning

Hi,In my add-on I add elements (walls, windows, slabs, etc) to different floors.In the end, ArchiCAD prompts a message.Information: As a result of the last operation, Elements have been addedcreated and/or changed their position on correctlyunseen St...

Joint walls

Hi,I add two walls that have joint ending point, but ArchiCAD draws their ends like they are apart.How do I make ArchiCAD draw the walls ends correctly?I hope the following illustration explains the problem:What I Get What I Wish___________ _________...

New using a template file.

How do I create a new project with my own given template file (*.tpl) using the dev toolkit?

HotKeys catching and typing on dialog from COM dll.

I call some form from COM dll.This form has a text field and I try to enter text into.But ArchiCAD react on my typing and i cannot type text into field in my COM dialog.How can i type text on my dialog?

How to add Add-On version info?

I was add version info next way:Add -> Resource -> Version -> Newand now ArchiCAD set next info for Add-On"The file is either not an Add-On or an outdated one that cannot be used with this ArchiCAD version."How I must to specify version info correct?...

Memo size

Hi,I'm trying to return a number of windows/doors in a wall. I havent found a function that does this, but found a guidlist of windows attached to the wall element. Now I'm stuck on getting the number of windows. Tried this: err = ACAPI_Element_GetMe...

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