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...

Batch Conversion of ArchiCAD GSM Files to other file types

Hello, I am looking for ways to automatically convert GSM files to other file types, preferably such as OBJ, 3DS or alike. Looking through the API, I have not really found any pointers on where to go. I would like to do this without user input, if po...

My error with API Dev Kit

Hi, AllI wish to make MFC DLL (Regular DLL with MFC statically linked) in VS 2005 C++ with API Dev Kit 11. In procedure : static void Do_Open (void){ API_FileOpenPars fop;GSErrCode err;BNZeroMemory (&fop, sizeof (API_FileOpenPars));fop.fileTypeID = A...

Linker error - unresolved external symbol GetClassInfo

Hi! I got linker error: error LNK2001: unresolved external symbol "public: virtual class GS::ClassInfo * __thiscall GS::Object::GetClassInfoW(void)const " (?GetClassInfoW@Object@GS@@UBEPAVClassInfo@2@XZ) after that as added following code GS::Array> ...

AC DEVkit 12 examples build error "windows.h" missing?

I have downloaded the add-on development kit for AC12. i have tried to build the examples with visual C++ 2005 express edition and i get the following error:1>c:\Program Files\Graphisoft\API Development Kit 12.2156\Support\Modules\GSRoot\Win32Interfa...

[SOLVED] Dockable palette - is it possible?

Is it possible to create a dockable custom palette like Info Box - in the other words, is it possible to create a window, which can be made floating or docked to some side of the working area?Thanks.

Addon getting information from external database (MySQL)

Hi all!I have the following problem:I need to make an addon for Archicad12, that operates with data from mysql database. I wrote basic addon with some menu and handlers for them, now i need to connect to mysql, but can't do anything.I tried to use Od...

How do I access external custom controls ??

I would like to know how could I call an external custom control (ex color picker) from archicad and store the selected value in a variable for later use in Archicad.Any idea how to do it?Thanks

programmatically saving

Hi!How is possible to save a project programmatically from an ArchiCAD add-on?Seems that can be done using Communication Manager. But in this case I have know "core" add-on MDID (Module ID) and call command's signature.May be there is a more simpler ...

visual studio c++ .net 2005 ArchiCAD ADD-ON COMPILE ERROR

HIvisual studio c++ -> new project -> ArchiCAD ADD-ON project create -> building error occurhelp me.

Material->GetTextureIndex() always return zero

Hi! I try write rendering Add-on (use reference Rendering DevKit) for ArchiCAD 11. But I can't solve one problem: When i create wrapper for MaterialDialogInterfaceImp interface, in event UpdatePreview I can't get material's texture. Material->GetText...

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