Can't get the two ids of the column element

[WalterWhite]

Can't  get the two ids of the column element, only the GUID

[Barry Kelly]

What 2 IDs - Element ID and GUID?

Where are you trying to get this information?

Autotext labels, GDL, API (add-ons), schedules?

Let me know and I will move this post to the appropriate forum.

Barry.

[WalterWhite]

C++ API(add-ons)

[WalterWhite]

Can't  get the Element ID 

[BerndSchwarzenbacher]

Element ID's are specific properties.

Try something like this:

const API_Guid ELEMID_PROP_GUID = APIGuidFromString ("7E221F33-829B-4FBC-A670-E74DABCE6289");

API_Property prop;
GSErrCode err = ACAPI_Element_GetPropertyValue (elementGuid, ELEMID_PROP_GUID, prop);
if (err != NoError) { return err; }

ACAPI_WriteReport("Element ID: " + prop.value.singleVariant.variant.uniStringValue, true);

[WalterWhite]

Thank you, I will try it, but now there is another problem. When adding a column in the scene, I will get two element, I don't know how to get ID separately.

  ModelerAPI::Model* m_model;
  Int32 nElements = m_model->GetElementCount();

[WalterWhite]

I find that one element id in the column is GUID, what is the relationship between the other element id and Guid?

[BerndSchwarzenbacher]

I haven't used the ModelerAPI yet, but I don't think it helps you in your case (if I understand correctly what you want to do).

Instead check out these two functions and their examples:
ACAPI_Element_Get

ACAPI_Element_GetElemList

GUID is a unique identification number for each element. With Element ID I usually refer to the property which is usually something like "COL - 001".
And on top of that, the Element ID is a built-in property which has it's own GUID. That's also very confusing.

The question really is which information you want exactly. Maybe you can make a screenshot of the information as you see it in the Archicad Window, then we can tell you how to get it with the API.

[WalterWhite]

My ultimate goal is to get the model information for columns, such as Polygon, Vertex. These cannot be obtained directly from the Guid.

[WalterWhite]

I can only get one Guid for the column through ACAPI_Element_GetElemList.
With m_model->GetElementCount(), I find that the column consists of two elements, and then use GetElemGuid() to find that each of them has a different Guid.
I am currently using notification management ElementEventHandlerProc, when APINotifyElement_New, the column will return one Guid and the other Guid will not return, what is the way to get it?
I think it might not be an Element ID, but a column with two Guids, judging from the interface GetElemGuid().