Access Violation Exception when using ACAPI_DrawingPrimitive_ShapePrims

oleh_arch — Wed, 27 Aug 2025 17:31:26 GMT

While evaluating the examples in API Kit I run into the following issue. I'm getting access violation exception when DrawPrimitives called

GSErrCode ret = ACAPI_DrawOrder_DrawOrderInit(); if (ret != NoError) return; API_Element elem; while ((ret = ACAPI_DrawOrder_DrawOrderGetNext((Int32)(APIFilt_OnVisLayer | APIFilt_OnActFloor), &elem.header)) == NoError) { if (elem.header.type != API_WallID) continue; ret = ACAPI_DrawingPrimitive_ShapePrims(elem.header, DrawPrimitives); } ACAPI_DrawOrder_DrawOrderTerm();

Draw primitive contains only the following code

static GSErrCode DrawPrimitives(const API_PrimElement* primElem, const void* par1, const void* par2, const void* par3) { DBPrintf("Draw Primitives type %s", primElem->header.typeID); return NoError; }

The logic is called while the story window is active. I'm currently running in the DEMO mode. Could it be the reason for the exception? Or am I doing something else wrong?

Any help is highly appreciated.

Re: Access Violation Exception when using ACAPI_DrawingPrimitive_ShapePrims

Hiromichi Shinkawa — Tue, 09 Sep 2025 01:30:13 GMT

Hi, I purpose the problem was the type conversion:

DBPrintf("Draw Primitives type %s", primElem->header.typeID);

Could you try to change %s to %d to see whether the error still happen?

DBPrintf("Draw Primitives type %d", primElem->header.typeID);

HTH.

topic Re: Access Violation Exception when using ACAPI_DrawingPrimitive_ShapePrims in Archicad C++ API

Access Violation Exception when using ACAPI_DrawingPrimitive_ShapePrims

Re: Access Violation Exception when using ACAPI_DrawingPrimitive_ShapePrims