https://community.graphisoft.com/t5/Archicad-C-API/How-To-Get-Wall-Area-square-meter-m2-from-Morph/m-p/275895#M2108 The contributor person himself.<BR /> Is it a correct answer with this?<BR /> <PRE>API_ElementQuantity quantity; API_QuantitiesMask mask; API_Quantities quantities; API_QuantityPar par; char buffer[256]; quantities.elements = &amp;quantity; //MORPH面積 BNZeroMemory(&amp;quantity, sizeof(API_ElementQuantity)); ACAPI_ELEMENT_QUANTITY_MASK_SETFULL(mask); GSErrCode err = ACAPI_Element_GetQuantities(elem.header.guid, nullptr, &amp;quantities, &amp;mask); if (err == NoError) { //Wall Area ? (Square Meter) double d = quantity.morph.surface; }</PRE> Fri, 18 Jun 2021 02:25:42 GMT Anonymous 2021-06-18T02:25:42Z https://community.graphisoft.com/t5/Archicad-C-API/How-To-Get-Wall-Area-square-meter-m2-from-Morph/m-p/275894#M2107 <DIV class="actalk-migrated-content">Please teach me that<BR />How To Get Wall Area (square meter=m2) from [Morph].<BR /><BR />Parameter or Property or Calcurate Method ?<BR />Element or Element_Memo ?</DIV> Tue, 14 Sep 2021 07:34:53 GMT https://community.graphisoft.com/t5/Archicad-C-API/How-To-Get-Wall-Area-square-meter-m2-from-Morph/m-p/275894#M2107 Anonymous 2021-09-14T07:34:53Z https://community.graphisoft.com/t5/Archicad-C-API/How-To-Get-Wall-Area-square-meter-m2-from-Morph/m-p/275895#M2108 The contributor person himself.<BR /> Is it a correct answer with this?<BR /> <PRE>API_ElementQuantity quantity; API_QuantitiesMask mask; API_Quantities quantities; API_QuantityPar par; char buffer[256]; quantities.elements = &amp;quantity; //MORPH面積 BNZeroMemory(&amp;quantity, sizeof(API_ElementQuantity)); ACAPI_ELEMENT_QUANTITY_MASK_SETFULL(mask); GSErrCode err = ACAPI_Element_GetQuantities(elem.header.guid, nullptr, &amp;quantities, &amp;mask); if (err == NoError) { //Wall Area ? (Square Meter) double d = quantity.morph.surface; }</PRE> Fri, 18 Jun 2021 02:25:42 GMT https://community.graphisoft.com/t5/Archicad-C-API/How-To-Get-Wall-Area-square-meter-m2-from-Morph/m-p/275895#M2108 Anonymous 2021-06-18T02:25:42Z