Get element's extended data

[ReignBough]

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• You can get the element's default data by ACAPI_Element_GetDefaults and its default extended data by ACAPI_Element_GetDefaultsExt.
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• You can change the element's default data by ACAPI_Element_ChangeDefaults and its default extended data by ACAPI_Element_ChangeDefaultsExt
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• You can create an element by ACAPI_Element_Create and with extended data by ACAPI_Element_CreateExt
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• You can change the element's data by ACAPI_Element_Change and its extended data by ACAPI_Element_ChangeExt
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• You can get the element's data by ACAPI_Element_Get

How to I get the element's extended data? In my case, the detail marker extended data.

I created one using ACAPI_Element_CreateExt functions. The data I input was perfectly saved in the detail marker. But now I want to get it, I can't seem to find it since there is no corresponding ACAPI_Element_GetExt function for it. I've tried using/getting the parameters using:

owner.libInd = 0;
owner.typeID = iElemHead.typeID;
owner.index = iElemHead.index;
ACAPI_Goodies(APIAny_OpenParametersID, &owner)

...but it returns 0x81060068 (APIERR_BADPARS).

EDIT 1:
BTW, am I right that the "Ext" stands for "extended [data]".

[Tibor Lorantfy]

The element's extended datas are stored in elementmemos.
So ACAPI_Element_GetMemo function is what are you looking for.

API_Element			element; 
API_ElementMemo		memo; 
GSErrCode			err = NoError; 
 
// after you have the element's guid: 
err = ACAPI_Element_GetMemo (element.header.guid, &memo);
// extended data will be in memo structure