Associative dimensions on custom entities not working in AutoCAD 2019.

[tripathi.navneet18]

Associative dimensions on custom entities are not working in AutoCAD 2019. 
The functions "acdbEnableDimAssocForEntity" and "acdbDisableDimAssocForEntity" is not present in "AcDimX23.dll".

And since the above mentioned functions are not present it is returning null when trying to getProcAddress() as mentioned below.

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HMODULE hModule = LoadLibrary(_T("AcDimX23.dll"));
exp_acdbEnableDimAssocForEntity fPtrEnableDimAssoc;
if (nullptr != hModule)

fPtrEnableDimAssoc =      (exp_acdbEnableDimAssocForEntity)GetProcAddress(hModule,"acdbEnableDimAssocForEntity");

// fPtrEnableDimAssoc is null after the above function call.

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And because of the above the associative dimensions are not working for the custom entities.

Please have a look into the attached image from the dependency walker for further clarification.

Is there any work around for this??

[Alexander.Rivilis · Accepted solution]

acdbEnableDimAssocForEntity function was moved to acdbNN.lib (and acdbNN.dll) in AutoCAD 2018 and since this version you need to use AcDimXNN.dll

You can easy define it and use without  call LoadLibrary and GetProcAddress :

enum Acad::ErrorStatus __cdecl acdbEnableDimAssocForEntity(class AcRxClass * cls);
enum Acad::ErrorStatus __cdecl acdbDisableDimAssocForEntity(class AcRxClass * cls);