topic Re: Access Violation inside of REGEN3 in ObjectARX Forum

Access Violation inside of REGEN3

fehrsZBFB9 — Fri, 11 Sep 2020 11:10:31 GMT

Hallo Guys,

I sometimes get an Access Violation inside of REGEN3. I call it after AcDbVisibilityOverrule has done its work and the display needs an refresh. It doesn't matter if I do it per acedCommandS from inside a command or by hand. It only happens from time to time. What could be the reason for such an access violation? I'm not sure where to start. Any hints? It does not help to replace REGEN3 with native C++ functions. If I do it crashes inside of acedRedraw. There was a previous call to REGEN which always runs fine.

Re: Access Violation inside of REGEN3

tbrammer — Tue, 15 Sep 2020 09:39:18 GMT

Check whether you close all objects that you opened within your overridden methods.

Avoid to open any objects kForWrite within your implementation of

AcDb::Visibility AcDbVisibilityOverrule::visibility(const AcDbEntity* pSubject)

Also I would check whether your AcDbVisibilityOverrule causes the problem by simply returning the defaults:

AcDb::Visibility MyVisibilityOverride::setVisibility( AcDbEntity *pSubject, AcDb::Visibility newVal, Adesk::Boolean doSubents ) { return AcDbEntity::subSetVisibility(pSubject, newVal, doSubents); // your Code } AcDb::Visibility MyVisibilityOverride::visibility() { return AcDbEntity::subVisibility(); /// your code }

If you still get crashes you have to search the reason elsewhere.

Re: Access Violation inside of REGEN3

fehrsZBFB9 — Tue, 15 Sep 2020 12:24:22 GMT

Maybe this crash has nothing to do with my code. It only happens with Advance Steel. Neither with pure AutoCAD nor with Architecture. Thanks anyway.