https://forums.autodesk.com/t5/objectarx-forum/undo-begin-in-code/m-p/9739027#M4099 <P>In C++ ObjectArx, is there a way to do UNDO "begin" and UNDO "end" without using&nbsp;<EM>acedCommand?</EM></P> Thu, 10 Sep 2020 03:37:17 GMT Kyudos 2020-09-10T03:37:17Z https://forums.autodesk.com/t5/objectarx-forum/undo-begin-in-code/m-p/9739027#M4099 <P>In C++ ObjectArx, is there a way to do UNDO "begin" and UNDO "end" without using&nbsp;<EM>acedCommand?</EM></P> Thu, 10 Sep 2020 03:37:17 GMT https://forums.autodesk.com/t5/objectarx-forum/undo-begin-in-code/m-p/9739027#M4099 Kyudos 2020-09-10T03:37:17Z https://forums.autodesk.com/t5/objectarx-forum/undo-begin-in-code/m-p/9747000#M4100 <P>You can lockDocument()/unlockDocument() to record undo data. Note the optional arguments to lockDocument().</P> Tue, 15 Sep 2020 03:03:24 GMT https://forums.autodesk.com/t5/objectarx-forum/undo-begin-in-code/m-p/9747000#M4100 owenwengerd 2020-09-15T03:03:24Z https://forums.autodesk.com/t5/objectarx-forum/undo-begin-in-code/m-p/9747533#M4101 <P>With COM/ActiveX you can use AcadDocument.StartUndoMark and AcadDocument.EndUndoMark</P> Tue, 15 Sep 2020 09:33:23 GMT https://forums.autodesk.com/t5/objectarx-forum/undo-begin-in-code/m-p/9747533#M4101 Alexander.Rivilis 2020-09-15T09:33:23Z