topic How to handle Ctrl click in move grip point? in ObjectARX Forum

How to handle Ctrl click in move grip point?

maisoui — Thu, 06 Dec 2012 13:43:33 GMT

Hi,

I have a custom entity and I'd like to have a similar behavior to the polyline's displacement of the grip point. When you move a grip of a polyline, you can cycle between 3 options (stretch, add vertex and convert to line/arc). Does anyone know how to reproduce this?

Regards,

Jonathan

Re: How to handle Ctrl click in move grip point?

Balaji_Ram — Tue, 11 Dec 2012 08:11:36 GMT

Hello Jonathan,

The multiple grip mode switching is achieved through a protocol extension implemented by the AcDbMultiModesGripPE class.

Your custom entity can implement this PE to support this functionality.

I have attached a .Net sample from the Developer Days 2010 samples.

This sample demonstrates the use of MultiModesGripPE which is the .Net equivalent of AcDbMultiModesGripPE.

I dont have an ObjectARX sample for it, but the attached sample should provide you with the steps.

Re: How to handle Ctrl click in move grip point?

maisoui — Tue, 11 Dec 2012 08:34:10 GMT

Thank you for your answer. I was on the way to implement your solution, but it seems that AcDbMultiModesGripPE (dbMultiModesGrip.h) was introduced in OARX 2011 or 2012. Right?

unfortunately I can't use this protocol extension because I use OARX 2010 (necessary to consider all my clients).

In addition to your response, I would like to know if there is a document containing the list of all protocol extensions available in SDK?

Regards,

Jonathan

Re: How to handle Ctrl click in move grip point?

Balaji_Ram — Tue, 11 Dec 2012 10:45:16 GMT

Yes, you are right. This was introduced in OARX 2011.

Sorry, I am not aware of any separate documentation on PE classes.

The arxdoc.chm also includes those classes.