topic AutoCAD Crash when using MODEMACRO in AutoCAD Forum

AutoCAD Crash when using MODEMACRO

Udo_Huebner — Sat, 26 Sep 2020 21:20:00 GMT

When using MODEMACRO with specific Textvalues, AutoCAD crashes immediately.

Only if interested in crashing AutoCAD, start

Command: _MODEMACRO $(getenv, "ACAD")

Tested with
AutoCAD Mechanical 2019
AutoCAD Civil 3D 2021.1

Re: AutoCAD Crash when using MODEMACRO

cheryl.buck — Tue, 29 Sep 2020 17:36:54 GMT

Hi @Udo_Huebner,

Thank you for posting. I tested the _MODEMACRO command in versions 2017-2021, it seems to be working correctly.

When I enter your string, I also see a crash. The subsequent report indicates that the string is invalid, can you tell me more about the string you are entering and how you are using it?

All the best,

Re: AutoCAD Crash when using MODEMACRO

Udo_Huebner — Tue, 29 Sep 2020 19:55:23 GMT

Hi Cheryl, I tested some DIESEL menu settings for a forum question with MODEMACRO, and I got several crashes.

I know

_MODEMACRO $(getenv, "ACAD") is an invalid expression, but hey, AutoCAD should not crash

Even if I use a valid expression with a valid environment variable (without "), AutoCAD crashes.

_MODEMACRO $(getenv, ACAD)

I only wanted to document this unwanted behaviour in a public forum so that others can find this information if a similar behaviour occurs on their site.

If you log this to the development team hopefully this bug get fixed in future. Its only a minor bug, but now its documented.

Re: AutoCAD Crash when using MODEMACRO

cheryl.buck — Tue, 29 Sep 2020 21:00:23 GMT

Hi @Udo_Huebner,

Thanks for the added information. I did some additional testing and reached out to the product team.

The crash appears to be occurring due to the specific Diesel contents, "ACAD" which is not a valid variable for this command, along with "AutoCAD" and "CAD". I understand that a crash is possible and expected with certain expressions because Diesel accesses the application directly. When I choose a different variable, it does not crash.

Do you get the same?

All the best,