topic Catching command window output with .NET-api in .NET Forum

Catching command window output with .NET-api

ottosson_mathias — Fri, 13 Sep 2019 08:08:06 GMT

Are there any way of catching the command window history/text in AutoCAD using the .NET API? I would like to be able to save it for debugging purposes.

Re: Catching command window output with .NET-api

_gile — Fri, 13 Sep 2019 08:18:25 GMT

Hi,

You can play with the LOGFILEMODE and LOGFILENAME system variables.

Re: Catching command window output with .NET-api

ottosson_mathias — Fri, 13 Sep 2019 08:40:49 GMT

Thanks. (Just fyi, both links goes to LOGFILEMODE)

So no api-access? I would like to analyze it in real-time in my add-in, and reading from a file feels a bit awkward.

Re: Catching command window output with .NET-api

Alexander.Rivilis — Fri, 13 Sep 2019 10:50:47 GMT

@ottosson_mathias wrote:

Are there any way of catching the command window history/text in AutoCAD using the .NET API? I would like to be able to save it for debugging purposes.

It is possible with ObjectARX: https://adndevblog.typepad.com/autocad/2012/09/trapping-the-output-from-the-autocad-text-screen-command-prompt.html

Re: Catching command window output with .NET-api

jabowabo — Mon, 16 Sep 2019 12:55:57 GMT

Autodesk.AutoCAD.Internal.Utils.GetLastCommandLines(int, bool)

Example:

int lineCount = 20;
bool ignoreNull = true;
string cmds = "";
List<string> cmdLineList = Autodesk.AutoCAD.Internal.Utils.GetLastCommandLines(lineCount, ignoreNull);
cmdLineList.Reverse();
foreach (string str in cmdLineList)
{
  cmds += str + Environment.NewLine;
}
MessageBox.Show(cmds);

Re: Catching command window output with .NET-api

ottosson_mathias — Tue, 17 Sep 2019 15:12:52 GMT

Thanks @jabowabo, I'll try it in the coming days.

Bonus question: Is it possible to get all the lines, not just a fixed amount?

Re: Catching command window output with .NET-api

jabowabo — Tue, 17 Sep 2019 15:16:59 GMT

The method takes an int parameter so you'll have to supply something. You could just give it a very high number like 999999 (unless you think you'll have more than a million lines 😜)

Re: Catching command window output with .NET-api

ottosson_mathias — Wed, 18 Sep 2019 08:46:04 GMT

This works.

Thanks a lot!