Catching command window output with .NET-api

[ottosson_mathias]

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.

[_gile]

Hi,

You can play with the LOGFILEMODE and LOGFILENAME system variables.

[ottosson_mathias]

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.

[Alexander.Rivilis]

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@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.

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

[jabowabo · Accepted solution]

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);

[ottosson_mathias]

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?

[jabowabo]

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 😜)

[ottosson_mathias]

This works.

Thanks a lot!