Autocad .NET - 扩展命令行

Question

I'm developing an Autocad .NET plugin ( .dll loaded via NETLOAD ), and I'm using a lot the Document.Editor object to get user inputs, like strings, numbers, points and entities.

I want some of my prompts to show several options for the user to select (exactly as it happens with the native -DWGUNITS command).

Displaying the prompt and the options is pretty ok (I'm doing it with an Editor.GetInteger , passing a multiline message with the options, and sometimes one or two keywords).

But I cannot figure out how to expand the command bar to make it show all the options (otherwise the user must manually expand it to see the list)

So, here is my command currently (private content in blue):

The options are limited to these three lines (changing CLIPROMPTLINES doesn't seem the best option, but if you know how to do it with .NET , it's a good start).

.

And here is what I want:

Answer 1

It's simple and this option is in Autodesk.Autocad.ApplicationServices.Application.DisplayTextScreen :

using Autodesk.Autocad.ApplicationServices;
using Autodesk.AutoCAD.EditorInput;

private int AskUser(IEnumerable<string> userOptions)
{

        Document document= Application.DocumentManager.MdiActiveDocument;
        Editor editor = document.Editor;

        //Autocad's setting before you change
        bool originalSetting = CadApp.DisplayTextScreen;

        string message = "Available options:\n";
        message += string.join("\n",
            userOptions.Select((opt,i)=>i.ToString() + ": " + opt));
        message += "\nChoose an option"

        PromptIntegerOptions promptOptions = new PromptIntegerOptions(message);
        promptOptions.LowerLimit = 0;
        promptOptions.UpperLimit = userOptions.Count - 1;

        //display full command bar
        Application.DisplayTextScreen = true;
        var result = editor.GetInteger(promptOptions);

        int selection;
        if (result.Status == PromptStatus.OK)
            selection = result.Value;
        else
            selection = -1;

        //restore original setting
        Application.DisplayTextScreen = originalSetting;

        return selection;
}

Answer 2

I develop several plugins for Autodesk AutoCAD or Plant 3D and engaged to Autodesk Knowledge Forum (for .NET) for 3 years ( my Autodesk Knowledge profile ), and when I have some plugin requirement that SDK/API do not give the resources, I recurring to C# PInvoke API ; with this certainly you will change User Interface behavior that you need, using Spy++ to get the metadata of AutoCAD UI component, and set the updates that needs to do.