Can't find ModelessOperationWill Start Event in Dot net

[JanetDavidson]

Hello everybody. Hope somebody could help me

In objectArx  Editor  object has  ModelessOperationWillStart . But how could I use this in my vb net ?

ObjectBrowser doesn't show it ?!!!

Janet.

[Alexander.Rivilis]

This topic so old but today I've found another solution without using ObjectARX for checking OPM start/stop property editing.  It is look like this solution can be used with AutoCAD 2010+:

using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Internal.PropertyInspector;
using System.Runtime.InteropServices.ComTypes;

// This line is not mandatory, but improves loading performances
[assembly: CommandClass(typeof(Rivilis.OPMReactors))]

namespace Rivilis
{
  public class OPMReactors
  {

    [CommandMethod("OPMReactorsStart")]
    public void OPMReactorsStart() 
    {
      Document doc = Application.DocumentManager.MdiActiveDocument;
      if (doc == null) return;
      Editor ed = doc.Editor;
      PropertyInspectorEventManager pim = PropertyInspectorEventManager.Instance();
      pim.propertyWillChange += propertyWillChange;
      pim.propertyChanged += propertyChanged;
    }

    [CommandMethod("OPMReactorsStop")]
    public void OPMReactorsStop()
    {
      PropertyInspectorEventManager pim = PropertyInspectorEventManager.Instance();
      pim.propertyWillChange -= propertyWillChange;
      pim.propertyChanged -= propertyChanged;
    }

    private void propertyChanged(object sender, PropertyInspectorEventArgs e)
    {
      Document doc = Application.DocumentManager.MdiActiveDocument;
      if (doc == null) return;
      Editor ed = doc.Editor;
      ed.WriteMessage("\npropertyChanged");
    }

    private void propertyWillChange(object sender, PropertyInspectorEventArgs e)
    {
      Document doc = Application.DocumentManager.MdiActiveDocument;
      if (doc == null) return;
      Editor ed = doc.Editor;
      ed.WriteMessage("\npropertyWillChanged");
    }
  }
}