After digging into Bentley dlls with ILSpy and windbg-ing I found a possible solution.
It does not open the window for user to set parameters because MyVol has set the property Name.
When this is not null or empty then the logic insiede Bentley.Building.Mechanical.CreateAreaFromSolid(...) does not rasie the window
MyVol bb = new MyVol(locale._elementoLocale);
bb.CreateSolid();
List<Bentley.Building.Mechanical.VolumeDefinitions.IVolumeDefinition> volDefs = new List<IVolumeDefinition>();
volDefs.Add(bb);
Bentley.Building.Mechanical.MechAddIn.CreateAreasFromVolumeDefinitions("PLANT_AREA", volDefs);
Where MyVol is
public class MyVol : BaseVolumeDefinition
{
SmartSolidElement _solid;
public MyVol(Element element)
{
_solid = Utilities.ComApp.SmartSolid.ExtrudeClosedPlanarCurve(element, 1000, 1000, false);
this.Name = "aaa1111"; // will avoid to open the form
this.VolumeType = Bentley.Building.Mechanical.VolumeDefinitions.VolumeType.Undefined;
Utilities.ComApp.ActiveModelReference.AddElement(_solid);
Utilities.ComApp.RedrawAllViews(MsdDrawingMode.Normal);
}
public override int CreateSolid()
{
return _solid.MdlElementRef();
}
}
