topic Re: Set Selection Resolution in Navisworks API Forum

Set Selection Resolution

xaotix — Thu, 19 Dec 2024 02:12:13 GMT

Is there a way to alter the resolution programmatically?

File, Layer, First Object, Last Object, Last Unique, Geometry.

Re: Set Selection Resolution

naveen.kumar.t — Thu, 19 Dec 2024 05:07:49 GMT

Please try using the below code

using (LcUOptionLock optionLock = new LcUOptionLock()) { // Get the root options using the lock LcUOptionSet rootOptions = LcUOption.GetRoot(optionLock); // Retrieve the pointer to the specific option by name LcUNameRefPtr optionPointer = rootOptions.GetName("interface.selection.resolution"); // Check if the pointer exists before attempting to set the value if (optionPointer != null) { /* * Selection Resolution Options: * 0 = File * 1 = Layer * 2 = First Object * 3 = Last Unique * 4 = Last Object * 5 = Geometry */ // Update the selection resolution option to "Geometry" (value 5) string resolutionValue = "RoamerGUI_PickResolution:5"; rootOptions.SetName("interface.selection.resolution", new NamedConstant(resolutionValue)); LcOpRegistry.SaveGlobalOptions(); } }

Re: Set Selection Resolution

ulski1 — Thu, 19 Dec 2024 07:23:45 GMT

For Navisworks Simulate 2024 you can write some code which modifies this registry key:
HKEY_CURRENT_USER\SOFTWARE\Autodesk\Navisworks Simulate\21.0\GlobalOptions\interface\selection

the default value is:
Name: Resolution
Data: 8 26:RoamerGUI_PickResolution:4Last Object

Note that for Navisworks 2024 you alter version 210.0 since Navisworks 2024 is Navisworks version 21

Br
Ulrik

Re: Set Selection Resolution

alexisDVJML — Sat, 21 Dec 2024 21:17:31 GMT

An old post of mine, with all Navisworks Global Settings at the time (Navisworks 2020) and how to read/change them:
Accessing & Modifying Navisworks Global Settings

Re: Set Selection Resolution

xaotix — Sun, 12 Jan 2025 22:16:54 GMT

thank you guys!

Re: Set Selection Resolution

naveen.kumar.t — Tue, 29 Jul 2025 10:29:34 GMT

Hi @imustafa_adel,

You asked me how to read the value of 'Selection Resolution' (by contacting me via chat message).
Here is the answer.

using (LcUOptionLock optionLock = new LcUOptionLock()) { // Get the root options using the lock LcUOptionSet rootOptions = LcUOption.GetRoot(optionLock); LcUNameRefPtr s=rootOptions.GetName("interface.selection.resolution"); MessageBox.Show(s.GetPtr().ToString()); }

I'm posting it here so that others with similar questions can also refer to this thread and find the answer.

Re: Set Selection Resolution

imustafa_adel — Mon, 04 Aug 2025 08:48:10 GMT

Thank you I've also refined the method a little bit as shown below:

public static void SetSelectionResolution(SelectionResolution selectionResolution)
{
var commandstr = "interface.selection.resolution";
using (LcUOptionLock optionLock = new LcUOptionLock())
{
LcUOptionSet rootOptions = LcUOption.GetRoot(optionLock);

LcUNameRefPtr optionPointer = rootOptions.GetName(commandstr);

if (optionPointer != null)
{
string resolutionValue = "RoamerGUI_PickResolution:2";
switch (selectionResolution)
{
case SelectionResolution.File:
resolutionValue = "RoamerGUI_PickResolution:0";
break;
case SelectionResolution.Layer:
resolutionValue = "RoamerGUI_PickResolution:1";
break;
case SelectionResolution.FirstObject:
resolutionValue = "RoamerGUI_PickResolution:2";
break;
case SelectionResolution.LastUnique:
resolutionValue = "RoamerGUI_PickResolution:3";
break;
case SelectionResolution.LastObject:
resolutionValue = "RoamerGUI_PickResolution:4";
break;
case SelectionResolution.Geometry:
resolutionValue = "RoamerGUI_PickResolution:5";
break;
}
rootOptions.SetName(commandstr, new NamedConstant(resolutionValue));
LcOpRegistry.SaveGlobalOptions();
}
}
}

public static SelectionResolution GetSelectionResolution()
{
var res = string.Empty;
using (LcUOptionLock optionLock = new LcUOptionLock())
{
var commandstr = "interface.selection.resolution";
LcUOptionSet rootOptions = LcUOption.GetRoot(optionLock);
LcUNameRefPtr optionPointer = rootOptions.GetName(commandstr);
var data = new VariantData();
var result = rootOptions.GetDataValue(commandstr, data);
if (result) res = data.ToNamedConstant().Name;
}
switch (res)
{
case "RoamerGUI_PickResolution:0":
return SelectionResolution.File;
case "RoamerGUI_PickResolution:1":
return SelectionResolution.Layer;
case "RoamerGUI_PickResolution:2":
return SelectionResolution.FirstObject;
case "RoamerGUI_PickResolution:3":
return SelectionResolution.LastUnique;
case "RoamerGUI_PickResolution:4":
return SelectionResolution.LastObject;
case "RoamerGUI_PickResolution:5":
return SelectionResolution.Geometry;
default:
return SelectionResolution.FirstObject;
}
}

public enum SelectionResolution
{
File,
Layer,
FirstObject,
LastUnique,
LastObject,
Geometry
}