How to create a plug-in for Navisworks that displays the 'Hello World' message to the user. The result of this can be found in the 'BasicPlugin' sample.

This example can be found in: '<drive>:\Program Files\Autodesk\Navisworks <Product> 2015\api\net\examples\PlugIns\BasicPlugIn'.

Overview

Step	Key Information
Create Blank Project
Add API Reference	Autodesk.Navisworks.Api.dll
Add any other references	System.Windows.Forms
Add implementation
Build
Copy output assembly to structured directory in 'Plugins' directory	The 'Plugins' directory is located in the Navisworks installation directory
Hello World!

To create a plug-in

Create a Class library project called BasicPlugin.
Add the API assembly references required.
Add any other references required.

Insert the code required to display a message box on screen:

CopyHello World!

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Text;

//Add two new namespaces
using Autodesk.Navisworks.Api;
using Autodesk.Navisworks.Api.Plugins;


namespace BasicPlugIn
{
   [PluginAttribute("BasicPlugIn.ABasicPlugin",                   //Plugin name
                    "ADSK",                                       //4 character Developer ID or GUID
                    ToolTip = "BasicPlugIn.ABasicPlugin tool tip",//The tooltip for the item in the ribbon
                    DisplayName = "Hello World Plugin")]          //Display name for the Plugin in the Ribbon

   public class ABasicPlugin : AddInPlugin                        //Derives from AddInPlugin
   {
      public override int Execute(params string[] parameters)
      {
         MessageBox.Show(Autodesk.Navisworks.Api.Application.Gui.MainWindow, "Hello World");
         return 0;
      }
   }
}

Build the project and copy assembly into a structure in the Plugins directory of Navisworks
1. <drive>:\Program Files\Autodesk\Navisworks <Product> 2015\Plugins\BasicPlugin.ADSK
2. This can be done using a post-build step
Run Navisworks and select the plugin from the 'Add-Ins' tab.
Hello World!