RhinoInside. Cannot run it

Rhino Developer
3

Hi @dale,

thank you for you reply. Your code worked for me. It think it is same as I already have from GitHub but used it without success. Now I can use RhinoCommon without Rhino. Thank you again.

Unfortunately, my goal little bit harder. I would like to open, run and recompute GH from excel. Is it even possible?

I have searched this forum and GitHub for some sample. Unfortunately, again without success. I am able to create a excel Plugin (VSTO) and combine it with this code. When I run project it raise a exception that
RhinoCommon.dll cannot be found.

My code for plugin is below:

  public partial class ThisAddIn
    {
        Rhino.Runtime.InProcess.RhinoCore m_rhino_core;


        #region Plugin static constructor
        static readonly string SystemDir = (string)Microsoft.Win32.Registry.GetValue
        (
          @"HKEY_LOCAL_MACHINE\SOFTWARE\McNeel\Rhinoceros\7.0\Install", "Path",
          Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles), "Rhino 7", "System")

        );

        static ThisAddIn()
        {
            ResolveEventHandler OnRhinoCommonResolve = null;
            AppDomain.CurrentDomain.AssemblyResolve += OnRhinoCommonResolve = (sender, args) =>
            {
                const string rhinoCommonAssemblyName = "RhinoCommon";
                var assembly_name = new AssemblyName(args.Name).Name;

                if (assembly_name != rhinoCommonAssemblyName)
                    return null;

                AppDomain.CurrentDomain.AssemblyResolve -= OnRhinoCommonResolve;
                return Assembly.LoadFrom(Path.Combine(SystemDir, rhinoCommonAssemblyName + ".dll"));
            };
        }
        #endregion // Plugin static constructor

        private void ThisAddIn_Startup(object sender, System.EventArgs e)
        {
            try
            {
                //TODO >> grab Excel product name for scheme
                var scheme_name = "RhinoInsideExcel";
                //Run Rhino.Inside no UI
                m_rhino_core = new Rhino.Runtime.InProcess.RhinoCore(new[] { $"/scheme={scheme_name}" });
                //TODO >> Run Rhino.Inside with UI - Error -200
                //m_rhino_core = new Rhino.Runtime.InProcess.RhinoCore(new[] { $"/scheme={scheme_name}" }, WindowStyle.Maximized);
            }
            catch (Exception ex)
            {
                //System.Windows.Forms.MessageBox.Show(ex.Message);
                System.Windows.Forms.MessageBox.Show("Cannot load Rhino Inside Addin");

            }

        }

        private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
        {
            try
            {
                m_rhino_core?.Dispose();
            }
            catch
            {
                // ignored
            }
        }

What I have discovered is that SystemDir is always null. Frankly, I am not sure if I understand code correctly but SystemDir should be a path to a Rhino itself and this line

    return Assembly.LoadFrom(Path.Combine(SystemDir, rhinoCommonAssemblyName + ".dll"));

should be direction to RhinoCommon. My program fails and this line as RhinoCommon is not loaded.

    m_rhino_core = new Rhino.Runtime.InProcess.RhinoCore(new[] { $"/scheme={scheme_name}" });

So my questions are follows:

  • What am I doing wrong?
  • Is it possible to combine Excel na Rhin/GH in the way I would like?
  • How to run GH from Excel and load RhinoCommon properly?
  • Is there some kind of a guide for RhinoInside/RhinoInsideExcel?
  • What are differences between RhinoInside and RhinoInterface, regarding this post?

Thank you for your time and reply.

Best regards

Ondřej