App/OwnChar.App.Desktop/UI/Windows/MainWindow.cs

using OwnChar.App.Desktop.Api;
using Pilz.Plugins.Advanced;
using Pilz.Plugins.Advanced.UI.Telerik;
using System;
using System.Windows.Forms;
using Telerik.WinControls.UI;

namespace OwnChar.App.Desktop.UI.Windows
{
    public partial class MainWindow : RadTabbedForm
    {
        public MainWindowApi Api { get; }

        public MainWindow()
        {
            Api = new(this);
            InitializeComponent();
            PluginFeatureController.Instance.Features.Get(FeatureCodes.MainTab).InsertItemsTo(radMenuItem2.Items, customClickHandler: MainTabItem_Clicked);
        }

        public class MainWindowApi(MainWindow mainWindow) : IMainWindowApi
        {
            public MainWindow MainWindow { get; } = mainWindow;

            public void CloseTab(Control content)
            {
                throw new NotImplementedException();
            }

            public void OpenTab(Control content)
            {
                throw new NotImplementedException();
            }
        }

        private void MainTabItem_Clicked(object? sender, EventArgs e)
        {
            //if (sender is RadMenuItem item && item.Tag is PluginModule module)
                //...Add() ... module.CreateUI(), "Titel", null);
        }
    }
}