LunaWin/LunaWin/LunaWin/LunaHidden.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace LunaWin
{
    public partial class LunaHidden : Form
    {
        private const int WM_WININICHANGE = 0x001A;
        public LunaHidden()
        {
            InitializeComponent();
        }
        protected override void WndProc(ref Message m)
        {
            // Listen for operating system messages.
            switch (m.Msg)
            {
                // The WM_ACTIVATEAPP message occurs when the application
                // becomes the active application or becomes inactive.
                case WM_WININICHANGE:
                    // create string
                    string str;


                    // read string from memory pointer
                    unsafe
                    {
                        str = new string((char*)m.LParam);
                    }

                    // if string is "ImmersiveColorSet,"
                    // regenerate icon

                    if (str == "ImmersiveColorSet")
                    {
                        using (LunaIcon li = new LunaIcon())
                        {
                            li.Display();
                        }
                    }

                    break;
            }

            // pass message through
            base.WndProc(ref m);
        }
    }
}