BorderlessWindow/BoardlessWindow/HarmondMod.cs

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Version 1.00
Hot Keys: ctrl+t
*/
using HarmonyLib;
using System;
using System.Runtime.InteropServices;
using UnityEngine;
using UnityEngine.InputSystem;

namespace BoardlessWindow
{
    public class HarmondMod : IHarmonyModHooks
    {
        public static string Logo =
@"    ____                 __          __               _       ___           __             
   / __ )____  _________/ /__  _____/ /__  __________| |     / (_)___  ____/ /___ _      __
  / __  / __ \/ ___/ __  / _ \/ ___/ / _ \/ ___/ ___/| | /| / / / __ \/ __  / __ \ | /| / /
 / /_/ / /_/ / /  / /_/ /  __/ /  / /  __(__  |__  ) | |/ |/ / / / / / /_/ / /_/ / |/ |/ / 
/_____/\____/_/   \__,_/\___/_/  /_/\___/____/____/  |__/|__/_/_/ /_/\__,_/\____/|__/|__/  
V1.0.0 by bmgjet";

        public static bool isTitleBarHidden = false;
        private const int GWL_STYLE = -16;
        private const int WS_BORDER = 0x00800000;
        private const int WS_DLGFRAME = 0x00400000;
        private const int WS_CAPTION = WS_BORDER | WS_DLGFRAME;
        private const uint SWP_NOSIZE = 0x0001;
        private const uint SWP_NOMOVE = 0x0002;
        private const uint SWP_NOZORDER = 0x0004;
        private const uint SWP_FRAMECHANGED = 0x0020;

        [DllImport("user32.dll")]
        private static extern IntPtr GetActiveWindow();

        [DllImport("user32.dll", SetLastError = true)]
        private static extern int GetWindowLong(IntPtr hWnd, int nIndex);

        [DllImport("user32.dll", SetLastError = true)]
        private static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);

        [DllImport("user32.dll", SetLastError = true)]
        private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);

        [DllImport("user32.dll")]
        private static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);

        [StructLayout(LayoutKind.Sequential)]
        private struct RECT { public int Left, Top, Right, Bottom; }

        private static void HideTitleBar()
        {
            IntPtr hWnd = GetActiveWindow();
            // Get the current window rectangle
            if (GetWindowRect(hWnd, out RECT rect))
            {
                int width = rect.Right - rect.Left;
                int height = rect.Bottom - rect.Top;

                // Remove title bar style
                int style = GetWindowLong(hWnd, GWL_STYLE);
                style &= ~WS_CAPTION;
                SetWindowLong(hWnd, GWL_STYLE, style);
                // Move window slightly upwards (-30 pixels) to hide any leftover white strip
                SetWindowPos(hWnd, IntPtr.Zero, rect.Left, rect.Top - 5, width, height + 5, SWP_NOZORDER | SWP_FRAMECHANGED);
            }

            isTitleBarHidden = true;
        }

        private static void ShowTitleBar()
        {
            IntPtr hWnd = GetActiveWindow();

            // Get the current window rectangle
            if (GetWindowRect(hWnd, out RECT rect))
            {
                int width = rect.Right - rect.Left;
                int height = rect.Bottom - rect.Top;

                // Restore title bar style
                int style = GetWindowLong(hWnd, GWL_STYLE);
                style |= WS_CAPTION;
                SetWindowLong(hWnd, GWL_STYLE, style);

                // Move window back to original position
                SetWindowPos(hWnd, IntPtr.Zero, rect.Left, rect.Top + 5, width, height, SWP_NOZORDER | SWP_FRAMECHANGED);
            }

            isTitleBarHidden = false;
        }

        public void OnLoaded(OnHarmonyModLoadedArgs args)//Plugin Load Hook
        {
            HideTitleBar();
            //Output to console window if its loaded.
            if (ConsoleWindow.Instance != null) { ConsoleWindow.Instance.PostMultiLine(Logo); }
        }
        public void OnUnloaded(OnHarmonyModUnloadedArgs args) { ShowTitleBar(); Logo = null; } //Plugin Unload Hook

        //Hook Keyboard Input
        [HarmonyPatch(typeof(CameraManager), "Update")]
        public class CameraManager_Update
        {
            static bool Prefix(CameraManager __instance)
            {
                try
                {
                    if (__instance.cam == null) { return false; }
                    if (Keyboard.current.ctrlKey.isPressed && Keyboard.current.tKey.wasPressedThisFrame) //CTRL+T keys
                    {
                        if (isTitleBarHidden) { ShowTitleBar(); }
                        else { HideTitleBar(); }
                        return false;
                    }
                }
                catch { }
                return true;
            }
        }

        //Hook ConsoleWindow Load
        [HarmonyPatch(typeof(ConsoleWindow), "Startup")]
        public class ConsoleWindow_Startup
        {
            static void Postfix(ConsoleWindow __instance)
            {
                try { __instance.PostMultiLine(Logo); } //Post logo to console window
                catch { }
            }
        }
    }
}