Add PreventClose option

Allows console implementations to prevent consoles from being closed which can cause accidental game closes

BepInEx/Console/ConsoleManager.cs

@@ -81,6 +81,9 @@ namespace BepInEx
 			uint codepage = ConfigConsoleShiftJis.Value ? SHIFT_JIS_CP : (uint)Encoding.UTF8.CodePage;
 
 			Driver.CreateConsole(codepage);
+			
+			if (ConfigPreventClose.Value)
+				Driver.PreventClose();
 		}
 
 		public static void DetachConsole()
@@ -113,6 +116,11 @@ namespace BepInEx
 			"Logging.Console", "Enabled",
 			false,
 			"Enables showing a console for log output.");
+		
+		public static readonly ConfigEntry<bool> ConfigPreventClose = ConfigFile.CoreConfig.Bind(
+			"Logging.Console", "PreventClose",
+			false,
+			"If enabled, will prevent closing the console (either by deleting the close button or in other platform-specific way).");
 
 		public static readonly ConfigEntry<bool> ConfigConsoleShiftJis = ConfigFile.CoreConfig.Bind(
 			"Logging.Console", "ShiftJisEncoding",

BepInEx/Console/IConsoleDriver.cs

@@ -12,6 +12,8 @@ namespace BepInEx
 		bool ConsoleActive { get; }
 		bool ConsoleIsExternal { get; }
 
+		void PreventClose();
+		
 		void Initialize(bool alreadyActive);
 		
 		// Apparently Windows code-pages work in Mono.
@@ -22,5 +24,7 @@ namespace BepInEx
 		void SetConsoleColor(ConsoleColor color);
 		
 		void SetConsoleTitle(string title);
+		
+		
 	}
 }

BepInEx/Console/Unix/LinuxConsoleDriver.cs

@@ -41,6 +41,11 @@ namespace BepInEx.Unix
 
 		public TtyInfo TtyInfo { get; private set; }
 
+		public void PreventClose()
+		{
+			// Not supported by all distros
+		}
+
 		public void Initialize(bool alreadyActive)
 		{
 			// Console is always considered active on Unix

BepInEx/Console/Windows/ConsoleWindow.cs

@@ -46,6 +46,17 @@ namespace UnityInjector.ConsoleUtil
 			IsAttached = true;
 		}
 
+		public static void PreventClose()
+		{
+			if (!IsAttached)
+				return;
+
+			var hwnd = GetConsoleWindow();
+			var hmenu = GetSystemMenu(hwnd, false);
+			if (hmenu != IntPtr.Zero)
+				DeleteMenu(hmenu, SC_CLOSE, MF_BYCOMMAND);
+		}
+		
 		public static string Title
 		{
 			set
@@ -126,5 +137,14 @@ namespace UnityInjector.ConsoleUtil
 
 		[DllImport("kernel32.dll", BestFitMapping = true, CharSet = CharSet.Auto, SetLastError = true)]
 		private static extern bool SetConsoleTitle(string title);
+
+		[DllImport("user32.dll")]
+		private static extern IntPtr GetSystemMenu(IntPtr hwnd, bool bRevert);
+		
+		const UInt32 SC_CLOSE = 0xF060;
+		const UInt32 MF_BYCOMMAND = 0x00000000;
+		
+		[DllImport("user32.dll")]
+		static extern bool DeleteMenu(IntPtr hMenu, uint uPosition, uint uFlags);
 	}
 }

BepInEx/Console/Windows/WindowsConsoleDriver.cs

@@ -18,6 +18,11 @@ namespace BepInEx
 		public bool ConsoleActive { get; private set; }
 		public bool ConsoleIsExternal => true;
 
+		public void PreventClose()
+		{
+			ConsoleWindow.PreventClose();
+		}
+
 		public void Initialize(bool alreadyActive)
 		{
 			ConsoleActive = alreadyActive;