Add nethost for ps4

Source/Tools/Flax.Build/Utilities/WinAPI.cs

@@ -26,5 +26,148 @@ namespace Flax.Build
 
             public delegate bool SymEnumerateSymbolsProc64(string SymbolName, ulong SymbolAddress, uint SymbolSize, IntPtr UserContext);
         }
+
+        public static class kernel32
+        {
+            [DllImport("kernel32.dll", SetLastError = true)]
+            public static extern IntPtr GlobalLock(IntPtr hMem);
+
+            [DllImport("kernel32.dll", SetLastError = true)]
+            [return: MarshalAs(UnmanagedType.Bool)]
+            public static extern bool GlobalUnlock(IntPtr hMem);
+        }
+
+        public static class user32
+        {
+            [DllImport("user32.dll")]
+            public static extern bool EmptyClipboard();
+
+            [DllImport("user32.dll", SetLastError = true)]
+            [return: MarshalAs(UnmanagedType.Bool)]
+            public static extern bool OpenClipboard(IntPtr hWndNewOwner);
+
+            [DllImport("user32.dll", SetLastError = true)]
+            [return: MarshalAs(UnmanagedType.Bool)]
+            public static extern bool CloseClipboard();
+
+            [DllImport("user32.dll", SetLastError = true)]
+            public static extern IntPtr SetClipboardData(uint uFormat, IntPtr data);
+
+            [DllImport("user32.dll")]
+            public static extern int MessageBoxA(IntPtr hWnd, string lpText, string lpCaption, uint uType);
+        }
+
+        // https://github.com/CopyText/TextCopy/blob/main/src/TextCopy/WindowsClipboard.cs
+        public static void SetClipboard(string text)
+        {
+            user32.OpenClipboard(IntPtr.Zero);
+            user32.EmptyClipboard();
+            IntPtr hGlobal = default;
+            try
+            {
+                var bytes = (text.Length + 1) * 2;
+                hGlobal = Marshal.AllocHGlobal(bytes);
+                var target = kernel32.GlobalLock(hGlobal);
+                try
+                {
+                    Marshal.Copy(text.ToCharArray(), 0, target, text.Length);
+                }
+                finally
+                {
+                    kernel32.GlobalUnlock(target);
+                }
+                user32.SetClipboardData(13, hGlobal);
+                hGlobal = default;
+            }
+            finally
+            {
+                if (hGlobal != default)
+                {
+                    Marshal.FreeHGlobal(hGlobal);
+                }
+                user32.CloseClipboard();
+            }
+        }
+
+        // https://gist.github.com/nathan130200/53dec19cdcd895281fb568ec63e1275b
+        public static class MessageBox
+        {
+            public enum Buttons
+            {
+                AbortRetryIgnore = 0x00000002,
+                CancelTryIgnore = 0x00000006,
+                Help = 0x00004000,
+                Ok = 0x00000000,
+                OkCancel = 0x00000001,
+                RetryCancel = 0x00000005,
+                YesNo = 0x00000004,
+                YesNoCancel = 0x00000003,
+            }
+
+            public enum Result
+            {
+                Abort = 3,
+                Cancel = 2,
+                Continue = 11,
+                Ignore = 5,
+                No = 7,
+                Ok = 1,
+                Retry = 10,
+                Yes = 6,
+            }
+
+            public enum DefaultButton : uint
+            {
+                Button1 = 0x00000000,
+                Button2 = 0x00000100,
+                Button3 = 0x00000200,
+                Button4 = 0x00000300,
+            }
+
+            public enum Modal : uint
+            {
+                Application = 0x00000000,
+                System = 0x00001000,
+                Task = 0x00002000
+            }
+            
+            public enum Icon : uint
+            {
+                Warning = 0x00000030,
+                Information = 0x00000040,
+                Question = 0x00000020,
+                Error = 0x00000010
+            }
+
+            public static Result Show(string text)
+            {
+                return (Result)user32.MessageBoxA(IntPtr.Zero, text, "\0", (uint)Buttons.Ok);
+            }
+
+            public static Result Show(string text, string caption)
+            {
+                return (Result)user32.MessageBoxA(IntPtr.Zero, text, caption, (uint)Buttons.Ok);
+            }
+
+            public static Result Show(string text, string caption, Buttons buttons)
+            {
+                return (Result)user32.MessageBoxA(IntPtr.Zero, text, caption, (uint)buttons);
+            }
+
+            public static Result Show(string text, string caption, Buttons buttons, Icon icon)
+            {
+                return (Result)user32.MessageBoxA(IntPtr.Zero, text, caption, ((uint)buttons) | ((uint)icon));
+            }
+
+            public static Result Show(string text, string caption, Buttons buttons, Icon icon, DefaultButton button)
+            {
+                return (Result)user32.MessageBoxA(IntPtr.Zero, text, caption, ((uint)buttons) | ((uint)icon) | ((uint)button));
+            }
+
+            public static Result Show(string text, string caption, Buttons buttons, Icon icon, DefaultButton button, Modal modal)
+            {
+                return (Result)user32.MessageBoxA(IntPtr.Zero, text, caption, ((uint)buttons) | ((uint)icon) | ((uint)button) | ((uint)modal));
+            }
+        }
     }
 }