Remove useless DllImport & flags

Author: Jack251970

Flow.Launcher/Helper/SingleInstance.cs

@@ -1,11 +1,5 @@
 using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.IO;
-using System.Runtime.InteropServices;
 using System.IO.Pipes;
-using System.Security;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Windows;
@@ -14,172 +8,6 @@
 // modified to allow single instace restart
 namespace Flow.Launcher.Helper
 {
-    internal enum WM
-    {
-        NULL = 0x0000,
-        CREATE = 0x0001,
-        DESTROY = 0x0002,
-        MOVE = 0x0003,
-        SIZE = 0x0005,
-        ACTIVATE = 0x0006,
-        SETFOCUS = 0x0007,
-        KILLFOCUS = 0x0008,
-        ENABLE = 0x000A,
-        SETREDRAW = 0x000B,
-        SETTEXT = 0x000C,
-        GETTEXT = 0x000D,
-        GETTEXTLENGTH = 0x000E,
-        PAINT = 0x000F,
-        CLOSE = 0x0010,
-        QUERYENDSESSION = 0x0011,
-        QUIT = 0x0012,
-        QUERYOPEN = 0x0013,
-        ERASEBKGND = 0x0014,
-        SYSCOLORCHANGE = 0x0015,
-        SHOWWINDOW = 0x0018,
-        ACTIVATEAPP = 0x001C,
-        SETCURSOR = 0x0020,
-        MOUSEACTIVATE = 0x0021,
-        CHILDACTIVATE = 0x0022,
-        QUEUESYNC = 0x0023,
-        GETMINMAXINFO = 0x0024,
-
-        WINDOWPOSCHANGING = 0x0046,
-        WINDOWPOSCHANGED = 0x0047,
-
-        CONTEXTMENU = 0x007B,
-        STYLECHANGING = 0x007C,
-        STYLECHANGED = 0x007D,
-        DISPLAYCHANGE = 0x007E,
-        GETICON = 0x007F,
-        SETICON = 0x0080,
-        NCCREATE = 0x0081,
-        NCDESTROY = 0x0082,
-        NCCALCSIZE = 0x0083,
-        NCHITTEST = 0x0084,
-        NCPAINT = 0x0085,
-        NCACTIVATE = 0x0086,
-        GETDLGCODE = 0x0087,
-        SYNCPAINT = 0x0088,
-        NCMOUSEMOVE = 0x00A0,
-        NCLBUTTONDOWN = 0x00A1,
-        NCLBUTTONUP = 0x00A2,
-        NCLBUTTONDBLCLK = 0x00A3,
-        NCRBUTTONDOWN = 0x00A4,
-        NCRBUTTONUP = 0x00A5,
-        NCRBUTTONDBLCLK = 0x00A6,
-        NCMBUTTONDOWN = 0x00A7,
-        NCMBUTTONUP = 0x00A8,
-        NCMBUTTONDBLCLK = 0x00A9,
-
-        SYSKEYDOWN = 0x0104,
-        SYSKEYUP = 0x0105,
-        SYSCHAR = 0x0106,
-        SYSDEADCHAR = 0x0107,
-        COMMAND = 0x0111,
-        SYSCOMMAND = 0x0112,
-
-        MOUSEMOVE = 0x0200,
-        LBUTTONDOWN = 0x0201,
-        LBUTTONUP = 0x0202,
-        LBUTTONDBLCLK = 0x0203,
-        RBUTTONDOWN = 0x0204,
-        RBUTTONUP = 0x0205,
-        RBUTTONDBLCLK = 0x0206,
-        MBUTTONDOWN = 0x0207,
-        MBUTTONUP = 0x0208,
-        MBUTTONDBLCLK = 0x0209,
-        MOUSEWHEEL = 0x020A,
-        XBUTTONDOWN = 0x020B,
-        XBUTTONUP = 0x020C,
-        XBUTTONDBLCLK = 0x020D,
-        MOUSEHWHEEL = 0x020E,
-
-
-        CAPTURECHANGED = 0x0215,
-
-        ENTERSIZEMOVE = 0x0231,
-        EXITSIZEMOVE = 0x0232,
-
-        IME_SETCONTEXT = 0x0281,
-        IME_NOTIFY = 0x0282,
-        IME_CONTROL = 0x0283,
-        IME_COMPOSITIONFULL = 0x0284,
-        IME_SELECT = 0x0285,
-        IME_CHAR = 0x0286,
-        IME_REQUEST = 0x0288,
-        IME_KEYDOWN = 0x0290,
-        IME_KEYUP = 0x0291,
-
-        NCMOUSELEAVE = 0x02A2,
-
-        DWMCOMPOSITIONCHANGED = 0x031E,
-        DWMNCRENDERINGCHANGED = 0x031F,
-        DWMCOLORIZATIONCOLORCHANGED = 0x0320,
-        DWMWINDOWMAXIMIZEDCHANGE = 0x0321,
-
-        #region Windows 7
-        DWMSENDICONICTHUMBNAIL = 0x0323,
-        DWMSENDICONICLIVEPREVIEWBITMAP = 0x0326,
-        #endregion
-
-        USER = 0x0400,
-
-        // This is the hard-coded message value used by WinForms for Shell_NotifyIcon.
-        // It's relatively safe to reuse.
-        TRAYMOUSEMESSAGE = 0x800, //WM_USER + 1024
-        APP = 0x8000
-    }
-
-    [SuppressUnmanagedCodeSecurity]
-    internal static class NativeMethods
-    {
-        /// <summary>
-        /// Delegate declaration that matches WndProc signatures.
-        /// </summary>
-        public delegate IntPtr MessageHandler(WM uMsg, IntPtr wParam, IntPtr lParam, out bool handled);
-
-        [DllImport("shell32.dll", EntryPoint = "CommandLineToArgvW", CharSet = CharSet.Unicode)]
-        private static extern IntPtr _CommandLineToArgvW([MarshalAs(UnmanagedType.LPWStr)] string cmdLine, out int numArgs);
-
-
-        [DllImport("kernel32.dll", EntryPoint = "LocalFree", SetLastError = true)]
-        private static extern IntPtr _LocalFree(IntPtr hMem);
-
-
-        public static string[] CommandLineToArgvW(string cmdLine)
-        {
-            IntPtr argv = IntPtr.Zero;
-            try
-            {
-                int numArgs = 0;
-
-                argv = _CommandLineToArgvW(cmdLine, out numArgs);
-                if (argv == IntPtr.Zero)
-                {
-                    throw new Win32Exception();
-                }
-                var result = new string[numArgs];
-
-                for (int i = 0; i < numArgs; i++)
-                {
-                    IntPtr currArg = Marshal.ReadIntPtr(argv, i * Marshal.SizeOf(typeof(IntPtr)));
-                    result[i] = Marshal.PtrToStringUni(currArg);
-                }
-
-                return result;
-            }
-            finally
-            {
-
-                IntPtr p = _LocalFree(argv);
-                // Otherwise LocalFree failed.
-                // Assert.AreEqual(IntPtr.Zero, p);
-            }
-        }
-
-    } 
-
     public interface ISingleInstanceApp 
     { 
          void OnSecondAppStarted(); 
@@ -219,10 +47,6 @@ public static class SingleInstance<TApplication>
 
         #endregion
 
-        #region Public Properties
-
-        #endregion
-
         #region Public Methods
 
         /// <summary>
@@ -264,56 +88,6 @@ public static void Cleanup()
 
         #region Private Methods
 
-        /// <summary>
-        /// Gets command line args - for ClickOnce deployed applications, command line args may not be passed directly, they have to be retrieved.
-        /// </summary>
-        /// <returns>List of command line arg strings.</returns>
-        private static IList<string> GetCommandLineArgs( string uniqueApplicationName )
-        {
-            string[] args = null;
-
-            try
-            {
-                // The application was not clickonce deployed, get args from standard API's
-                args = Environment.GetCommandLineArgs();
-            }
-            catch (NotSupportedException)
-            {
-              
-                // The application was clickonce deployed
-                // Clickonce deployed apps cannot recieve traditional commandline arguments
-                // As a workaround commandline arguments can be written to a shared location before 
-                // the app is launched and the app can obtain its commandline arguments from the 
-                // shared location               
-                string appFolderPath = Path.Combine(
-                    Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), uniqueApplicationName);
-
-                string cmdLinePath = Path.Combine(appFolderPath, "cmdline.txt");
-                if (File.Exists(cmdLinePath))
-                {
-                    try
-                    {
-                        using (TextReader reader = new StreamReader(cmdLinePath, Encoding.Unicode))
-                        {
-                            args = NativeMethods.CommandLineToArgvW(reader.ReadToEnd());
-                        }
-
-                        File.Delete(cmdLinePath);
-                    }
-                    catch (IOException)
-                    {
-                    }
-                }
-            }
-
-            if (args == null)
-            {
-                args = new string[] { };
-            }
-
-            return new List<string>(args);
-        }
-
         /// <summary>
         /// Creates a remote server pipe for communication. 
         /// Once receives signal from client, will activate first instance.