fix:issue #110

Ink Canvas/App.xaml.cs

@@ -423,7 +423,7 @@ namespace Ink_Canvas
                 try
                 {
                     string exePath = Process.GetCurrentProcess().MainModule.FileName;
-                    Process.Start(exePath);
+                    Process.Start(exePath, "-m");
                 }
                 catch { }
                 Environment.Exit(1);
@@ -644,7 +644,7 @@ namespace Ink_Canvas
                         try
                         {
                             string exePath = Process.GetCurrentProcess().MainModule.FileName;
-                            Process.Start(exePath);
+                            Process.Start(exePath, "-m");
                         }
                         catch { }
                         Environment.Exit(1);
@@ -704,7 +704,7 @@ namespace Ink_Canvas
                             Environment.Exit(1);
                         }
                         string exePath = Process.GetCurrentProcess().MainModule.FileName;
-                        Process.Start(exePath);
+                        Process.Start(exePath, "-m");
                     }
                     // CrashActionType.NoAction 时不重启，直接退出
                 }

Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs

@@ -1643,10 +1643,14 @@ namespace Ink_Canvas {
         }
 
         public void BtnRestart_Click(object sender, RoutedEventArgs e) {
-            Process.Start(System.Windows.Forms.Application.ExecutablePath, "-m");
-            App.IsAppExitByUser = true;
-            CloseIsFromButton = true;
-            Application.Current.Shutdown();
+            try {
+                Process.Start(System.Windows.Forms.Application.ExecutablePath, "-m");
+                App.IsAppExitByUser = true;
+                CloseIsFromButton = true;
+                Application.Current.Shutdown();
+            } catch (Exception ex) {
+                LogHelper.NewLog($"重启程序时出错: {ex.Message}");
+            }
         }
 
         private void SettingsOverlayClick(object sender, MouseButtonEventArgs e) {

Ink Canvas/MainWindow_cs/MW_TrayIcon.cs

@@ -62,20 +62,21 @@ namespace Ink_Canvas
             var mainWin = (MainWindow)Current.MainWindow;
             if (mainWin.IsLoaded) {
                 IsAppExitByUser = true;
-                
+
                 try {
-                    // 启动新实例
+                    // 启动新实例，添加 -m 参数允许多实例启动
                     string exePath = Process.GetCurrentProcess().MainModule.FileName;
                     ProcessStartInfo startInfo = new ProcessStartInfo();
                     startInfo.FileName = exePath;
+                    startInfo.Arguments = "-m";
                     startInfo.UseShellExecute = true;
-                    
+
                     // 启动进程但不等待
                     Process.Start(startInfo);
                 } catch (Exception ex) {
                     LogHelper.NewLog($"重启程序时出错: {ex.Message}");
                 }
-                
+
                 // 退出当前实例
                 Current.Shutdown();
             }