From 83a7ea601dcf9053e2d174a2611f9e48242501a6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=88=98=E7=A3=8A?= <liulei901112@163.com>
Date: Sat, 19 Mar 2022 22:33:00 +0800
Subject: [PATCH] =?UTF-8?q?=E5=8F=AA=E5=85=81=E8=AE=B8=E4=B8=80=E4=B8=AA?=
 =?UTF-8?q?=E5=AE=9E=E4=BE=8B=E8=BF=90=E8=A1=8C=EF=BC=8C=E5=90=A6=E5=88=99?=
 =?UTF-8?q?=E7=83=AD=E9=94=AE=E4=BC=9A=E5=86=B2=E7=AA=81=E5=93=A6?=
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---
 TextLocator/App.xaml.cs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/TextLocator/App.xaml.cs b/TextLocator/App.xaml.cs
index d6b4d0e..d172bf7 100644
--- a/TextLocator/App.xaml.cs
+++ b/TextLocator/App.xaml.cs
@@ -24,6 +24,8 @@ namespace TextLocator
 
         public static TaskbarIcon Taskbar { get => _taskbar; set => _taskbar = value; }
 
+        System.Threading.Mutex mutex;
+
         public App()
         {
             // 初始化线程池大小
@@ -82,6 +84,16 @@ namespace TextLocator
 
         protected override void OnStartup(StartupEventArgs e)
         {
+            bool ret;
+            mutex = new Mutex(true, "TextLocator", out ret);
+            if (!ret)
+            {
+                MessageBox.Show("程序已经在运行");
+                log.Warn("程序已经在运行");
+                AppCore.Shutdown();
+                return;
+            }
+
             // 托盘图标
             _taskbar = (TaskbarIcon)FindResource("Taskbar");
 
-- 
Gitee