完善了双指缩放，优化了截图

cmonitor/server/client/ClientConfig.cs

@@ -1,4 +1,5 @@
-using common.libs.database;
+using cmonitor.hijack;
+using common.libs.database;
 using System;
 using System.ComponentModel.DataAnnotations.Schema;
 
@@ -14,15 +15,87 @@ namespace cmonitor.server.client
         {
             this.configDataProvider = configDataProvider;
             ClientConfig config = configDataProvider.Load().Result ?? new ClientConfig();
-            Lock = config.Lock;
+            LLock = config.LLock;
             Wallpaper = config.Wallpaper;
-            Usb = config.Usb;
-            Save();
+            WallpaperUrl = config.WallpaperUrl;
+            HijackConfig = config.HijackConfig;
+            WindowNames = config.WindowNames;
+            SaveTask();
+        }
+
+        private void SaveTask()
+        {
+            Task.Factory.StartNew(() =>
+            {
+                while (true)
+                {
+                    try
+                    {
+                        if (updated)
+                        {
+                            Save();
+                        }
+                    }
+                    catch (Exception)
+                    {
+                    }
+                    System.Threading.Thread.Sleep(5000);
+                }
+            }, TaskCreationOptions.LongRunning);
+        }
+
+        private bool updated = false;
+
+        private bool _llock;
+        public bool LLock
+        {
+            get => _llock; set
+            {
+                _llock = value;
+                updated = true;
+            }
+        }
+
+        private bool _wallpaper;
+        public bool Wallpaper
+        {
+            get => _wallpaper; set
+            {
+                _wallpaper = value;
+                updated = true;
+            }
+        }
+
+        private string _wallpaperUrl;
+        public string WallpaperUrl
+        {
+            get => _wallpaperUrl; set
+            {
+                _wallpaperUrl = value;
+                updated = true;
+            }
+        }
+
+        private HijackConfig _hijackConfig = new HijackConfig();
+        public HijackConfig HijackConfig
+        {
+            get => _hijackConfig; set
+            {
+                _hijackConfig = value;
+                updated = true;
+            }
+        }
+
+        private string[] _windowNames = Array.Empty<string>();
+        public string[] WindowNames
+        {
+            get => _windowNames; set
+            {
+                _windowNames = value;
+                updated = true;
+            }
         }
 
-        public bool Lock { get; set; }
-        public bool Wallpaper { get; set; }
-        public bool Usb { get; set; }
 
         public void Save()
         {