Added option to lock screen https://github.com/seerge/g-helper/issues/2352

app/Extra.cs

@@ -30,6 +30,7 @@ namespace GHelper
               {"aura", Properties.Strings.ToggleAura},
               {"performance", Properties.Strings.PerformanceMode},
               {"screen", Properties.Strings.ToggleScreen},
+              {"lock", Properties.Strings.LockScreen},
               {"miniled", Properties.Strings.ToggleMiniled},
               {"fnlock", Properties.Strings.ToggleFnLock},
               {"brightness_down", Properties.Strings.BrightnessDown},

app/Input/InputDispatcher.cs

@@ -473,6 +473,10 @@ namespace GHelper.Input
                 case "screenshot":
                     KeyboardHook.KeyPress(Keys.Snapshot);
                     break;
+                case "lock":
+                    Logger.WriteLine("Screen lock");
+                    NativeMethods.LockScreen();
+                    break;
                 case "screen":
                     Logger.WriteLine("Screen off toggle");
                     NativeMethods.TurnOffScreen();

app/NativeMethods.cs

@@ -32,6 +32,15 @@ public class NativeMethods
     [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
     private static extern uint FormatMessage(uint dwFlags, IntPtr lpSource, uint dwMessageId, uint dwLanguageId, out string lpBuffer, uint nSize, IntPtr Arguments);
 
+    [DllImport("user32.dll", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    private static extern bool LockWorkStation();
+
+    public static void LockScreen()
+    {
+        LockWorkStation();
+    }
+
     public static void TurnOffScreen()
     {
         Form f = new Form();

app/Properties/Strings.Designer.cs

@@ -1223,6 +1223,15 @@ namespace GHelper.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Lock Screen.
+        /// </summary>
+        internal static string LockScreen {
+            get {
+                return ResourceManager.GetString("LockScreen", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Logo.
         /// </summary>

app/Properties/Strings.resx

@@ -506,6 +506,9 @@ Do you still want to continue?</value>
   <data name="Lighting" xml:space="preserve">
     <value>Lighting</value>
   </data>
+  <data name="LockScreen" xml:space="preserve">
+    <value>Lock Screen</value>
+  </data>
   <data name="Logo" xml:space="preserve">
     <value>Logo</value>
   </data>