Dismiss the tray menu when clicking away from it

src/ClickLightWin/Interop/NativeMethods.cs

@@ -89,6 +89,15 @@ public static partial bool SetWindowPos(
     [return: MarshalAs(UnmanagedType.Bool)]
     public static partial bool DestroyIcon(nint hIcon);
 
+    // ---- Foreground activation -----------------------------------------------
+
+    // A tray context menu shown by hand never gets foreground activation, so a
+    // click outside it fails to dismiss it. Forcing our process to the foreground
+    // first restores the normal click-away close (the classic Win32 tray fix).
+    [LibraryImport("user32.dll")]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool SetForegroundWindow(nint hWnd);
+
     // ---- Global hotkeys ------------------------------------------------------
 
     public const int WM_HOTKEY = 0x0312;

src/ClickLightWin/Tray/TrayIcon.cs

@@ -1,5 +1,6 @@
 using System.Drawing;
 using System.Windows.Forms; // NotifyIcon, ContextMenuStrip
+using ClickLightWin.Interop;
 
 namespace ClickLightWin.Tray;
 
@@ -83,8 +84,12 @@ public TrayIcon(Settings settings, LaunchAtLoginController launchAtLogin,
         // screen, so this stays correct for other taskbar positions too.
         _icon.MouseUp += (_, e) =>
         {
-            if (e.Button == MouseButtons.Right)
-                menu.Show(Cursor.Position, ToolStripDropDownDirection.AboveLeft);
+            if (e.Button != MouseButtons.Right) return;
+            // Give our process the foreground first; without it a hand-shown tray
+            // menu won't dismiss when you click elsewhere (you'd be stuck picking an
+            // item to close it). See NativeMethods.SetForegroundWindow.
+            NativeMethods.SetForegroundWindow(menu.Handle);
+            menu.Show(Cursor.Position, ToolStripDropDownDirection.AboveLeft);
         };
     }