remove blank spaces

src/Snap.Hutao/Snap.Hutao/Core/Windowing/XamlWindowController.cs

@@ -104,9 +104,7 @@ internal sealed class XamlWindowController
             args.Handled = true;
             window.Hide();
 
-            RECT iconRect = serviceProvider.GetRequiredService<NotifyIconController>().GetRect();
-            RECT primaryRect = StructMarshal.RECT(DisplayArea.Primary.OuterBounds);
-            if (!IntersectRect(out _, in primaryRect, in iconRect))
+            if (!IsNotifyIconVisible())
             {
                 new ToastContentBuilder()
                     .AddText(SH.CoreWindowingNotifyIconPromotedHint)
@@ -133,6 +131,28 @@ internal sealed class XamlWindowController
         }
     }
 
+    private unsafe bool IsNotifyIconVisible()
+    {
+        RECT iconRect = serviceProvider.GetRequiredService<NotifyIconController>().GetRect();
+
+        if (UniversalApiContract.IsPresent(WindowsVersion.Windows11))
+        {
+            RECT primaryRect = StructMarshal.RECT(DisplayArea.Primary.OuterBounds);
+            return IntersectRect(out _, in primaryRect, in iconRect);
+        }
+
+        HWND shellTrayWnd = FindWindowExW(default, default, "Shell_TrayWnd", default);
+        HWND trayNotifyWnd = FindWindowExW(shellTrayWnd, default, "TrayNotifyWnd", default);
+        HWND button = FindWindowExW(trayNotifyWnd, default, "Button", default);
+
+        if (GetWindowRect(button, out RECT buttonRect))
+        {
+            return !EqualRect(in buttonRect, in iconRect);
+        }
+
+        return false;
+    }
+
     #region SystemBackdrop & ElementTheme
 
     private void OnOptionsPropertyChanged(object? sender, PropertyChangedEventArgs e)

src/Snap.Hutao/Snap.Hutao/Win32/User32.cs

@@ -55,6 +55,22 @@ internal static class User32
     [SupportedOSPlatform("windows5.0")]
     public static extern BOOL DestroyWindow(HWND hWnd);
 
+    [DllImport("USER32.dll", CallingConvention = CallingConvention.Winapi, ExactSpelling = true)]
+    [SupportedOSPlatform("windows5.0")]
+    public static unsafe extern BOOL EqualRect(RECT* lprc1, RECT* lprc2);
+
+    [DebuggerStepThrough]
+    public static unsafe BOOL EqualRect(ref readonly RECT rc1, ref readonly RECT rc2)
+    {
+        fixed (RECT* lprc1 = &rc1)
+        {
+            fixed (RECT* lprc2 = &rc2)
+            {
+                return EqualRect(lprc1, lprc2);
+            }
+        }
+    }
+
     [DllImport("USER32.dll", CallingConvention = CallingConvention.Winapi, ExactSpelling = true)]
     [SupportedOSPlatform("windows5.0")]
     public static extern HWND FindWindowExW([AllowNull] HWND hWndParent, [AllowNull] HWND hWndChildAfter, [AllowNull] PCWSTR lpszClass, [AllowNull] PCWSTR lpszWindow);
@@ -112,6 +128,19 @@ internal static class User32
         }
     }
 
+    [DllImport("USER32.dll", CallingConvention = CallingConvention.Winapi, ExactSpelling = true)]
+    [SupportedOSPlatform("windows5.0")]
+    public static unsafe extern BOOL GetWindowRect(HWND hWnd, RECT* lpRect);
+
+    [DebuggerStepThrough]
+    public static unsafe BOOL GetWindowRect(HWND hWnd, out RECT rect)
+    {
+        fixed (RECT* lpRect = &rect)
+        {
+            return GetWindowRect(hWnd, lpRect);
+        }
+    }
+
     [DllImport("USER32.dll", CallingConvention = CallingConvention.Winapi, ExactSpelling = true)]
     [SupportedOSPlatform("windows5.0")]
     public static unsafe extern uint GetWindowThreadProcessId(HWND hWnd, [MaybeNull] uint* lpdwProcessId);