added multilang and settings

CursorLang/Interop/PopupWindowNative.cs

@@ -18,6 +18,9 @@ internal static class PopupWindowNative
     [DllImport("user32.dll")]
     private static extern bool GetCursorPos(out Point lpPoint);
 
+    [DllImport("user32.dll")]
+    private static extern IntPtr GetForegroundWindow();
+
     [DllImport("user32.dll", SetLastError = true)]
     private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
 
@@ -34,6 +37,30 @@ internal static class PopupWindowNative
     [DllImport("shcore.dll")]
     private static extern int GetDpiForMonitor(IntPtr hMonitor, int dpiType, out uint dpiX, out uint dpiY);
 
+    [DllImport("user32.dll")]
+    private static extern IntPtr MonitorFromWindow(IntPtr hWnd, uint dwFlags);
+
+    [DllImport("user32.dll")]
+    private static extern bool GetMonitorInfo(IntPtr hMonitor, ref MonitorInfo lpmi);
+
+    [StructLayout(LayoutKind.Sequential)]
+    internal struct Rect
+    {
+        public int Left;
+        public int Top;
+        public int Right;
+        public int Bottom;
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    private struct MonitorInfo
+    {
+        public int cbSize;
+        public Rect rcMonitor;
+        public Rect rcWork;
+        public uint dwFlags;
+    }
+
     private const int GWL_EXSTYLE = -20;
     // Окно не забирает фокус у активного приложения
     private const int WS_EX_NOACTIVATE = 0x08000000;
@@ -75,9 +102,28 @@ internal static class PopupWindowNative
     }
 
     /// <summary>Масштаб монитора, на котором находится точка (1.0 при 96 DPI).</summary>
-    internal static double GetScaleAt(Point point)
+    internal static double GetScaleAt(Point point) =>
+        GetScaleOf(MonitorFromPoint(point, MONITOR_DEFAULTTONEAREST));
+
+    /// <summary>
+    /// Рабочая область монитора с активным окном — без панели задач — и его масштаб.
+    /// Именно на этом мониторе пользователь сейчас работает.
+    /// </summary>
+    internal static (Rect WorkArea, double Scale) GetActiveMonitorWorkArea()
+    {
+        IntPtr monitor = MonitorFromWindow(GetForegroundWindow(), MONITOR_DEFAULTTONEAREST);
+
+        var info = new MonitorInfo { cbSize = Marshal.SizeOf<MonitorInfo>() };
+        if (!GetMonitorInfo(monitor, ref info))
+        {
+            return (new Rect(), 1.0);
+        }
+
+        return (info.rcWork, GetScaleOf(monitor));
+    }
+
+    private static double GetScaleOf(IntPtr monitor)
     {
-        IntPtr monitor = MonitorFromPoint(point, MONITOR_DEFAULTTONEAREST);
         if (GetDpiForMonitor(monitor, MDT_EFFECTIVE_DPI, out uint dpiX, out _) < 0)
         {
             return 1.0;