init

2021-02-05 01:39:51 +00:00
parent 666067a36c
commit 45a9eb9cd2
73 changed files with 2669 additions and 0 deletions
@@ -0,0 +1,31 @@
+using Microsoft.Windows.Sdk;
+using System;
+using System.Drawing;
+using System.Windows;
+using System.Windows.Media;
+
+namespace NotificationFlyout.Wpf.UI.Extensions
+{
+    public static class ImageSourceExtensions
+    {
+        public static Icon ConvertToIcon(this ImageSource imageSource, uint dpi)
+        {
+            if (imageSource == null) return null;
+
+            var uri = new Uri(imageSource.ToString(), UriKind.RelativeOrAbsolute);
+
+            var streamResource = Application.GetResourceStream(uri);
+            if (streamResource == null) throw new ArgumentException(nameof(streamResource));
+
+            return new Icon(streamResource.Stream, new System.Drawing.Size(PInvoke.GetSystemMetricsForDpi((int)SystemMetricFlag.SM_CXICON, dpi), PInvoke.GetSystemMetricsForDpi((int)SystemMetricFlag.SM_CYICON, dpi)));
+        }
+
+        private enum SystemMetricFlag : int
+        {
+            SM_CXICON = 11,
+            SM_CYICON = 12,
+            SM_CXSMICON = 49,
+            SM_CYSMICON = 50
+        }
+    }
+}
@@ -0,0 +1,13 @@
+using NotificationFlyout.Wpf.UI.Helpers;
+using System;
+
+namespace NotificationFlyout.Wpf.UI.Extensions
+{
+    public static class OperatingSystemExtensions
+    {
+        public static bool IsGreaterThan(this OperatingSystem operatingSystem, OperatingSystemVersion version)
+        {
+            return operatingSystem.Version.Build > (int)version;
+        }
+    }
+}
@@ -0,0 +1,14 @@
+namespace NotificationFlyout.Wpf.UI.Helpers
+{
+    public enum OperatingSystemVersion : int
+    {
+        Windows10 = 10240,
+        Windows10_1511 = 10586,
+        Windows10_1607 = 14393,
+        Windows10_1703 = 15063,
+        Windows10_1709 = 16299,
+        Windows10_1803 = 17134,
+        Windows10_1809 = 17763,
+        Windows10_1903 = 18362
+    }
+}
@@ -0,0 +1,15 @@
+using Microsoft.Windows.Sdk;
+using System.Windows;
+
+namespace NotificationFlyout.Wpf.UI.Extensions
+{
+    internal static class RECTExtensions
+    {
+        internal static Rect ToRect(this RECT rect)
+        {
+            if (rect.right - rect.left < 0 || rect.bottom - rect.top < 0) return new Rect(rect.left, rect.top, 0, 0);
+
+            return new Rect(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
+        }
+    }
+}
@@ -0,0 +1,12 @@
+using Microsoft.Win32;
+
+namespace NotificationFlyout.Wpf.UI.Extensions
+{
+    public static class RegistryKeyExtensions
+    {
+        public static T GetValue<T>(this RegistryKey self, string valueName, T defaultValue)
+        {
+            return self.GetValue(valueName, defaultValue) is T t ? t : defaultValue;
+        }
+    }
+}
@@ -0,0 +1,39 @@
+using System.Windows;
+using System.Windows.Media;
+
+namespace NotificationFlyout.Wpf.UI.Extensions
+{
+    public static class VisualExtensions
+    {
+        private static Matrix GetDpi(this Visual visual)
+        {
+            var source = PresentationSource.FromVisual(visual);
+            if (source?.CompositionTarget != null) return (Matrix)source?.CompositionTarget.TransformToDevice;
+
+            return default;
+        }
+
+        public static double DpiY(this Visual visual)
+        {
+            return GetDpi(visual).M22;
+        }
+
+        public static double DpiX(this Visual visual)
+        {
+            return GetDpi(visual).M11;
+        }
+
+        public static bool TryGetTransformToDevice(this Visual visual, out Matrix value)
+        {
+            var presentationSource = PresentationSource.FromVisual(visual);
+            if (presentationSource != null)
+            {
+                value = presentationSource.CompositionTarget.TransformToDevice;
+                return true;
+            }
+
+            value = default;
+            return false;
+        }
+    }
+}
@@ -0,0 +1,37 @@
+using Microsoft.Windows.Sdk;
+using System;
+using System.Windows;
+using System.Windows.Interop;
+
+namespace NotificationFlyout.Wpf.UI.Extensions
+{
+    public static class WindowExtensions
+    {
+        [Flags]
+        private enum WindowFlag : uint
+        {
+            SWP_NOSIZE = 0x0001,
+            SWP_NOMOVE = 0x0002,
+            SWP_NOZORDER = 0x0004,
+            SWP_NOACTIVATE = 0x0010,
+            WS_EX_NOACTIVATE = 0x08000000,
+            SWP_SHOWWINDOW = 0x0040
+        }
+
+        public static void SetWindowPosition(this Window window, double top, double left, double height, double width)
+        {
+            PInvoke.SetWindowPos((HWND)window.GetHandle(), (HWND)IntPtr.Zero, (int)left, (int)top, (int)width, (int)height, (uint)WindowFlag.SWP_NOSIZE | (uint)WindowFlag.SWP_NOZORDER | (uint)WindowFlag.SWP_NOACTIVATE);
+        }
+
+        public static void SetTopAll(this Window window)
+        {
+            PInvoke.SetWindowPos((HWND)window.GetHandle(), (HWND)new IntPtr(-1), 0, 0, 0, 0, (uint)WindowFlag.SWP_NOMOVE | (uint)WindowFlag.SWP_NOSIZE | (uint)WindowFlag.WS_EX_NOACTIVATE);
+        }
+
+        public static IntPtr GetHandle(this Window window)
+        {
+            var helper = new WindowInteropHelper(window);
+            return helper.Handle;
+        }
+    }
+}
@@ -0,0 +1,209 @@
+using Microsoft.Windows.Sdk;
+using NotificationFlyout.Wpf.UI.Extensions;
+using System;
+using System.Runtime.InteropServices;
+using System.Windows;
+using System.Windows.Input;
+using System.Windows.Interop;
+
+namespace NotificationFlyout.Wpf.UI.Helpers
+{
+    public class NotificationIconHelper : IDisposable
+    {
+        private const int CallbackMessage = 0x400;
+        private const uint IconVersion = 0x4;
+
+        private const int WM_LBUTTONUP = 0x0202;
+        private const int WM_MBUTTONUP = 0x0208;
+        private const int WM_RBUTTONUP = 0x0205;
+        private readonly object _lock = new();
+        private readonly IntPtr _windowHandle;
+        private bool _isDisposed;
+        private NotifyIconData _notifyIconData;
+
+        private NotificationIconHelper(Window window)
+        {
+            _windowHandle = window.GetHandle();
+
+            var source = HwndSource.FromHwnd(_windowHandle);
+            source.AddHook(new HwndSourceHook(WndProc));
+
+            CreateNotificationIcon();
+        }
+
+
+        ~NotificationIconHelper()
+        {
+            Dispose(false);
+        }
+
+        public event EventHandler<NotificationIconInvokedEventArgs> IconInvoked;
+
+        private enum NotifyIconBalloonType
+        {
+            None = 0x00,
+            Info = 0x01,
+            Warning = 0x02,
+            Error = 0x03,
+            User = 0x04,
+            NoSound = 0x10,
+            LargeIcon = 0x20,
+            RespectQuietTime = 0x80
+        }
+
+        private enum NotifyIconCommand : uint
+        {
+            Add = 0x0,
+            Delete = 0x2,
+            Modify = 0x1,
+            SetVersion = 0x4
+        }
+
+        [Flags]
+        private enum NotifyIconDataMember : uint
+        {
+            Message = 0x01,
+            Icon = 0x02,
+            Tip = 0x04,
+            State = 0x08,
+            Info = 0x10,
+            Realtime = 0x40,
+            UseLegacyToolTips = 0x80
+        }
+
+        private enum NotifyIconState : uint
+        {
+            Visible = 0x00,
+            Hidden = 0x01
+        }
+
+        public static NotificationIconHelper Create(Window window)
+        {
+            return new NotificationIconHelper(window);
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+
+        public void SetIcon(IntPtr iconHandle)
+        {
+            lock (_lock)
+            {
+                _notifyIconData.IconHandle = iconHandle;
+                WriteNotifyIconData(NotifyIconCommand.Modify, NotifyIconDataMember.Icon);
+            }
+        }
+
+        [DllImport("shell32.dll", SetLastError = true)]
+        private static extern int Shell_NotifyIcon(NotifyIconCommand notifyCommand, ref NotifyIconData notifyIconData);
+
+        private void CreateNotificationIcon()
+        {
+            lock (_lock)
+            {
+                _notifyIconData = new NotifyIconData();
+
+                _notifyIconData.cbSize = (uint)Marshal.SizeOf(_notifyIconData);
+                _notifyIconData.WindowHandle = _windowHandle;
+                _notifyIconData.TaskbarIconId = 0x0;
+                _notifyIconData.CallbackMessageId = CallbackMessage;
+                _notifyIconData.VersionOrTimeout = IconVersion;
+
+                _notifyIconData.IconHandle = IntPtr.Zero;
+
+                _notifyIconData.IconState = NotifyIconState.Hidden;
+                _notifyIconData.StateMask = NotifyIconState.Hidden;
+
+                WriteNotifyIconData(NotifyIconCommand.Add, NotifyIconDataMember.Message | NotifyIconDataMember.Icon | NotifyIconDataMember.Tip);
+            }
+        }
+
+        private void Dispose(bool disposing)
+        {
+            if (_isDisposed || !disposing) return;
+
+            lock (_lock)
+            {
+                _isDisposed = true;
+                RemoveNotificationIcon();
+            }
+        }
+
+        private void RemoveNotificationIcon() => WriteNotifyIconData(NotifyIconCommand.Delete, NotifyIconDataMember.Message);
+
+        private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
+        {
+            if (msg == CallbackMessage)
+            {
+                var mouseButton = MouseButton.Left;
+                var isInvoked = false;
+
+                switch ((uint)lParam)
+                {
+                    case WM_LBUTTONUP:
+                        isInvoked = true;
+                        mouseButton = MouseButton.Left;
+                        break;
+
+                    case WM_MBUTTONUP:
+                        isInvoked = true;
+                        mouseButton = MouseButton.Middle;
+                        break;
+
+                    case WM_RBUTTONUP:
+                        isInvoked = true;
+                        mouseButton = MouseButton.Right;
+                        break;
+                }
+
+                if (isInvoked)
+                {
+                    IconInvoked?.Invoke(this, new NotificationIconInvokedEventArgs { MouseButton = mouseButton });
+                }
+            }
+ 
+            return (IntPtr)(int)PInvoke.DefWindowProc((HWND)hwnd, (uint)msg, (WPARAM)(UIntPtr)(uint)wParam, (LPARAM)lParam);
+        }
+
+        private void WriteNotifyIconData(NotifyIconCommand command, NotifyIconDataMember flags)
+        {
+            _notifyIconData.ValidMembers = flags;
+            lock (_lock)
+            {
+                Shell_NotifyIcon(command, ref _notifyIconData);
+            }
+        }
+
+        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+        private struct NotifyIconData
+        {
+            public uint cbSize;
+            public IntPtr WindowHandle;
+            public uint TaskbarIconId;
+            public NotifyIconDataMember ValidMembers;
+            public uint CallbackMessageId;
+            public IntPtr IconHandle;
+
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
+            public string ToolTipText;
+
+            public NotifyIconState IconState;
+            public NotifyIconState StateMask;
+
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
+            public string BalloonText;
+
+            public uint VersionOrTimeout;
+
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 64)]
+            public string BalloonTitle;
+
+            public NotifyIconBalloonType BalloonFlags;
+            public Guid TaskbarIconGuid;
+            public IntPtr CustomBalloonIconHandle;
+        }
+    }
+}
@@ -0,0 +1,10 @@
+using System;
+using System.Windows.Input;
+
+namespace NotificationFlyout.Wpf.UI.Helpers
+{
+    public class NotificationIconInvokedEventArgs : EventArgs
+    {
+        public MouseButton MouseButton { get; internal set; }
+    }
+}
@@ -0,0 +1,47 @@
+using Microsoft.Windows.Sdk;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using System.Windows;
+
+namespace NotificationFlyout.Wpf.UI.Helpers
+{
+    public static class SystemInformationHelper
+    {
+        private const int SM_CXSCREEN = 0;
+
+        private const int SM_CYSCREEN = 1;
+
+        private const int SPI_GETWORKAREA = 48;
+
+        public static Rect VirtualScreen => GetVirtualScreen();
+
+        public static Rect WorkingArea => GetWorkingArea();
+
+        public static int GetCurrentDpi()
+        {
+            return (int)typeof(SystemParameters).GetProperty("Dpi", BindingFlags.Static | BindingFlags.NonPublic).GetValue(null, null);
+        }
+
+        public static double GetCurrentDpiScaleFactor()
+        {
+            return (double)GetCurrentDpi() / 96;
+        }
+
+        private static Rect GetVirtualScreen()
+        {
+            var size = new Size(PInvoke.GetSystemMetrics(SM_CXSCREEN), PInvoke.GetSystemMetrics(SM_CYSCREEN));
+            return new Rect(0, 0, size.Width, size.Height);
+        }
+
+        private static Rect GetWorkingArea()
+        {
+            var rect = new RECT();
+
+            SystemParametersInfo(SPI_GETWORKAREA, 0, ref rect, 0);
+            return new Rect(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
+        }
+
+        [DllImport("user32.dll", CharSet = CharSet.Auto)]
+        private static extern bool SystemParametersInfo(int nAction, int nParam, ref RECT rc, int nUpdate);
+    }
+}
@@ -0,0 +1,30 @@
+using Microsoft.Win32;
+using NotificationFlyout.Wpf.UI.Extensions;
+using System;
+
+namespace NotificationFlyout.Wpf.UI.Helpers
+{
+    public static class SystemSettingsHelper
+    {
+        private static readonly string PersonalizeKey = @"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize";
+
+        public static SystemTheme DefaultSystemTheme => GetDefaultSystemTheme();
+
+        private static SystemTheme GetDefaultSystemTheme()
+        {
+            return Environment.OSVersion.IsGreaterThan(OperatingSystemVersion.Windows10_1809) &&
+                   ReadDword(PersonalizeKey, "SystemUsesLightTheme")
+                ? SystemTheme.Light
+                : SystemTheme.Dark;
+        }
+
+        private static bool ReadDword(string key, string valueName, int defaultValue = 0)
+        {
+            using var baseKey = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64);
+            using var subKey = baseKey.OpenSubKey(key);
+            return subKey.GetValue<int>(valueName, defaultValue) > 0;
+        }
+
+        public static bool IsTransparencyEnabled => ReadDword(PersonalizeKey, "EnableTransparency");
+    }
+}
@@ -0,0 +1,8 @@
+namespace NotificationFlyout.Wpf.UI.Helpers
+{
+    public enum SystemTheme
+    {
+        Dark,
+        Light
+    }
+}
@@ -0,0 +1,118 @@
+using Microsoft.Windows.Sdk;
+using NotificationFlyout.Wpf.UI.Extensions;
+using System;
+using System.Runtime.InteropServices;
+using System.Windows;
+using System.Windows.Interop;
+
+namespace NotificationFlyout.Wpf.UI.Helpers
+{
+    public class TaskbarHelper
+    {
+        private const string ShellTrayHandleName = "Shell_TrayWnd";
+
+        private const int SPI_SETWORKAREA = 0x002F;
+
+        private const int WSETTINGCHANGE = 0x001A;
+
+        private static readonly uint WTASKBARCREATED = PInvoke.RegisterWindowMessage("TaskbarCreated");
+
+        private TaskbarHelper(Window window)
+        {
+            var handle = window.GetHandle();
+
+            var source = HwndSource.FromHwnd(handle);
+            source.AddHook(new HwndSourceHook(WndProc));
+        }
+
+        public event EventHandler TaskbarChanged;
+
+        private enum AppBarEdge : uint
+        {
+            Left = 0,
+            Top = 1,
+            Right = 2,
+            Bottom = 3
+        }
+
+        private enum AppBarMessage : uint
+        {
+            New = 0x00000000,
+            Remove = 0x00000001,
+            QueryPos = 0x00000002,
+            SetPos = 0x00000003,
+            GetState = 0x00000004,
+            GetTaskbarPos = 0x00000005,
+            Activate = 0x00000006,
+            GetAutoHideBar = 0x00000007,
+            SetAutoHideBar = 0x00000008,
+            WindowPosChanged = 0x00000009,
+            SetState = 0x0000000A,
+        }
+
+        public static TaskbarHelper Create(Window window)
+        {
+            return new TaskbarHelper(window);
+        }
+
+        public TaskbarState GetCurrentState()
+        {
+            var handle = GetSystemTrayHandle();
+            var state = new TaskbarState
+            {
+                Screen = Screen.FromHandle(handle)
+            };
+
+            var appBarData = GetAppBarData(handle);
+            GetAppBarPosition(ref appBarData);
+
+            state.Rect = appBarData.rect.ToRect();
+            state.Position = (TaskbarPosition)appBarData.uEdge;
+
+            return state;
+        }
+
+        private static IntPtr GetSystemTrayHandle()
+        {
+            return WindowHelper.GetHandle(ShellTrayHandleName);
+        }
+
+        private AppBarData GetAppBarData(IntPtr handle)
+        {
+            return new AppBarData
+            {
+                cbSize = (uint)Marshal.SizeOf(typeof(AppBarData)),
+                hWnd = handle
+            };
+        }
+
+        [StructLayout(LayoutKind.Sequential)]
+        private struct AppBarData
+        {
+            public uint cbSize;
+            public IntPtr hWnd;
+            public uint uCallbackMessage;
+            public AppBarEdge uEdge;
+            public RECT rect;
+            public int lParam;
+        }
+
+        [DllImport("shell32.dll", SetLastError = true)]
+        private static extern IntPtr SHAppBarMessage(AppBarMessage dwMessage, ref AppBarData pData);
+
+        private void GetAppBarPosition(ref AppBarData appBarData)
+        {
+            SHAppBarMessage(AppBarMessage.GetTaskbarPos, ref appBarData);
+        }
+
+        private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
+        {
+            if (msg == WTASKBARCREATED || msg == WSETTINGCHANGE && (int)wParam == SPI_SETWORKAREA)
+            {
+                TaskbarChanged?.Invoke(this, EventArgs.Empty);
+            }
+
+            return (IntPtr)(int)PInvoke.DefWindowProc((HWND)hwnd, (uint)msg, (WPARAM)(UIntPtr)(uint)wParam, (LPARAM)lParam);
+        }
+    }
+}
@@ -0,0 +1,11 @@
+namespace NotificationFlyout.Wpf.UI
+{
+
+    public enum TaskbarPosition
+    {
+        Left = 0,
+        Top = 1,
+        Right = 2,
+        Bottom = 3
+    }
+}
@@ -0,0 +1,11 @@
+using System.Windows;
+
+namespace NotificationFlyout.Wpf.UI
+{
+    public struct TaskbarState
+    {
+        public TaskbarPosition Position;
+        public Rect Rect;
+        public Screen Screen;
+    }
+}
@@ -0,0 +1,18 @@
+using Microsoft.Windows.Sdk;
+using System;
+
+namespace NotificationFlyout.Wpf.UI.Helpers
+{
+    public class WindowHelper
+    {
+        public static IntPtr GetHandle(string windowName)
+        {
+            return PInvoke.FindWindow(windowName, null);
+        }
+
+        public static uint GetDpi(IntPtr handle)
+        {
+            return PInvoke.GetDpiForWindow((HWND)handle);
+        }
+    }
+}
@@ -0,0 +1,11 @@
+Shell_NotifyIcon
+GetDpiForWindow
+FindWindow
+GetSystemMetricsForDpi
+DefWindowProcW
+GetSystemMetrics
+MonitorFromWindow
+RegisterWindowMessage
+FindWindow
+SHAppBarMessage
+SetWindowPos
@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <UseWPF>true</UseWPF>
+    <LangVersion>9.0</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Windows.CsWin32" Version="0.1.319-beta">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="System.Drawing.Common" Version="5.0.0" />
+  </ItemGroup>
+
+</Project>
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
@@ -0,0 +1,114 @@
+using Microsoft.Windows.Sdk;
+using NotificationFlyout.Wpf.UI.Helpers;
+using System;
+using System.Runtime.InteropServices;
+using System.Windows;
+
+namespace NotificationFlyout.Wpf.UI
+{
+    public class Screen
+    {
+        private const int CCHDEVICENAME = 32;
+        private const int PRIMARY_MONITOR = unchecked((int)0xBAADF00D);
+        private const int SM_CMONITORS = 80;
+        private static readonly bool _multiMonitorSupport;
+
+        private readonly IntPtr _monitorHandle;
+
+        static Screen()
+        {
+            _multiMonitorSupport = PInvoke.GetSystemMetrics(SM_CMONITORS) != 0;
+        }
+
+        internal Screen(IntPtr monitorHandle)
+        {
+            if (!_multiMonitorSupport || monitorHandle == (IntPtr)PRIMARY_MONITOR)
+            {
+                Bounds = SystemInformationHelper.VirtualScreen;
+                Primary = true;
+                DeviceName = "DISPLAY";
+            }
+            else
+            {
+                var monitorData = GetMonitorData(monitorHandle);
+
+                Bounds = new Rect(monitorData.MonitorRect.left, monitorData.MonitorRect.top, monitorData.MonitorRect.right - monitorData.MonitorRect.left,  monitorData.MonitorRect.bottom - monitorData.MonitorRect.top);
+                Primary = (monitorData.Flags & (int)MonitorFlag.MONITOR_DEFAULTTOPRIMARY) != 0;
+                DeviceName = monitorData.DeviceName;
+            }
+
+            _monitorHandle = monitorHandle;
+        }
+
+        private enum MonitorFlag : uint
+        {
+            MONITOR_DEFAULTTONULL = 0,
+            MONITOR_DEFAULTTOPRIMARY = 1,
+            MONITOR_DEFAULTTONEAREST = 2
+        }
+
+        public Rect Bounds { get; }
+
+        public string DeviceName { get; }
+
+        public bool Primary { get; }
+
+        public Rect WorkingArea => GetWorkingArea();
+
+        public static Screen FromHandle(IntPtr handle)
+        {
+            return _multiMonitorSupport ? new Screen(PInvoke.MonitorFromWindow((HWND)handle, (uint)MonitorFlag.MONITOR_DEFAULTTONEAREST)) : new Screen((IntPtr)PRIMARY_MONITOR);
+        }
+
+        public override bool Equals(object obj)
+        {
+            if (obj is Screen monitor)
+            {
+                if (_monitorHandle == monitor._monitorHandle)
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        public override int GetHashCode()
+        {
+            return (int)_monitorHandle;
+        }
+
+        [DllImport("user32.dll", EntryPoint = "GetMonitorInfo", CharSet = CharSet.Auto, SetLastError = true)]
+        private static extern bool GetMonitorInfoEx(IntPtr hMonitor, ref MonitorData lpmi);
+
+        private MonitorData GetMonitorData(IntPtr monitorHandle)
+        {
+            var monitorData = new MonitorData();
+            monitorData.Size = Marshal.SizeOf(monitorData);
+            GetMonitorInfoEx(monitorHandle, ref monitorData);
+
+            return monitorData;
+        }
+        private Rect GetWorkingArea()
+        {
+            if (!_multiMonitorSupport || _monitorHandle == (IntPtr)PRIMARY_MONITOR)
+            {
+                return SystemInformationHelper.WorkingArea;
+            }
+
+            var monitorData = GetMonitorData(_monitorHandle);
+            return new Rect(monitorData.WorkAreaRect.left, monitorData.WorkAreaRect.top, monitorData.WorkAreaRect.right - monitorData.WorkAreaRect.left, monitorData.WorkAreaRect.bottom - monitorData.WorkAreaRect.top);
+        }
+
+        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
+        private struct MonitorData
+        {
+            public int Size;
+            public RECT MonitorRect;
+            public RECT WorkAreaRect;
+            public uint Flags;
+
+            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = CCHDEVICENAME)]
+            public string DeviceName;
+        }
+    }
+}