Add some WinUI work

Toolkit.Avalonia/ContentTemplate.cs

@@ -1,6 +1,5 @@
 using Avalonia.Controls;
 using Avalonia.Controls.Templates;
-using Avalonia.Data;
 using Avalonia.Interactivity;
 using Microsoft.Extensions.DependencyInjection;
 using Toolkit.Foundation;

Toolkit.Foundation/AsyncHandlerInitialization.cs

@@ -7,14 +7,14 @@ public class AsyncHandlerInitialization<TMessage, TResponse, THandler>(IServiceP
     IInitialization where THandler : class, IAsyncHandler<TMessage, TResponse>
         where TMessage : class
 {
-    public void Initialize() => WeakReferenceMessenger.Default.Register<IServiceProvider, AsyncResponseEventArgs<TMessage, TResponse>>(provider,
-        async (provider, args) => args.Reply(await provider.GetRequiredService<THandler>().Handle(args.Message, args.CancellationToken)));
+    public void Initialize() => StrongReferenceMessenger.Default.Register<IServiceProvider, AsyncResponseEventArgs<TMessage, TResponse>>(provider,
+         (provider, args) => args.Reply(provider.GetRequiredService<THandler>().Handle(args.Message, args.CancellationToken)));
 }
 
 public class AsyncHandlerInitialization<TMessage, THandler>(IServiceProvider provider) :
     IInitialization where THandler : class, IAsyncHandler<TMessage>
         where TMessage : class
 {
-    public void Initialize() => WeakReferenceMessenger.Default.Register<IServiceProvider, AsyncResponseEventArgs<TMessage, Unit>>(provider,
-        async (provider, args) => await provider.GetRequiredService<THandler>().Handle(args.Message, args.CancellationToken));
+    public void Initialize() => StrongReferenceMessenger.Default.Register<IServiceProvider, AsyncResponseEventArgs<TMessage, Unit>>(provider,
+         (provider, args) => provider.GetRequiredService<THandler>().Handle(args.Message, args.CancellationToken));
 }

Toolkit.Foundation/AsyncResponseEventArgs.cs

@@ -5,7 +5,7 @@ namespace Toolkit.Foundation;
 public class AsyncResponseEventArgs<TMessage, TResponse> :
     AsyncRequestMessage<TResponse>
 {
-    public TMessage? Message { get; set; }
+    public required TMessage Message { get; set; }
 
     public CancellationToken CancellationToken { get; set; }
 }

Toolkit.Foundation/DefaultHostBuilder.cs

@@ -20,14 +20,8 @@ public class DefaultHostBuilder :
                     ComponentHostCollection>();
 
                 services.AddSingleton<IDisposer, Disposer>();
-                services.AddSingleton<IMessenger, WeakReferenceMessenger>(_ => WeakReferenceMessenger.Default);
+                services.AddSingleton<IMessenger, StrongReferenceMessenger>(_ => StrongReferenceMessenger.Default);
 
-                //services.AddScoped<SubscriptionCollection>();
-
-                //services.AddTransient<IHandlerProvider, HandlerProvider>();
-                //services.AddScoped<ISubscriber, Subscriber>();
-                //services.AddTransient<IPublisher, Publisher>();
-                //services.AddTransient<IMediator, Mediator>();
 
                 services.AddTransient<IValidation, Validation>();
                 services.AddTransient<IValidatorCollection, ValidatorCollection>();
@@ -57,10 +51,10 @@ public class DefaultHostBuilder :
                 services.AddTransient<IComponentFactory, ComponentFactory>();
                 services.AddTransient<IComponentScopeProvider, ComponentScopeProvider>();
 
-                //services.AddHandler<NavigateHandler>();
-                //services.AddHandler<NavigateBackHandler>();
+                services.AddHandler<NavigateEventArgs, NavigateHandler>();
+                services.AddHandler<NavigateBackEventArgs, NavigateBackHandler>();
 
-                //services.AddInitialization<ComponentInitializer>();
+                services.AddInitialization<ComponentInitializer>();
                 services.AddHostedService<AppService>();
             });
     }

Toolkit.Foundation/HandlerInitialization.cs

@@ -7,7 +7,7 @@ public class HandlerInitialization<TMessage, TResponse, THandler>(IServiceProvid
     IInitialization where THandler : class, IHandler<TMessage, TResponse>
         where TMessage : class
 {
-    public void Initialize() => WeakReferenceMessenger.Default.Register<IServiceProvider, ResponseEventArgs<TMessage, TResponse>>(provider,
+    public void Initialize() => StrongReferenceMessenger.Default.Register<IServiceProvider, ResponseEventArgs<TMessage, TResponse>>(provider,
             (provider, args) => args.Reply(provider.GetRequiredService<THandler>().Handle(args.Message)));
 }
 
@@ -15,7 +15,7 @@ public class HandlerInitialization<TMessage, THandler>(IServiceProvider provider
     IInitialization where THandler : class, IHandler<TMessage>
         where TMessage : class
 {
-    public void Initialize() => WeakReferenceMessenger.Default.Register<IServiceProvider, TMessage>(provider,
+    public void Initialize() => StrongReferenceMessenger.Default.Register<IServiceProvider, TMessage>(provider,
         (provider, args) => provider.GetRequiredService<THandler>().Handle(args));
 }
 
@@ -23,6 +23,6 @@ public class HandlerKeyedInitialization<TMessage, THandler>(string key, IService
     IInitialization where THandler : class, IHandler<TMessage>
         where TMessage : class
 {
-    public void Initialize() => WeakReferenceMessenger.Default.Register<IServiceProvider, TMessage, string>(provider, key,
+    public void Initialize() => StrongReferenceMessenger.Default.Register<IServiceProvider, TMessage, string>(provider, key,
         (provider, args) => provider.GetRequiredKeyedService<THandler>(key).Handle(args));
 }

Toolkit.Foundation/IMessengerExtensions.cs

@@ -11,9 +11,27 @@ public static class IMessengerExtensions
         return args.Response;
     }
 
-    public static void Send<TMessage>(this IMessenger messenger, string key)
-        where TMessage : class, new() => messenger.Send(new TMessage(), key);
+    public static TResponse Send<TMessage, TResponse>(this IMessenger messenger,
+        TMessage message)
+        where TMessage : class
+    {
+        ResponseEventArgs<TMessage, TResponse> args = messenger.Send(new ResponseEventArgs<TMessage, TResponse> { Message = message });
+        return args.Response;
+    }
+
+    public static void Send<TMessage>(this IMessenger messenger, 
+        TMessage message, string key) where TMessage : class =>
+            messenger.Send(message, key);
+
+    public static void Send<TMessage>(this IMessenger messenger,
+        string key) where TMessage : class, new() =>
+            messenger.Send(new TMessage(), key);
 
     public static async Task<TResponse> SendAsync<TMessage, TResponse>(this IMessenger messenger)
-        where TMessage : class, new() => await messenger.Send(new AsyncResponseEventArgs<TMessage, TResponse> { Message = new TMessage() });
+        where TMessage : class, new() => 
+            await messenger.Send(new AsyncResponseEventArgs<TMessage, TResponse> { Message = new TMessage() });
+
+    public static async Task<TResponse> SendAsync<TMessage, TResponse>(this IMessenger messenger,
+        TMessage message) where TMessage : class => 
+            await messenger.Send(new AsyncResponseEventArgs<TMessage, TResponse> { Message = message });
 }

Toolkit.UI.WinUI/NotifyIconExtensions.cs

@@ -0,0 +1,21 @@
+using System.Drawing;
+using System.IO;
+using Toolkit.Windows;
+using Toolkit.WinUI;
+
+namespace Toolkit.UI.WinUI;
+
+public static class NotifyIconExtensions
+{
+    public static void SetIcon(this INotifyIcon notifyIcon,
+        Stream? stream)
+    {
+        nint shellTrayHandle = WindowHelper.GetWindowHandle("Shell_TrayWnd");
+        uint dpi = WindowHelper.GetDpi(shellTrayHandle);
+
+        if (stream?.ConvertToIcon(dpi) is Icon icon)
+        {
+            notifyIcon.SetIcon(icon.Handle);
+        }
+    }
+}

Toolkit.UI.WinUI/Toolkit.UI.WinUI.csproj

@@ -23,5 +23,6 @@
 
 	<ItemGroup>
 	  <ProjectReference Include="..\Toolkit.Windows\Toolkit.Windows.csproj" />
+	  <ProjectReference Include="..\Toolkit.WinUI\Toolkit.WinUI.csproj" />
 	</ItemGroup>
 </Project>

Toolkit.UI.WinUI/WindowExtensions.cs

@@ -7,6 +7,9 @@ using Windows.Win32.Graphics.Gdi;
 using System.Drawing;
 using Windows.Win32.UI.Shell;
 using Windows.Win32.UI.WindowsAndMessaging;
+using Toolkit.Windows;
+using Rect = Windows.Foundation.Rect;
+using WinUIEx;
 
 namespace Toolkit.UI.WinUI;
 
@@ -14,16 +17,74 @@ public static partial class WindowExtensions
 {
     private static SUBCLASSPROC? SubClassDelegate;
 
+    public static void Hide(this Window window)
+    {
+        nint handle = WindowNative.GetWindowHandle(window);
+        if (handle == 0) return;
+
+        WindowHelper.HideWindow(new HWND(handle));
+    }
+
+    public static void IsShownInSwitchers(this Window window,
+        bool value)
+    {
+        if (window.AppWindow is AppWindow appWindow)
+        {
+            appWindow.IsShownInSwitchers = value;
+        }
+    }
+
+    public static void MoveAndResize(this Window window,
+        Rect rect)
+    {
+        nint handle = WindowNative.GetWindowHandle(window);
+        if (handle == 0) return;
+
+        WindowHelper.MoveAndResizeWindow(new HWND(handle),
+            (int)rect.Left,
+            (int)rect.Top,
+            (int)rect.Width,
+            (int)rect.Height);
+    }
+
     public static void SetBorderless(this Window window,
                 bool value)
+    {
+        WindowStyle windowStyle = window.GetWindowStyle();
+
+        if (value)
+        {
+            windowStyle &= ~(WindowStyle.Caption |
+                             WindowStyle.ThickFrame |
+                             WindowStyle.Border |
+                             WindowStyle.SysMenu);
+        }
+        else
+        {
+            windowStyle |= WindowStyle.Caption |
+                           WindowStyle.ThickFrame |
+                           WindowStyle.Border |
+                           WindowStyle.SysMenu;
+        }
+
+        window.SetWindowStyle(windowStyle);
+    }
+
+    public static void SetForeground(this Window window)
+    {
+        nint handle = WindowNative.GetWindowHandle(window);
+        if (handle == 0) return;
+
+        WindowHelper.SetForegroundWindow(new HWND(handle));
+    }
+
+    public static void SetTopMost(this Window window,
+            bool value)
     {
         if (window.AppWindow is AppWindow appWindow &&
             appWindow.Presenter is OverlappedPresenter presenter)
         {
-            presenter.IsMaximizable = !value;
-            presenter.IsMinimizable = !value;
-            presenter.IsResizable = !value;
-            presenter.SetBorderAndTitleBar(!value, !value);
+            presenter.IsAlwaysOnTop = value;
         }
     }
 
@@ -44,18 +105,12 @@ public static partial class WindowExtensions
         }
     }
 
-    private static unsafe void EnableTransparency(HWND hWnd)
+    public static void Show(this Window window)
     {
-        SubClassDelegate = new SUBCLASSPROC(WindowSubClass);
-        _ = PInvoke.SetWindowSubclass(hWnd, SubClassDelegate, 0, 0);
+        nint handle = WindowNative.GetWindowHandle(window);
+        if (handle == 0) return;
 
-        WINDOW_EX_STYLE exStyle = (WINDOW_EX_STYLE)PInvoke.GetWindowLong(hWnd, WINDOW_LONG_PTR_INDEX.GWL_EXSTYLE);
-        _ = PInvoke.SetWindowLong(hWnd, WINDOW_LONG_PTR_INDEX.GWL_EXSTYLE,
-            (int)(exStyle | WINDOW_EX_STYLE.WS_EX_LAYERED));
-
-        COLORREF blackColor = new COLORREF((uint)ToWin32(Color.Black));
-        _ = PInvoke.SetLayeredWindowAttributes(hWnd, blackColor, 0, LAYERED_WINDOW_ATTRIBUTES_FLAGS.LWA_COLORKEY | 
-            LAYERED_WINDOW_ATTRIBUTES_FLAGS.LWA_ALPHA);
+        WindowHelper.ShowWindow(new HWND(handle));
     }
 
     private static unsafe void DisableTransparency(HWND hWnd)
@@ -70,6 +125,20 @@ public static partial class WindowExtensions
         _ = PInvoke.SetWindowLong(hWnd, WINDOW_LONG_PTR_INDEX.GWL_EXSTYLE, (int)(exStyle & ~WINDOW_EX_STYLE.WS_EX_LAYERED));
     }
 
+    private static unsafe void EnableTransparency(HWND hWnd)
+    {
+        SubClassDelegate = new SUBCLASSPROC(WindowSubClass);
+        _ = PInvoke.SetWindowSubclass(hWnd, SubClassDelegate, 0, 0);
+
+        WINDOW_EX_STYLE exStyle = (WINDOW_EX_STYLE)PInvoke.GetWindowLong(hWnd, WINDOW_LONG_PTR_INDEX.GWL_EXSTYLE);
+        _ = PInvoke.SetWindowLong(hWnd, WINDOW_LONG_PTR_INDEX.GWL_EXSTYLE,
+            (int)(exStyle | WINDOW_EX_STYLE.WS_EX_LAYERED));
+
+        COLORREF blackColor = new COLORREF((uint)ToWin32(Color.Black));
+        _ = PInvoke.SetLayeredWindowAttributes(hWnd, blackColor, 0, LAYERED_WINDOW_ATTRIBUTES_FLAGS.LWA_COLORKEY | 
+            LAYERED_WINDOW_ATTRIBUTES_FLAGS.LWA_ALPHA);
+    }
+
     private static int ToWin32(Color c) => c.B << 16 | c.G << 8 | c.R;
 
     private static unsafe LRESULT WindowSubClass(HWND hWnd,

Toolkit.WinUI/ContentTemplate.cs

@@ -0,0 +1,45 @@
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Markup;
+using Toolkit.Foundation;
+
+namespace Toolkit.WinUI;
+
+public class ContentTemplate :
+    DataTemplateSelector,
+    IContentTemplate
+{
+    protected override DataTemplate? SelectTemplateCore(object item)
+    {
+        if (item is IObservableViewModel observableViewModel)
+        {
+            if (observableViewModel.Provider is IServiceProvider provider)
+            {
+                Type itemType = item.GetType();
+                if (provider.GetRequiredKeyedService<IContentTemplateDescriptor>(itemType.Name.Replace("ViewModel", ""))
+                    is IContentTemplateDescriptor descriptor)
+                {
+                    return CreateDataTemplate(descriptor);
+                }
+            }
+        }
+
+        return default;
+    }
+
+    protected override DataTemplate? SelectTemplateCore(object item,
+        DependencyObject container) => SelectTemplateCore(item);
+
+    private static DataTemplate CreateDataTemplate(IContentTemplateDescriptor descriptor)
+    {
+        string xamlString = @$"
+                <DataTemplate xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""
+                              xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml""
+                              xmlns:local=""using:Toolkit.WinUI"">
+                    <local:TemplateControl />
+                </DataTemplate>";
+
+        return (DataTemplate)XamlReader.Load(xamlString);
+    }
+}

Toolkit.WinUI/IServiceCollectionExtensions.cs

@@ -11,6 +11,8 @@ public static class IServiceCollectionExtensions
         services.AddTransient<IDispatcherTimerFactory, DispatcherTimerFactory>();
         services.AddSingleton<IWindowRegistry, WindowRegistry>();
 
+        services.AddTransient<IContentTemplate, ContentTemplate>();
+
         services.AddTransient((Func<IServiceProvider, IProxyServiceCollection<IComponentBuilder>>)(provider =>
             new ProxyServiceCollection<IComponentBuilder>(services =>
             {

Toolkit.WinUI/TemplateControl.cs

@@ -0,0 +1,79 @@
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Data;
+using Toolkit.Foundation;
+
+namespace Toolkit.WinUI;
+
+[Bindable]
+public class TemplateControl :
+    ContentControl
+{
+    public TemplateControl()
+    {
+        DefaultStyleKey = typeof(TemplateControl);
+        Loaded += OnLoaded;
+    }
+
+    private void OnLoaded(object sender,
+        RoutedEventArgs args)
+    {
+        Loaded -= OnLoaded;
+
+        if (DataContext is IObservableViewModel observableViewModel)
+        {
+            if (observableViewModel.Provider is IServiceProvider provider)
+            {
+                if (provider.GetRequiredKeyedService<IContentTemplateDescriptor>(DataContext.GetType().Name.Replace("ViewModel", ""))
+                    is IContentTemplateDescriptor descriptor)
+                {
+                    if (provider.GetRequiredKeyedService(descriptor.TemplateType, descriptor.Key)
+                        is FrameworkElement control)
+                    {
+                        void HandleLoaded(object? sender, RoutedEventArgs args)
+                        {
+                            control.Loaded -= HandleLoaded;
+                            if (control.DataContext is object content)
+                            {
+                                if (content is IActivation activation)
+                                {
+                                    activation.IsActive = true;
+                                }
+                            }
+                        }
+
+                        void HandleDataContextChanged(FrameworkElement? sender, DataContextChangedEventArgs args)
+                        {
+                            if (control.DataContext is object content)
+                            {
+                                if (content is IActivation activation)
+                                {
+                                    activation.IsActive = true;
+                                }
+                            }
+                        }
+
+                        void HandleUnloaded(object? sender, RoutedEventArgs args)
+                        {
+                            control.Unloaded -= HandleUnloaded;
+                            if (control.DataContext is object content)
+                            {
+                                if (content is IActivation activation)
+                                {
+                                    activation.IsActive = false;
+                                }
+                            }
+                        }
+
+                        control.Loaded += HandleLoaded;
+                        control.Unloaded += HandleUnloaded;
+                        control.DataContextChanged += HandleDataContextChanged;
+
+                        Content = control;
+                    }
+                }
+            }
+        }
+    }
+}

Toolkit.WinUI/Toolkit.WinUI.csproj

@@ -22,7 +22,6 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<ProjectReference Include="..\Toolkit.Foundation\Toolkit.Foundation.csproj" />
 		<ProjectReference Include="..\Toolkit.Windows\Toolkit.Windows.csproj" />
 	</ItemGroup>
 

Toolkit.Windows/IPointer.cs

@@ -2,6 +2,6 @@
 
 namespace Toolkit.Windows;
 
-public interface IPointerMonitor :
+public interface IPointer :
     IInitialization, 
     IDisposable;

Toolkit.Windows/NativeMethods.txt

@@ -1,41 +1,51 @@
-SetWindowsHookEx
-GetModuleHandle
-CallNextHookEx
-GetPhysicalCursorPos
-FindWindowEx
-FindWindow
-GetWindowRect
-DestroyWindow
-DefWindowProcW
+CallNextHookEx
+CreateSolidBrush
 CreateWindowExW
-RegisterClassW
-GetSystemMetrics
-MonitorFromWindow
-RegisterWindowMessage
-GetDpiForWindow
-SetWindowPos
-SHCreateShellItemArrayFromDataObject
-Shell_NotifyIcon
-GetSystemMetricsForDpi
-GetSystemMetrics
+DWM_WINDOW_CORNER_PREFERENCE
+DefSubclassProc
+DefWindowProcW
+DeleteObject
+DestroyWindow
+DwmSetWindowAttribute
+FillRect
+FindWindow
+FindWindowEx
+GetClientRect
 GetCurrentProcess
-SetProcessInformation
-PROCESS_POWER_THROTTLING_STATE
+GetDpiForWindow
+GetPhysicalCursorPos
+GetSystemMetrics
+GetSystemMetricsForDpi
+GetWindowLong
+GetWindowRect
+MonitorFromWindow
 PROCESS_POWER_THROTTLING_CURRENT_VERSION
 PROCESS_POWER_THROTTLING_EXECUTION_SPEED
-SetPriorityClass
-WINDOW_STYLE
-DefSubclassProc
-SetLayeredWindowAttributes
-WM_ERASEBKGND
-SetWindowSubclass
-GetClientRect
-CreateSolidBrush
-DwmSetWindowAttribute
-DWM_WINDOW_CORNER_PREFERENCE
-FillRect
-SetLayeredWindowAttributes
-DeleteObject
+PROCESS_POWER_THROTTLING_STATE
+RegisterClassW
+RegisterWindowMessage
 RemoveWindowSubclass
-GetWindowLong
+SHCreateShellItemArrayFromDataObject
+SetLayeredWindowAttributes
+SetPriorityClass
+SetProcessInformation
 SetWindowLong
+SetWindowPos
+SetWindowSubclass
+SetWindowsHookEx
+Shell_NotifyIcon
+WINDOW_STYLE
+WM_ERASEBKGND
+SetForegroundWindow
+ShowWindow
+GetCursorPos
+UnregisterClass
+CreateWindowEx
+RegisterClass
+DefWindowProc
+GetMessage
+TranslateMessage
+DispatchMessage
+PostQuitMessage
+DestroyWindow
+GetModuleHandle

Toolkit.Windows/NotifyIcon.cs

@@ -1,11 +1,12 @@
 using CommunityToolkit.Mvvm.Messaging;
+using System.Drawing;
 using System.Runtime.InteropServices;
 using Toolkit.Foundation;
+using Windows.Win32;
 
 namespace Toolkit.Windows;
 
-
-public partial class NotifyIcon(IWndProc wndProc,
+public class NotifyIcon(IWndProc wndProc,
     IMessenger messenger) :
     INotifyIcon,
     IRecipient<WndProcEventArgs>
@@ -17,11 +18,6 @@ public partial class NotifyIcon(IWndProc wndProc,
     private bool isDisposed;
     private NotifyIconData notifyIconData;
 
-    ~NotifyIcon()
-    {
-        Dispose(false);
-    }
-
     private enum NotifyIconBalloonType
     {
         None = 0x00,
@@ -66,6 +62,14 @@ public partial class NotifyIcon(IWndProc wndProc,
         GC.SuppressFinalize(this);
     }
 
+    public unsafe PointerLocation GetPointerPosition()
+    {
+        Point point = new();
+        _ = PInvoke.GetCursorPos(&point);
+
+        return new PointerLocation(point.X, point.Y);
+    }
+
     public void Initialize()
     {
         messenger.RegisterAll(this);
@@ -79,15 +83,18 @@ public partial class NotifyIcon(IWndProc wndProc,
             switch (message.LParam)
             {
                 case (uint)WndProcMessages.WM_LBUTTONUP:
-                    messenger.Send(new NotifyIconInvokedEventArgs(PointerButton.Left));
+                    messenger.Send(new NotifyIconInvokedEventArgs(PointerButton.Left,
+                        GetPointerPosition()));
                     break;
 
                 case (uint)WndProcMessages.WM_MBUTTONUP:
-                    messenger.Send(new NotifyIconInvokedEventArgs(PointerButton.Middle));
+                    messenger.Send(new NotifyIconInvokedEventArgs(PointerButton.Middle,
+                        GetPointerPosition()));
                     break;
 
                 case (uint)WndProcMessages.WM_RBUTTONUP:
-                    messenger.Send(new NotifyIconInvokedEventArgs(PointerButton.Right));
+                    messenger.Send(new NotifyIconInvokedEventArgs(PointerButton.Right,
+                        GetPointerPosition()));
                     break;
             }
         }

Toolkit.Windows/NotifyIconInvokedEventArgs.cs

@@ -1,3 +1,4 @@
 namespace Toolkit.Windows;
 
-public record NotifyIconInvokedEventArgs(PointerButton PointerButton);
+public record NotifyIconInvokedEventArgs(PointerButton Button, 
+    PointerLocation Location);

Toolkit.Windows/PInvoke.cs

@@ -59,4 +59,9 @@ public static partial class PInvoke
 
     public static void GetAppBarPosition(ref AppBarData appBarData) => 
         SHAppBarMessage(AppBarMessage.GetTaskbarPos, ref appBarData);
+
+    internal static bool SetWindowSubclass(HWND value1, Func<HWND, uint, WPARAM, LPARAM, nuint, nuint, LRESULT> value2, int v1, nuint v2)
+    {
+        throw new NotImplementedException();
+    }
 }

Toolkit.Windows/Pointer.cs

@@ -7,8 +7,8 @@ using Windows.Win32.UI.WindowsAndMessaging;
 
 namespace Toolkit.Windows;
 
-public class PointerMonitor(IMessenger messenger) : 
-    IPointerMonitor
+public class Pointer(IMessenger messenger) : 
+    IPointer
 {
     private bool isDisposed;
     private bool isPointerDrag;
@@ -16,7 +16,7 @@ public class PointerMonitor(IMessenger messenger) :
     private HOOKPROC? mouseEventDelegate;
     private UnhookWindowsHookExSafeHandle? mouseHandle;
 
-    ~PointerMonitor()
+    ~Pointer()
     {
         Dispose(false);
     }
@@ -126,9 +126,9 @@ public class PointerMonitor(IMessenger messenger) :
         }
     }
 
-    private unsafe bool TryGetPointer(out Point point)
+    private unsafe bool TryGetPointer(out System.Drawing.Point point)
     {
-        fixed (Point* lpPointLocal = &point)
+        fixed (System.Drawing.Point* lpPointLocal = &point)
         {
             return PInvoke.GetPhysicalCursorPos(lpPointLocal);
         }
@@ -136,7 +136,7 @@ public class PointerMonitor(IMessenger messenger) :
 
     private bool TryGetPointerLocation([MaybeNullWhen(false)] out PointerLocation location)
     {
-        if (TryGetPointer(out Point point))
+        if (TryGetPointer(out System.Drawing.Point point))
         {
             location = new PointerLocation(point.X, point.Y);
             return true;

Toolkit.Windows/Rect.cs

@@ -16,7 +16,10 @@ public record Rect
     }
 
     public int X { get; }
+
     public int Y { get; }
+
     public int Width { get; }
+
     public int Height { get; }
 }

Toolkit.Windows/Taskbar.cs

@@ -40,7 +40,7 @@ public class Taskbar(IMessenger messenger,
         return state;
     }
 
-    public IntPtr GetHandle() => WindowHelper.Find("Shell_TrayWnd");
+    public IntPtr GetHandle() => WindowHelper.FindWindow("Shell_TrayWnd");
 
     public void Receive(WndProcEventArgs args)
     {
@@ -63,7 +63,7 @@ public class Taskbar(IMessenger messenger,
     public void Receive(PointerMovedEventArgs args)
     {
         nint taskbarHandle = GetHandle();
-        if (WindowHelper.TryGetBounds(taskbarHandle, out Rect? rect))
+        if (WindowHelper.TryGetWindowBounds(taskbarHandle, out Rect? rect))
         {
             if (args.Location.IsWithinBounds(rect))
             {

Toolkit.Windows/TaskbarButtonMonitor.cs

@@ -49,7 +49,7 @@ public class TaskbarButtonMonitor :
         taskListHandle = taskbarList.GetHandle();
         taskListElement = clientUIAutomation.ElementFromHandle(taskListHandle);
 
-        if (WindowHelper.TryGetBounds(taskListHandle, out Rect? rect))
+        if (WindowHelper.TryGetWindowBounds(taskListHandle, out Rect? rect))
         {
             taskbarRectCache = rect;
         }
@@ -60,7 +60,7 @@ public class TaskbarButtonMonitor :
 
     private bool CheckDirtyTaskbarRegion()
     {
-        if (WindowHelper.TryGetBounds(taskListHandle, out Rect? rect))
+        if (WindowHelper.TryGetWindowBounds(taskListHandle, out Rect? rect))
         {
             if (taskbarRectCache?.Width != rect.Width ||
                 taskbarRectCache?.Height != rect.Height)

Toolkit.Windows/TaskbarList.cs

@@ -5,8 +5,8 @@ public class TaskbarList(ITaskbar taskbar) :
 {
     public IntPtr GetHandle()
     {
-        nint rebarHandle = WindowHelper.Find("ReBarWindow32", taskbar.GetHandle());
-        nint taskHandle = WindowHelper.Find("MSTaskSwWClass", rebarHandle);
-        return WindowHelper.Find("MSTaskListWClass", taskHandle);
+        nint rebarHandle = WindowHelper.FindWindow("ReBarWindow32", taskbar.GetHandle());
+        nint taskHandle = WindowHelper.FindWindow("MSTaskSwWClass", rebarHandle);
+        return WindowHelper.FindWindow("MSTaskListWClass", taskHandle);
     }
 }

Toolkit.Windows/WindowHelper.cs

@@ -7,35 +7,44 @@ namespace Toolkit.Windows;
 
 public class WindowHelper
 {
-    public static IntPtr GetHandle(string windowName) => PInvoke.FindWindow(windowName, null);
+    public static IntPtr FindWindow(string name) =>
+        PInvoke.FindWindow(name, null);
 
-    public static uint GetDpi(IntPtr handle) => PInvoke.GetDpiForWindow((HWND)handle);
+    public static IntPtr FindWindow(string name, IntPtr handle) =>
+        PInvoke.FindWindowEx(new HWND(handle), new HWND(), name, null);
 
-    public static void BringToForeground(HWND handle)
-    {
-        if (TryGetBoundsUnsafe(handle, out RECT bounds))
-        {
-            PInvoke.SetWindowPos(handle, new HWND(), bounds.left, bounds.top, bounds.right - 
-                bounds.left, bounds.bottom - bounds.top, SET_WINDOW_POS_FLAGS.SWP_SHOWWINDOW | SET_WINDOW_POS_FLAGS.SWP_NOACTIVATE);
-        }
-    }
+    public static uint GetDpi(IntPtr handle) =>
+        PInvoke.GetDpiForWindow((HWND)handle);
 
-    public static IntPtr Find(string windowName) => 
-        PInvoke.FindWindow(windowName, null);
+    public static IntPtr GetWindowHandle(string name) =>
+        PInvoke.FindWindow(name, null);
 
-    public static IntPtr Find(string windowName, IntPtr parentHandle) => 
-        PInvoke.FindWindowEx(new HWND(parentHandle), new HWND(), windowName, null);
+    public static bool HideWindow(IntPtr hWnd) =>
+        PInvoke.ShowWindow(new HWND(hWnd), SHOW_WINDOW_CMD.SW_HIDE);
 
-    public static void MoveAndResize(HWND handle, int x, int y, int width, int height) => 
+    public static void MoveAndResizeWindow(HWND handle, int x, int y, int width, int height) =>
         PInvoke.SetWindowPos(handle, new HWND(), x, y, width, height, 0);
 
-    public static bool TryGetBounds(IntPtr handle,
+    public static bool SetForegroundWindow(HWND handle)
+    {
+        if (TryGetWindowBoundsUnsafe(handle, out RECT bounds))
+        {
+            return PInvoke.SetWindowPos(handle, new HWND(), bounds.left, bounds.top, bounds.right -
+                bounds.left, bounds.bottom - bounds.top, SET_WINDOW_POS_FLAGS.SWP_SHOWWINDOW | SET_WINDOW_POS_FLAGS.SWP_NOACTIVATE) == 1;
+        }
+
+        return false;
+    }
+
+    public static bool ShowWindow(IntPtr hWnd) =>
+        PInvoke.ShowWindow(new HWND(hWnd), SHOW_WINDOW_CMD.SW_SHOW);
+
+    public static bool TryGetWindowBounds(IntPtr handle,
         [MaybeNullWhen(false)] out Rect rect)
     {
-        if (TryGetBoundsUnsafe(handle, out RECT unsafeRect))
+        if (TryGetWindowBoundsUnsafe(handle, out RECT unsafeRect))
         {
             rect = new Rect(unsafeRect.left, unsafeRect.top, unsafeRect.right - unsafeRect.left, unsafeRect.bottom - unsafeRect.top);
-
             return true;
         }
 
@@ -43,7 +52,7 @@ public class WindowHelper
         return false;
     }
 
-    private static unsafe bool TryGetBoundsUnsafe(IntPtr handle, out RECT rect)
+    private static unsafe bool TryGetWindowBoundsUnsafe(IntPtr handle, out RECT rect)
     {
         fixed (RECT* lpRectLocal = &rect)
         {

Toolkit.Windows/WndProc.cs

@@ -1,7 +1,7 @@
 using CommunityToolkit.Mvvm.Messaging;
+using Toolkit.Foundation;
 using Windows.Win32;
 using Windows.Win32.Foundation;
-using Windows.Win32.Graphics.Gdi;
 using Windows.Win32.UI.WindowsAndMessaging;
 
 namespace Toolkit.Windows;
@@ -10,56 +10,61 @@ public class WndProc(IMessenger messenger) :
     IWndProc
 {
     private WNDPROC? handler;
+    private bool isDisposed;
+
+    ~WndProc()
+    {
+        Dispose(false);
+    }
 
     public IntPtr Handle { get; private set; }
 
     public void Dispose()
     {
+        Dispose(true);
         GC.SuppressFinalize(this);
+    }
+
+    public void Initialize() => InitializeWndProc();
+
+    protected virtual void Dispose(bool disposing)
+    {
+        if (isDisposed)
+        {
+            return;
+        }
+
+        isDisposed = true;
+
         PInvoke.DestroyWindow((HWND)Handle);
     }
+    private LRESULT HandleWndProc(HWND hWnd, uint msg,
+        WPARAM wParam, LPARAM lParam)
+    {
+        messenger.Send(new WndProcEventArgs(msg,
+            (uint)wParam.Value,
+            (uint)lParam.Value));
+
+        return PInvoke.DefWindowProc(hWnd, msg, wParam, lParam);
+    }
 
     private unsafe void InitializeWndProc()
     {
-        string windowName = Guid.NewGuid().ToString();
-        handler = Wndproc;
+        string windowId = $"WndProc_Handler_{Guid.NewGuid()}";
+        handler = HandleWndProc;
 
-        WNDCLASSW wndProcWindow;
-
-        wndProcWindow.style = 0;
-        wndProcWindow.lpfnWndProc = handler;
-        wndProcWindow.cbClsExtra = 0;
-        wndProcWindow.cbWndExtra = 0;
-        wndProcWindow.hInstance = new HINSTANCE();
-        wndProcWindow.hIcon = new HICON();
-        wndProcWindow.hCursor = new HCURSOR();
-        wndProcWindow.hbrBackground = new HBRUSH();
-
-        fixed (char* menuName = "")
+        fixed (char* className = windowId)
         {
-            wndProcWindow.lpszMenuName = new PCWSTR(menuName);
-        }
-
-        fixed (char* className = windowName)
+            WNDCLASSW wndCLass = new()
             {
-            wndProcWindow.lpszClassName = new PCWSTR(className);
+                lpfnWndProc = handler,
+                lpszClassName = className,
+            };
+
+            _ = PInvoke.RegisterClass(wndCLass);
         }
 
-        PInvoke.RegisterClass(wndProcWindow);
-        Handle = PInvoke.CreateWindowEx(0, wndProcWindow.lpszClassName, 
-            new PCWSTR(), 0, 0, 0, 0, 0, new HWND(),
-            new HMENU(),
-            new HINSTANCE());
-    }
-
-    private LRESULT Wndproc(HWND param0, uint param1, WPARAM param2, LPARAM param3)
-    {
-        messenger.Send(new WndProcEventArgs(param1, (uint)param2.Value, (uint)param3.Value));
-        return PInvoke.DefWindowProc(param0, param1, param2, param3);
-    }
-
-    public void Initialize()
-    {
-        InitializeWndProc();
+        Handle = PInvoke.CreateWindowEx(0, windowId, windowId, 0, 0, 0, 0, 0,
+            new HWND(IntPtr.Zero), null, null, null);
     }
 }