Ability to test placement while guildwars is running.

Daybreak/Configuration/ApplicationConfiguration.cs

@@ -6,6 +6,10 @@ namespace Daybreak.Configuration
 {
     public sealed class ApplicationConfiguration
     {
+        [JsonProperty("SetGuildwarsWindowSizeOnLaunch")]
+        public bool SetGuildwarsWindowSizeOnLaunch { get; set; }
+        [JsonProperty("DesiredGuildwarsScreen")]
+        public int DesiredGuildwarsScreen { get; set; }
         [JsonProperty("BrowsersEnabled")]
         public bool BrowsersEnabled { get; set; } = true;
         [JsonProperty("ToolboxPath")]

Daybreak/Configuration/ProjectConfiguration.cs

@@ -9,6 +9,7 @@ using Daybreak.Services.Logging;
 using Daybreak.Services.Mutex;
 using Daybreak.Services.Privilege;
 using Daybreak.Services.Runtime;
+using Daybreak.Services.Screens;
 using Daybreak.Services.Screenshots;
 using Daybreak.Services.Updater;
 using Daybreak.Services.ViewManagement;
@@ -39,6 +40,7 @@ namespace Daybreak.Configuration
             serviceProducer.RegisterSingleton<IBuildTemplateManager, BuildTemplateManager>();
             serviceProducer.RegisterSingleton<IIconRetriever, IconRetriever>();
             serviceProducer.RegisterSingleton<IPrivilegeManager, PrivilegeManager>();
+            serviceProducer.RegisterSingleton<IScreenManager, ScreenManager>();
         }
         public static void RegisterLifetimeServices(IApplicationLifetimeProducer applicationLifetimeProducer)
         {
@@ -63,6 +65,7 @@ namespace Daybreak.Configuration
             viewProducer.RegisterView<BuildTemplateView>();
             viewProducer.RegisterView<BuildsListView>();
             viewProducer.RegisterView<RequestElevationView>();
+            viewProducer.RegisterView<ScreenChoiceView>();
         }
     }
 }

Daybreak/Controls/Templates/ScreenTemplate.xaml

@@ -0,0 +1,17 @@
+<UserControl x:Class="Daybreak.Controls.Templates.ScreenTemplate"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:Daybreak.Controls.Templates"
+             mc:Ignorable="d" 
+             x:Name="_this"
+             d:DesignHeight="450" d:DesignWidth="800">
+    <Grid>
+        <Rectangle Stroke="{Binding ElementName=_this, Path=Highlight, Mode=OneWay}" StrokeThickness="15"></Rectangle>
+        <TextBlock FontSize="168" VerticalAlignment="Center" HorizontalAlignment="Center"
+                   Text="{Binding ElementName=_this, Path=ScreenId, Mode=OneWay}"
+                   Foreground="{Binding ElementName=_this, Path=Highlight, Mode=OneWay}"></TextBlock>
+        <Rectangle Fill="Transparent" MouseEnter="Rectangle_MouseEnter" MouseLeave="Rectangle_MouseLeave" MouseLeftButtonDown="Rectangle_MouseLeftButtonDown"></Rectangle>
+    </Grid>
+</UserControl>

Daybreak/Controls/Templates/ScreenTemplate.xaml.cs

@@ -0,0 +1,73 @@
+using Daybreak.Models;
+using System;
+using System.Extensions;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Extensions;
+using System.Windows.Media;
+
+namespace Daybreak.Controls.Templates
+{
+    /// <summary>
+    /// Interaction logic for ScreenTemplate.xaml
+    /// </summary>
+    public partial class ScreenTemplate : UserControl
+    {
+        public static readonly DependencyProperty ScreenIdProperty =
+            DependencyPropertyExtensions.Register<ScreenTemplate, string>(nameof(ScreenId));
+        public static readonly DependencyProperty HighlightProperty =
+            DependencyPropertyExtensions.Register<ScreenTemplate, Brush>(nameof(Highlight));
+
+        public event EventHandler<Screen> Clicked;
+
+        public string ScreenId
+        {
+            get => this.GetTypedValue<string>(ScreenIdProperty);
+            set => this.SetValue(ScreenIdProperty, value);
+        }
+
+        public Brush Highlight
+        {
+            get => this.GetTypedValue<Brush>(HighlightProperty);
+            set => this.SetValue(HighlightProperty, value);
+        }
+
+        public ScreenTemplate()
+        {
+            this.InitializeComponent();
+            this.DataContextChanged += ScreenTemplate_DataContextChanged;
+        }
+
+        protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e)
+        {
+            base.OnPropertyChanged(e);
+            if (e.Property == ForegroundProperty)
+            {
+                this.Highlight = e.NewValue.As<Brush>();
+            }
+        }
+
+        private void ScreenTemplate_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
+        {
+            if (e.NewValue is Screen screen)
+            {
+                this.ScreenId = screen.Id.ToString();
+            }
+        }
+
+        private void Rectangle_MouseEnter(object sender, System.Windows.Input.MouseEventArgs e)
+        {
+            this.Highlight = Brushes.LightSteelBlue;
+        }
+
+        private void Rectangle_MouseLeave(object sender, System.Windows.Input.MouseEventArgs e)
+        {
+            this.Highlight = this.Foreground;
+        }
+
+        private void Rectangle_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
+        {
+            this.Clicked?.Invoke(this, this.DataContext.As<Screen>());
+        }
+    }
+}

Daybreak/Daybreak.csproj

@@ -9,7 +9,7 @@
     <CopyLocalLockFileAssemblies>false</CopyLocalLockFileAssemblies>
     <LangVersion>preview</LangVersion>
     <ApplicationIcon>Daybreak.ico</ApplicationIcon>
-    <Version>0.8.1</Version>
+    <Version>0.8.4</Version>
   </PropertyGroup>
 
   <ItemGroup>

Daybreak/Models/Screen.cs

@@ -0,0 +1,10 @@
+using System.Windows;
+
+namespace Daybreak.Models
+{
+    public sealed class Screen
+    {
+        public int Id { get; set; }
+        public Rect Size { get; set; }
+    }
+}

Daybreak/Services/ApplicationLauncher/ApplicationLauncher.cs

@@ -23,6 +23,7 @@ namespace Daybreak.Services.ApplicationLauncher
 {
     public class ApplicationLauncher : IApplicationLauncher
     {
+        private const int MaxRetries = 10;
         private const string TexModProcessName = "TexMod";
         private const string UModProcessName = "uMod";
         private const string ToolboxProcessName = "GWToolbox";
@@ -53,30 +54,31 @@ namespace Daybreak.Services.ApplicationLauncher
             this.privilegeManager = privilegeManager.ThrowIfNull(nameof(privilegeManager));
         }
 
-        public async Task LaunchGuildwars()
+        public async Task<bool> LaunchGuildwars()
         {
             var configuration = this.configurationManager.GetConfiguration();
             var auth = await this.credentialManager.GetDefaultCredentials().ConfigureAwait(false);
-            auth.Do(
-                onSome: (credentials) =>
+            return await auth.Switch(
+                onSome: async (credentials) =>
                 {
                     if (configuration.ExperimentalFeatures.MultiLaunchSupport is true)
                     {
                         if (this.privilegeManager.AdminPrivileges is false)
                         {
                             this.privilegeManager.RequestAdminPrivileges<MainView>("You need administrator rights in order to start using multi-launch");
-                            return;
+                            return false;
                         }
 
                         ClearGwLocks();
                     }
 
-                    LaunchGuildwarsProcess(credentials.Username, credentials.Password, credentials.CharacterName);
+                    return await LaunchGuildwarsProcess(credentials.Username, credentials.Password, credentials.CharacterName);
                 },
                 onNone: () =>
                 {
                     throw new CredentialsNotFoundException($"No credentials available");
-                });
+                })
+                .ExtractValue();
         }
 
         public Task LaunchGuildwarsToolbox()
@@ -142,7 +144,7 @@ namespace Daybreak.Services.ApplicationLauncher
             Application.Current.Shutdown();
         }
 
-        private void LaunchGuildwarsProcess(string email, Models.SecureString password, string character)
+        private async Task<bool> LaunchGuildwarsProcess(string email, Models.SecureString password, string character)
         {
             var executable = this.configurationManager.GetConfiguration().GuildwarsPaths.Where(path => path.Default).FirstOrDefault();
             if (executable is null)
@@ -184,6 +186,38 @@ namespace Daybreak.Services.ApplicationLauncher
             {
                 throw new InvalidOperationException($"Unable to launch {executable}");
             }
+
+            var retries = 0;
+            while (true)
+            {
+                await Task.Delay(100);
+                retries++;
+                var gwProcess = Process.GetProcessesByName("gw").FirstOrDefault();
+                if (gwProcess is null && retries < MaxRetries)
+                {
+                    continue;
+                }
+                else if (gwProcess is null && retries >= MaxRetries)
+                {
+                    throw new InvalidOperationException("Newly launched gw process not detected");
+                }
+
+                if (gwProcess.MainWindowHandle == IntPtr.Zero)
+                {
+                    continue;
+                }
+
+                int titleLength = NativeMethods.GetWindowTextLength(gwProcess.MainWindowHandle);
+                var titleBuffer = new StringBuilder(titleLength);
+                var readCount = NativeMethods.GetWindowText(gwProcess.MainWindowHandle, titleBuffer, titleLength + 1);
+                var title = titleBuffer.ToString();
+                if (title != "Guild Wars")
+                {
+                    continue;
+                }
+
+                return true;
+            }
         }
 
         private bool GuildwarsProcessDetected()

Daybreak/Services/ApplicationLauncher/IApplicationLauncher.cs

@@ -7,7 +7,7 @@ namespace Daybreak.Services.ApplicationLauncher
         bool IsGuildwarsRunning { get; }
         bool IsToolboxRunning { get; }
         bool IsTexmodRunning { get; }
-        Task LaunchGuildwars();
+        Task<bool> LaunchGuildwars();
         Task LaunchGuildwarsToolbox();
         Task LaunchTexmod();
         void RestartDaybreakAsAdmin();

Daybreak/Services/Screens/IScreenManager.cs

@@ -0,0 +1,11 @@
+using Daybreak.Models;
+using System.Collections.Generic;
+
+namespace Daybreak.Services.Screens
+{
+    public interface IScreenManager
+    {
+        IEnumerable<Screen> Screens { get; }
+        void MoveGuildwarsToScreen(Screen screen);
+    }
+}

Daybreak/Services/Screens/ScreenManager.cs

@@ -0,0 +1,39 @@
+using Daybreak.Models;
+using Daybreak.Services.Logging;
+using Daybreak.Utils;
+using Pepa.Wpf.Utilities;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Extensions;
+using System.Linq;
+
+namespace Daybreak.Services.Screens
+{
+    public sealed class ScreenManager : IScreenManager
+    {
+        private readonly ILogger logger;
+
+        public IEnumerable<Screen> Screens { get; } = WpfScreenHelper.Screen.AllScreens
+            .Select((screen, index) => new Screen { Id = index, Size = screen.Bounds });
+
+        public ScreenManager(
+            ILogger logger)
+        {
+            this.logger = logger.ThrowIfNull(nameof(logger));
+        }
+
+        public void MoveGuildwarsToScreen(Screen screen)
+        {
+            this.logger.LogInformation($"Attempting to move guildwars to screen {screen.Id}");
+            var hwnd = GetMainWindowHandle();
+            NativeMethods.SetWindowPos(hwnd, NativeMethods.HWND_TOP, screen.Size.Left.ToInt(), screen.Size.Top.ToInt(), screen.Size.Width.ToInt(), screen.Size.Height.ToInt(), NativeMethods.SWP_SHOWWINDOW);
+        }
+
+        private static IntPtr GetMainWindowHandle()
+        {
+            var process = Process.GetProcessesByName("gw").FirstOrDefault();
+            return process is not null ? process.MainWindowHandle : throw new InvalidOperationException("Could not find guildwars process");
+        }
+    }
+}

Daybreak/Utils/NativeMethods.cs

@@ -7,6 +7,10 @@ namespace Pepa.Wpf.Utilities
 {
     static class NativeMethods
     {
+        public static uint SWP_SHOWWINDOW = 0x0040;
+        public static IntPtr HWND_TOPMOST = new(-1);
+        public static IntPtr HWND_TOP = IntPtr.Zero;
+
         [StructLayout(LayoutKind.Sequential, Pack = 1)]
         public struct SystemHandleInformation
         {
@@ -105,5 +109,13 @@ namespace Pepa.Wpf.Utilities
         public static extern NtStatus NtQuerySystemInformation(SystemInformationClass SystemInformationClass, IntPtr SystemInformation, int SystemInformationLength, out int ReturnLength);
         [DllImport("kernel32.dll")]
         public static extern bool QueryFullProcessImageName(IntPtr hProcess, uint dwFlags, StringBuilder lpExeName, ref uint lpdwSize);
+        [DllImport("user32.dll")]
+        public static extern bool SetWindowPos(IntPtr hwnd, IntPtr insertAfter, int x, int y, int cx, int cy, uint flags);
+        [DllImport("user32.dll")]
+        public static extern bool ShowWindow(IntPtr hwnd, int cmd);
+        [DllImport("user32.dll", CharSet = CharSet.Auto)]
+        public static extern int GetWindowTextLength(IntPtr hWnd);
+        [DllImport("user32.dll", CharSet = CharSet.Auto)]
+        public static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
     }
 }

Daybreak/Views/MainView.xaml.cs

@@ -2,9 +2,11 @@
 using Daybreak.Models.Builds;
 using Daybreak.Services.ApplicationLauncher;
 using Daybreak.Services.Configuration;
+using Daybreak.Services.Screens;
 using Daybreak.Services.ViewManagement;
 using System;
 using System.Extensions;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Windows;
@@ -40,6 +42,7 @@ namespace Daybreak.Views
         private readonly IApplicationLauncher applicationDetector;
         private readonly IViewManager viewManager;
         private readonly IConfigurationManager configurationManager;
+        private readonly IScreenManager screenManager;
         private readonly CancellationTokenSource cancellationTokenSource = new();
 
         private bool leftBrowserMaximized = false;
@@ -94,8 +97,10 @@ namespace Daybreak.Views
         public MainView(
             IApplicationLauncher applicationDetector,
             IViewManager viewManager,
-            IConfigurationManager configurationManager)
+            IConfigurationManager configurationManager,
+            IScreenManager screenManager)
         {
+            this.screenManager = screenManager.ThrowIfNull(nameof(screenManager));
             this.configurationManager = configurationManager.ThrowIfNull(nameof(configurationManager));
             this.applicationDetector = applicationDetector.ThrowIfNull(nameof(applicationDetector));
             this.viewManager = viewManager.ThrowIfNull(nameof(viewManager));
@@ -145,7 +150,23 @@ namespace Daybreak.Views
         {
             try
             {
-                await this.applicationDetector.LaunchGuildwars();
+                if (await this.applicationDetector.LaunchGuildwars() is false)
+                {
+                    return;
+                }
+
+                if (this.configurationManager.GetConfiguration().SetGuildwarsWindowSizeOnLaunch)
+                {
+                    var id = this.configurationManager.GetConfiguration().DesiredGuildwarsScreen;
+                    var desiredScreen = this.screenManager.Screens.Skip(id).FirstOrDefault();
+                    if (desiredScreen is null)
+                    {
+                        throw new InvalidOperationException($"Unable to set guildwars on desired screen. No screen with id {id}");
+                    }
+                    await Task.Delay(1000);
+                    this.screenManager.MoveGuildwarsToScreen(desiredScreen);
+                }
+
                 if (this.configurationManager.GetConfiguration().ToolboxAutoLaunch is true)
                 {
                     var delay = this.configurationManager.GetConfiguration().ExperimentalFeatures.ToolboxAutoLaunchDelay;

Daybreak/Views/ScreenChoiceView.xaml

@@ -0,0 +1,28 @@
+<UserControl x:Class="Daybreak.Views.ScreenChoiceView"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:Daybreak.Views"
+             xmlns:controls="clr-namespace:Daybreak.Controls"
+             mc:Ignorable="d" 
+             x:Name="_this"
+             d:DesignHeight="450" d:DesignWidth="800">
+    <Grid Background="#A0202020">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="auto"></RowDefinition>
+            <RowDefinition Height="*"></RowDefinition>
+        </Grid.RowDefinitions>
+        <controls:BackButton Foreground="White" Height="30" Width="30" Grid.Column="0" HorizontalAlignment="Left" Margin="5"
+                             Clicked="BackButton_Clicked"></controls:BackButton>
+        <TextBlock Text="Choose screen" FontSize="18" Foreground="White" HorizontalAlignment="Center"></TextBlock>
+        <controls:OpaqueButton Text="Test" Foreground="White" HighlightOpacity="0.3" Highlight="White" FontSize="18" Width="80"
+                               HorizontalAlignment="Right" Margin="0, 0, 50, 0" Clicked="OpaqueButton_Clicked"
+                               IsEnabled="{Binding ElementName=_this, Path=CanTest, Mode=OneWay}"></controls:OpaqueButton>
+        <controls:SaveButton Foreground="White" Height="30" Width="30" Grid.Column="1" HorizontalAlignment="Right" Margin="5"
+                             Clicked="SaveButton_Clicked"></controls:SaveButton>
+        <Viewbox Grid.Row="1">
+            <Grid x:Name="ScreenContainer"></Grid>
+        </Viewbox>
+    </Grid>
+</UserControl>

Daybreak/Views/ScreenChoiceView.xaml.cs

@@ -0,0 +1,108 @@
+using Daybreak.Controls.Templates;
+using Daybreak.Models;
+using Daybreak.Services.ApplicationLauncher;
+using Daybreak.Services.Configuration;
+using Daybreak.Services.Screens;
+using Daybreak.Services.ViewManagement;
+using System;
+using System.Extensions;
+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Extensions;
+using System.Windows.Media;
+
+namespace Daybreak.Views
+{
+    /// <summary>
+    /// Interaction logic for ScreenChoiceView.xaml
+    /// </summary>
+    public partial class ScreenChoiceView : UserControl
+    {
+        public static readonly DependencyProperty CanTestProperty =
+            DependencyPropertyExtensions.Register<ScreenChoiceView, bool>(nameof(CanTest));
+        
+        private readonly IScreenManager screenManager;
+        private readonly IViewManager viewManager;
+        private readonly IConfigurationManager configurationManager;
+        private readonly IApplicationLauncher applicationLauncher;
+        private int selectedId;
+
+        public bool CanTest
+        {
+            get => this.GetTypedValue<bool>(CanTestProperty);
+            set => this.SetValue(CanTestProperty, value);
+        }
+
+        public ScreenChoiceView(
+            IViewManager viewManager,
+            IScreenManager screenManager,
+            IConfigurationManager configurationManager,
+            IApplicationLauncher applicationLauncher)
+        {
+            this.viewManager = viewManager.ThrowIfNull(nameof(viewManager));
+            this.screenManager = screenManager.ThrowIfNull(nameof(screenManager));
+            this.configurationManager = configurationManager.ThrowIfNull(nameof(configurationManager));
+            this.applicationLauncher = applicationLauncher.ThrowIfNull(nameof(applicationLauncher));
+            this.InitializeComponent();
+            this.selectedId = configurationManager.GetConfiguration().DesiredGuildwarsScreen;
+            this.CanTest = applicationLauncher.IsGuildwarsRunning;
+            this.SetupView();
+        }
+
+        private void SetupView()
+        {
+            foreach(var screen in this.screenManager.Screens)
+            {
+                var screenTemplate = new ScreenTemplate
+                {
+                    DataContext = screen,
+                    Margin = new System.Windows.Thickness(screen.Size.Left, screen.Size.Top, 0, 0),
+                    Width = screen.Size.Width,
+                    Height = screen.Size.Height,
+                    VerticalAlignment = System.Windows.VerticalAlignment.Top,
+                    HorizontalAlignment = System.Windows.HorizontalAlignment.Left,
+                    Foreground = screen.Id == this.selectedId ? Brushes.LightGreen : Brushes.White
+            };
+                screenTemplate.Clicked += ScreenTemplate_Clicked;
+                this.ScreenContainer.Children.Add(screenTemplate);
+            }
+        }
+
+        private void ScreenTemplate_Clicked(object sender, Screen e)
+        {
+            this.SelectScreen(e);
+        }
+
+        private void SelectScreen(Screen screen)
+        {
+            this.selectedId = screen.Id;
+            foreach(var template in this.ScreenContainer.Children.OfType<ScreenTemplate>())
+            {
+                template.Foreground = template.DataContext.As<Screen>().Id == this.selectedId ? Brushes.LightGreen : Brushes.White;
+            }
+        }
+
+        private void BackButton_Clicked(object sender, EventArgs e)
+        {
+            this.viewManager.ShowView<SettingsView>();
+        }
+
+        private void SaveButton_Clicked(object sender, EventArgs e)
+        {
+            this.configurationManager.GetConfiguration().DesiredGuildwarsScreen = this.selectedId;
+            this.viewManager.ShowView<SettingsCategoryView>();
+        }
+
+        private void OpaqueButton_Clicked(object sender, EventArgs e)
+        {
+            var screen = this.screenManager.Screens.Skip(this.selectedId).FirstOrDefault();
+            if (screen is null)
+            {
+                throw new InvalidOperationException($"Unable to test placement. No screen with id {this.selectedId}");
+            }
+
+            this.screenManager.MoveGuildwarsToScreen(screen);
+        }
+    }
+}

Daybreak/Views/SettingsView.xaml

@@ -81,19 +81,21 @@
         <controls:SaveButton Foreground="White" Height="30" Width="30" Grid.Column="1" HorizontalAlignment="Right" Margin="5"
                              Clicked="SaveButton_Clicked"></controls:SaveButton>
         <StackPanel Orientation="Vertical" Grid.Row="1">
-            <TextBlock Text="Texmod path" FontSize="22" Foreground="White"></TextBlock>
-            <TextBlock Text="GWToolbox path: " FontSize="22" Foreground="White"></TextBlock>
-            <TextBlock Text="GWToolbox auto-launch: " FontSize="22" Foreground="White"></TextBlock>
-            <TextBlock Text="Browsers enabled: " FontSize="22" Foreground="White"/>
-            <TextBlock Text="Browsers address bar readonly: " FontSize="22" Foreground="White"/>
-            <TextBlock Text="Left browser homepage: " FontSize="22" Foreground="White"></TextBlock>
-            <TextBlock Text="Right browser homepage: " FontSize="22" Foreground="White"></TextBlock>
+            <TextBlock Text="Texmod path" FontSize="22" Foreground="White" Height="30"></TextBlock>
+            <TextBlock Text="GWToolbox path: " FontSize="22" Foreground="White" Height="30"></TextBlock>
+            <TextBlock Text="GWToolbox auto-launch: " FontSize="22" Foreground="White" Height="30"></TextBlock>
+            <TextBlock Text="Browsers enabled: " FontSize="22" Foreground="White" Height="30"/>
+            <TextBlock Text="Browsers address bar readonly: " FontSize="22" Foreground="White" Height="30"/>
+            <TextBlock Text="Left browser homepage: " FontSize="22" Foreground="White" Height="30"></TextBlock>
+            <TextBlock Text="Right browser homepage: " FontSize="22" Foreground="White" Height="30"></TextBlock>
+            <TextBlock Text="Auto-place on desired screen: " FontSize="22" Foreground="White" Height="30"></TextBlock>
+            <TextBlock Text="Desired screen id: " FontSize="22" Foreground="White" Height="30"></TextBlock>
         </StackPanel>
         <StackPanel Orientation="Vertical" Grid.Row="1" Grid.Column="1">
             <Grid>
                 <TextBox HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
                  FontSize="22" Margin="0, 0, 30, 0" Background="Transparent" Foreground="White"
-                 Text="{Binding ElementName=_this, Path=TexmodPath, Mode=TwoWay}"></TextBox>
+                 Text="{Binding ElementName=_this, Path=TexmodPath, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></TextBox>
                 <controls:FilePickerGlyph Height="30" Width="30" HorizontalAlignment="Right"
                                   Foreground="White" BorderBrush="Gray" BorderThickness="0"
                                   Clicked="TexmodFilePickerGlyph_Clicked"></controls:FilePickerGlyph>
@@ -101,7 +103,7 @@
             <Grid>
                 <TextBox HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
                  FontSize="22" Margin="0, 0, 30, 0" Background="Transparent" Foreground="White"
-                 Text="{Binding ElementName=_this, Path=ToolboxPath, Mode=TwoWay}"></TextBox>
+                 Text="{Binding ElementName=_this, Path=ToolboxPath, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></TextBox>
                 <controls:FilePickerGlyph Height="30" Width="30" HorizontalAlignment="Right"
                                   Foreground="White" BorderBrush="Gray" BorderThickness="0"
                                   Clicked="ToolboxFilePickerGlyph_Clicked"></controls:FilePickerGlyph>
@@ -114,12 +116,21 @@
                       FontSize="22" Foreground="White" IsChecked="{Binding ElementName=_this, Path=AddressBarReadonly, Mode=TwoWay}"></ToggleButton>
             <TextBox HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
                  FontSize="22" Background="Transparent" Foreground="White"
-                 Text="{Binding ElementName=_this, Path=LeftBrowserUrl, Mode=TwoWay}"
-                 TextChanged="LeftBrowserUrl_TextChanged"></TextBox>
+                 Text="{Binding ElementName=_this, Path=LeftBrowserUrl, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></TextBox>
             <TextBox HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
                  FontSize="22" Background="Transparent" Foreground="White"
-                 Text="{Binding ElementName=_this, Path=RightBrowserUrl, Mode=TwoWay}"
-                 TextChanged="RightBrowserUrl_TextChanged"></TextBox>
+                 Text="{Binding ElementName=_this, Path=RightBrowserUrl, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></TextBox>
+            <ToggleButton HorizontalAlignment="Center" HorizontalContentAlignment="Stretch" Style="{StaticResource AnimatedSwitch}" Height="30" Width="40"
+                      FontSize="22" Foreground="White" IsChecked="{Binding ElementName=_this, Path=AutoPlaceOnScreen, Mode=TwoWay}"></ToggleButton>
+            <Grid>
+                <TextBox HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch"
+                 FontSize="22" Background="Transparent" Foreground="White"
+                 Text="{Binding ElementName=_this, Path=DesiredScreen, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                 PreviewTextInput="TextBox_AllowOnlyNumbers" Margin="0, 0, 30, 0"></TextBox>
+                <controls:FilePickerGlyph Height="30" Width="30" HorizontalAlignment="Right"
+                                  Foreground="White" BorderBrush="Gray" BorderThickness="0"
+                                  Clicked="ScreenPickerGlyph_Clicked"></controls:FilePickerGlyph>
+            </Grid>
         </StackPanel>
     </Grid>
 </UserControl>

Daybreak/Views/SettingsView.xaml.cs

@@ -28,6 +28,10 @@ namespace Daybreak.Views
             DependencyPropertyExtensions.Register<SettingsView, string>(nameof(RightBrowserUrl));
         public static readonly DependencyProperty ToolboxAutoLaunchProperty =
             DependencyPropertyExtensions.Register<SettingsView, bool>(nameof(ToolboxAutoLaunch));
+        public static readonly DependencyProperty AutoPlaceOnScreenProperty =
+            DependencyPropertyExtensions.Register<SettingsView, bool>(nameof(AutoPlaceOnScreen));
+        public static readonly DependencyProperty DesiredScreenProperty =
+            DependencyPropertyExtensions.Register<SettingsView, string>(nameof(DesiredScreen));
 
         private readonly IConfigurationManager configurationManager;
         private readonly IViewManager viewManager;
@@ -67,6 +71,16 @@ namespace Daybreak.Views
             get => this.GetTypedValue<bool>(BrowsersEnabledProperty);
             set => this.SetValue(BrowsersEnabledProperty, value);
         }
+        public bool AutoPlaceOnScreen
+        {
+            get => this.GetTypedValue<bool>(AutoPlaceOnScreenProperty);
+            set => this.SetValue(AutoPlaceOnScreenProperty, value);
+        }
+        public string DesiredScreen
+        {
+            get => this.GetTypedValue<string>(DesiredScreenProperty);
+            set => this.SetValue(DesiredScreenProperty, value);
+        }
 
         public SettingsView(
             IConfigurationManager configurationManager,
@@ -88,6 +102,8 @@ namespace Daybreak.Views
             this.ToolboxAutoLaunch = config.ToolboxAutoLaunch;
             this.TexmodPath = config.TexmodPath;
             this.BrowsersEnabled = config.BrowsersEnabled;
+            this.AutoPlaceOnScreen = config.SetGuildwarsWindowSizeOnLaunch;
+            this.DesiredScreen = config.DesiredGuildwarsScreen.ToString();
         }
 
         private void SaveButton_Clicked(object sender, EventArgs e)
@@ -100,6 +116,8 @@ namespace Daybreak.Views
             currentConfig.ToolboxAutoLaunch = this.ToolboxAutoLaunch;
             currentConfig.TexmodPath = this.TexmodPath;
             currentConfig.BrowsersEnabled = this.BrowsersEnabled;
+            currentConfig.SetGuildwarsWindowSizeOnLaunch = this.AutoPlaceOnScreen;
+            currentConfig.DesiredGuildwarsScreen = int.Parse(this.DesiredScreen);
             this.configurationManager.SaveConfiguration(currentConfig);
             this.viewManager.ShowView<SettingsCategoryView>();
         }
@@ -134,19 +152,22 @@ namespace Daybreak.Views
             }
         }
 
+        private void ScreenPickerGlyph_Clicked(object sender, EventArgs e)
+        {
+            this.viewManager.ShowView<ScreenChoiceView>();
+        }
+
         private void BackButton_Clicked(object sender, EventArgs e)
         {
             this.viewManager.ShowView<SettingsCategoryView>();
         }
 
-        private void LeftBrowserUrl_TextChanged(object sender, TextChangedEventArgs e)
+        private void TextBox_AllowOnlyNumbers(object sender, System.Windows.Input.TextCompositionEventArgs e)
         {
-            this.LeftBrowserUrl = sender.As<TextBox>().Text;
-        }
-
-        private void RightBrowserUrl_TextChanged(object sender, TextChangedEventArgs e)
-        {
-            this.RightBrowserUrl = sender.As<TextBox>().Text;
+            if (int.TryParse(e.Text, out _) is false)
+            {
+                e.Handled = true;
+            }
         }
     }
 }