From 5310862c7b3171b32bfd2c7b92d75382efb4336a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Amaro=20Mart=C3=ADnez?= <xoas@airmail.cc>
Date: Fri, 26 Nov 2021 14:08:53 -0500
Subject: [PATCH] Add menu items: Show Desktop, Cascade/Tile, Undo

---
 RetroBar/Controls/Clock.xaml                |   2 +
 RetroBar/Controls/Clock.xaml.cs             |   5 -
 RetroBar/Controls/ShowDesktopButton.xaml.cs |   2 +-
 RetroBar/Controls/TaskButton.xaml           |   2 +-
 RetroBar/PropertiesWindow.xaml              |  14 +-
 RetroBar/PropertiesWindow.xaml.cs           |  12 +-
 RetroBar/Taskbar.xaml                       |  31 ++++
 RetroBar/Taskbar.xaml.cs                    |  84 +++++------
 RetroBar/Utilities/WindowTiler.cs           | 150 ++++++++++++++++++++
 9 files changed, 234 insertions(+), 68 deletions(-)
 create mode 100644 RetroBar/Utilities/WindowTiler.cs

diff --git a/RetroBar/Controls/Clock.xaml b/RetroBar/Controls/Clock.xaml
index d6fb608a..7c636318 100644
--- a/RetroBar/Controls/Clock.xaml
+++ b/RetroBar/Controls/Clock.xaml
@@ -3,6 +3,8 @@
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              MouseLeftButtonDown="Clock_OnMouseLeftButtonDown"
              MouseDoubleClick="Clock_OnMouseDoubleClick"
+             Loaded="UserControl_Loaded"
+             Unloaded="UserControl_Unloaded"
              Template="{DynamicResource ClockTemplateKey}">
     <UserControl.ToolTip>
         <TextBlock Text="{Binding Path=Now, StringFormat=D, Mode=OneWay}"
diff --git a/RetroBar/Controls/Clock.xaml.cs b/RetroBar/Controls/Clock.xaml.cs
index 1f12a5e2..bddeda9e 100644
--- a/RetroBar/Controls/Clock.xaml.cs
+++ b/RetroBar/Controls/Clock.xaml.cs
@@ -179,11 +179,6 @@ private void SetTime()
             Now = DateTime.Now;
         }
 
-        public static void OpenDateTimeCpl()
-        {
-            ShellHelper.StartProcess("timedate.cpl");
-        }
-
         private void Clock_OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
         {
             if (EnvironmentHelper.IsWindows10OrBetter)
diff --git a/RetroBar/Controls/ShowDesktopButton.xaml.cs b/RetroBar/Controls/ShowDesktopButton.xaml.cs
index 0f634396..bd201a19 100644
--- a/RetroBar/Controls/ShowDesktopButton.xaml.cs
+++ b/RetroBar/Controls/ShowDesktopButton.xaml.cs
@@ -53,7 +53,7 @@ private void ContextMenu_Opened(object sender, RoutedEventArgs e)
             }
         }
 
-        private void ToggleDesktop()
+        public static void ToggleDesktop()
         {
             NativeMethods.SendMessage(WindowHelper.FindWindowsTray(IntPtr.Zero),
                 (int)NativeMethods.WM.COMMAND, (IntPtr)TOGGLE_DESKTOP, IntPtr.Zero);
diff --git a/RetroBar/Controls/TaskButton.xaml b/RetroBar/Controls/TaskButton.xaml
index 16f49e3a..b0499e2a 100644
--- a/RetroBar/Controls/TaskButton.xaml
+++ b/RetroBar/Controls/TaskButton.xaml
@@ -145,4 +145,4 @@
             </ToolTip>
         </Button.ToolTip>
     </Button>
-</UserControl>
+</UserControl>
\ No newline at end of file
diff --git a/RetroBar/PropertiesWindow.xaml b/RetroBar/PropertiesWindow.xaml
index e6b074f3..29d58309 100644
--- a/RetroBar/PropertiesWindow.xaml
+++ b/RetroBar/PropertiesWindow.xaml
@@ -178,7 +178,7 @@
                                 </Label>
                                 <ComboBox Name="cboLanguageSelect"
                                           SelectedValue="{Binding Source={x:Static Settings:Settings.Instance}, Path=Language, UpdateSourceTrigger=PropertyChanged}"
-                                          SelectionChanged="cboLanguageSelect_SelectionChanged" />
+                                          SelectionChanged="CboLanguageSelect_SelectionChanged" />
                             </DockPanel>
                             <DockPanel>
                                 <Label VerticalAlignment="Center"
@@ -186,7 +186,7 @@
                                     <AccessText Text="{DynamicResource theme_text}"
                                                 ToolTip="{DynamicResource theme_tip}" />
                                 </Label>
-                                <ComboBox Name="cboThemeSelect"
+                                <ComboBox x:Name="cboThemeSelect"
                                           SelectedValue="{Binding Source={x:Static Settings:Settings.Instance}, Path=Theme, UpdateSourceTrigger=PropertyChanged}" />
                             </DockPanel>
                             <DockPanel>
@@ -198,7 +198,7 @@
                                 <ComboBox Name="cboEdgeSelect"
                                           ItemsSource="{DynamicResource location_values}"
                                           SelectedIndex="{Binding Source={x:Static Settings:Settings.Instance}, Path=Edge, UpdateSourceTrigger=PropertyChanged}"
-                                          SelectionChanged="cboEdgeSelect_SelectionChanged" />
+                                          SelectionChanged="CboEdgeSelect_SelectionChanged" />
                             </DockPanel>
                             <CheckBox IsChecked="{Binding Source={x:Static Settings:Settings.Instance}, Path=AllowFontSmoothing, UpdateSourceTrigger=PropertyChanged}">
                                 <Label Content="{DynamicResource allow_font_smoothing}" />
@@ -295,9 +295,9 @@
                             Margin="10">
                     <StackPanel Orientation="Vertical"
                                 Margin="0,0,0,10">
-                        <CheckBox Checked="AutoStartCheckBox_OnChecked"
-                                  Unchecked="AutoStartCheckBox_OnChecked"
-                                  Name="AutoStartCheckBox">
+                        <CheckBox x:Name="cbAutoStart"
+                                  Checked="CbAutoStart_OnChecked"
+                                  Unchecked="CbAutoStart_OnChecked">
                             <Label Content="{DynamicResource autostart}" />
                         </CheckBox>
                         <CheckBox x:Name="cbMiddleMouseToClose"
@@ -329,7 +329,7 @@
                                           IsEnabled="{Binding Source={x:Static Settings:Settings.Instance}, Path=ShowMultiMon, UpdateSourceTrigger=PropertyChanged}"
                                           ItemsSource="{DynamicResource show_tasks_on_values}"
                                           SelectedIndex="{Binding Source={x:Static Settings:Settings.Instance}, Path=MultiMonMode, UpdateSourceTrigger=PropertyChanged}"
-                                          SelectionChanged="cboMultiMonMode_SelectionChanged" />
+                                          SelectionChanged="CboMultiMonMode_SelectionChanged" />
                             </DockPanel>
                         </StackPanel>
                     </GroupBox>
diff --git a/RetroBar/PropertiesWindow.xaml.cs b/RetroBar/PropertiesWindow.xaml.cs
index ce5dc783..c10a16a2 100644
--- a/RetroBar/PropertiesWindow.xaml.cs
+++ b/RetroBar/PropertiesWindow.xaml.cs
@@ -80,11 +80,11 @@ private void LoadAutoStart()
                 {
                     if (rKeyValueNames.Contains("RetroBar"))
                     {
-                        AutoStartCheckBox.IsChecked = true;
+                        cbAutoStart.IsChecked = true;
                     }
                     else
                     {
-                        AutoStartCheckBox.IsChecked = false;
+                        cbAutoStart.IsChecked = false;
                     }
                 }
             }
@@ -176,7 +176,7 @@ private void PropertiesWindow_OnContentRendered(object sender, EventArgs e)
             UpdateWindowPosition();
         }
 
-        private void AutoStartCheckBox_OnChecked(object sender, RoutedEventArgs e)
+        private void CbAutoStart_OnChecked(object sender, RoutedEventArgs e)
         {
             try
             {
@@ -198,12 +198,12 @@ private void AutoStartCheckBox_OnChecked(object sender, RoutedEventArgs e)
             }
         }
 
-        private void cboLanguageSelect_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
+        private void CboLanguageSelect_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
         {
             LoadVersion();
         }
         
-        private void cboEdgeSelect_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
+        private void CboEdgeSelect_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
         {
             if (cboEdgeSelect.SelectedItem == null)
             {
@@ -211,7 +211,7 @@ private void cboEdgeSelect_SelectionChanged(object sender, System.Windows.Contro
             }
         }
 
-        private void cboMultiMonMode_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
+        private void CboMultiMonMode_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
         {
             if (cboMultiMonMode.SelectedItem == null)
             {
diff --git a/RetroBar/Taskbar.xaml b/RetroBar/Taskbar.xaml
index 28112973..2e589aa2 100644
--- a/RetroBar/Taskbar.xaml
+++ b/RetroBar/Taskbar.xaml
@@ -18,6 +18,20 @@
             <converters:SettingsToTextFormattingModeConverter x:Key="textFormattingModeConverter" />
             <converters:EdgeOrientationConverter x:Key="edgeOrientationConverter" />
             <converters:DockOrientationConverter x:Key="dockOrientationConverter" />
+            <Style x:Key="UndoMenuItemStyle" TargetType="{x:Type MenuItem}">
+                <Setter Property="Visibility" Value="Collapsed" />
+                <Style.Triggers>
+                    <Trigger Property="Tag" Value="cascade">
+                        <Setter Property="Header" Value="{DynamicResource undo_cascade}"/>
+                    </Trigger>
+                    <Trigger Property="Tag" Value="tile">
+                        <Setter Property="Header" Value="{DynamicResource undo_tile}"/>
+                    </Trigger>
+                    <Trigger Property="Tag" Value="minimize">
+                        <Setter Property="Header" Value="{DynamicResource undo_minimize_all}"/>
+                    </Trigger>
+                </Style.Triggers>
+            </Style>
             <MenuItem x:Shared="false" x:Key="ToolbarsItem" Header="{DynamicResource toolbars}">
                 <MenuItem Header="{DynamicResource quick_launch}" IsCheckable="true"
                           IsChecked="{Binding Source={x:Static utilities:Settings.Instance}, Path=ShowQuickLaunch, UpdateSourceTrigger=PropertyChanged}" />
@@ -26,6 +40,11 @@
             </MenuItem>
             <MenuItem x:Shared="false" x:Key="SetTimeMenuItem" Header="{DynamicResource set_time}" Click="SetTimeMenuItem_OnClick" />
             <MenuItem x:Shared="false" x:Key="CustomizeNotificationsMenuItem" Header="{DynamicResource customize_notifications_menu}" Click="CustomizeNotificationsMenuItem_OnClick" />
+            <MenuItem x:Shared="false" x:Key="CascadeMenuItem" Header="{DynamicResource cascade}" Click="CascadeMenuItem_OnClick" />
+            <MenuItem x:Shared="false" x:Key="HorizTileMenuItem" Header="{DynamicResource horiz_tile}" Click="HorizTileMenuItem_OnClick" />
+            <MenuItem x:Shared="false" x:Key="VertTileMenuItem" Header="{DynamicResource vert_tile}" Click="VertTileMenuItem_OnClick" />
+            <MenuItem x:Shared="false" x:Key="ToggleDesktopMenuItem" Header="{DynamicResource toggle_desktop}" Click="ToggleDesktopMenuItem_OnClick" />
+            <MenuItem x:Shared="false" x:Key="UndoMenuItem" Style="{DynamicResource UndoMenuItemStyle}" Click="UndoMenuItem_OnClick" />
             <MenuItem x:Shared="false" x:Key="TaskManagerMenuItem" Style="{DynamicResource TaskManMenuItem}" Click="TaskManagerMenuItem_OnClick" />
             <MenuItem x:Shared="false" x:Key="LockTaskbarMenuItem" Header="{DynamicResource lock_taskbar_menu}" IsCheckable="True" IsChecked="{Binding Source={x:Static utilities:Settings.Instance}, Path=LockTaskbar, UpdateSourceTrigger=PropertyChanged}" />
             <MenuItem x:Shared="false" x:Key="PropertiesMenuItem" Header="{DynamicResource tray_properties}" Click="PropertiesMenuItem_OnClick" />
@@ -90,6 +109,12 @@
                         <StaticResourceExtension ResourceKey="SetTimeMenuItem" />
                         <StaticResourceExtension ResourceKey="CustomizeNotificationsMenuItem" />
                         <Separator />
+                        <StaticResourceExtension ResourceKey="CascadeMenuItem" />
+                        <StaticResourceExtension ResourceKey="HorizTileMenuItem" />
+                        <StaticResourceExtension ResourceKey="VertTileMenuItem" />
+                        <StaticResourceExtension ResourceKey="ToggleDesktopMenuItem" />
+                        <StaticResourceExtension ResourceKey="UndoMenuItem" />
+                        <Separator />
                         <StaticResourceExtension ResourceKey="TaskManagerMenuItem" />
                         <Separator />
                         <StaticResourceExtension ResourceKey="LockTaskbarMenuItem" />
@@ -123,6 +148,12 @@
             <!-- TODO: Add when desk bands and additional taskbars are supported. -->
             <!--StaticResourceExtension ResourceKey="ToolbarsItem" />
             <Separator /-->
+            <StaticResourceExtension ResourceKey="CascadeMenuItem" />
+            <StaticResourceExtension ResourceKey="HorizTileMenuItem" />
+            <StaticResourceExtension ResourceKey="VertTileMenuItem" />
+            <StaticResourceExtension ResourceKey="ToggleDesktopMenuItem" />
+            <StaticResourceExtension ResourceKey="UndoMenuItem" />
+            <Separator />
             <StaticResourceExtension ResourceKey="TaskManagerMenuItem" />
             <Separator />
             <MenuItem x:Name="UpdateAvailableMenuItem"
diff --git a/RetroBar/Taskbar.xaml.cs b/RetroBar/Taskbar.xaml.cs
index 76d7e323..4d1d37bc 100644
--- a/RetroBar/Taskbar.xaml.cs
+++ b/RetroBar/Taskbar.xaml.cs
@@ -9,7 +9,6 @@
 using System.Windows.Controls;
 using RetroBar.Utilities;
 using Application = System.Windows.Application;
-using RetroBar.Controls;
 using System.Diagnostics;
 using System.Windows.Input;
 using ManagedShell.Common.Logging;
@@ -29,8 +28,6 @@ public bool IsLocked
             }
         }
 
-        private bool _clockRightClicked;
-        private bool _notifyAreaRightClicked;
         private bool _startMenuOpen;
         private LowLevelMouseHook _mouseDragHook;
         private Point? _mouseDragStart = null;
@@ -289,7 +286,7 @@ private void Taskbar_OnSizeChanged(object sender, SizeChangedEventArgs e)
             StartButton?.UpdateFloatingStartCoordinates();
         }
 
-        private void DateTimeMenuItem_OnClick(object sender, RoutedEventArgs e)
+        private void SetTimeMenuItem_OnClick(object sender, RoutedEventArgs e)
         {
             ShellHelper.StartProcess("timedate.cpl");
         }
@@ -300,9 +297,42 @@ private void CustomizeNotificationsMenuItem_OnClick(object sender, RoutedEventAr
             propWindow.OpenCustomizeNotifications();
         }
 
-        private void SetTimeMenuItem_OnClick(object sender, RoutedEventArgs e)
+        private void ChangeUndoMenuItem(string tag = "", Visibility v = Visibility.Visible)
+        {
+            Style undoMenuItemStyle = (Style)Resources["UndoMenuItemStyle"];
+            Style newMenuItemStyle = new Style(typeof(MenuItem), undoMenuItemStyle);
+            newMenuItemStyle.Setters.Add(new Setter(TagProperty, tag));
+            newMenuItemStyle.Setters.Add(new Setter(VisibilityProperty, v));
+            Resources["UndoMenuItemStyle"] = newMenuItemStyle;
+        }
+
+        private void CascadeMenuItem_OnClick(object sender, RoutedEventArgs e)
+        {
+            WindowTiler.CascadeWindows();
+            ChangeUndoMenuItem("cascade");
+        }
+
+        private void HorizTileMenuItem_OnClick(object sender, RoutedEventArgs e)
+        {
+            WindowTiler.TileWindowsHorizontally();
+            ChangeUndoMenuItem("tile");
+        }
+
+        private void VertTileMenuItem_OnClick(object sender, RoutedEventArgs e)
         {
-            Clock.OpenDateTimeCpl();
+            WindowTiler.TileWindowsVertically();
+            ChangeUndoMenuItem("tile");
+        }
+
+        private void ToggleDesktopMenuItem_OnClick(object sender, RoutedEventArgs e)
+        {
+            Controls.ShowDesktopButton.ToggleDesktop();
+        }
+
+        private void UndoMenuItem_OnClick(object sender, RoutedEventArgs e)
+        {
+            WindowTiler.RestoreWindowPositions();
+            ChangeUndoMenuItem(v: Visibility.Collapsed);
         }
 
         private void TaskManagerMenuItem_OnClick(object sender, RoutedEventArgs e)
@@ -389,38 +419,6 @@ private void ContextMenu_Opened(object sender, RoutedEventArgs e)
             {
                 UpdateAvailableMenuItem.Visibility = Visibility.Visible;
             }
-
-            // Some menu items should only be accessible when the clock is what was right-clicked
-
-            if (_clockRightClicked)
-            {
-                DateTimeMenuItem.Visibility = Visibility.Visible;
-            }
-            else
-            {
-                DateTimeMenuItem.Visibility = Visibility.Collapsed;
-            }
-
-            if(_notifyAreaRightClicked && Settings.Instance.CollapseNotifyIcons)
-            {
-                CustomizeNotificationsMenuItem.Visibility = Visibility.Visible;
-            }
-            else
-            {
-                CustomizeNotificationsMenuItem.Visibility = Visibility.Collapsed;
-            }
-
-            if (_clockRightClicked || (_notifyAreaRightClicked && Settings.Instance.CollapseNotifyIcons))
-            {
-                NotificationAreaSeparator.Visibility = Visibility.Visible;
-            }
-            else
-            {
-                NotificationAreaSeparator.Visibility = Visibility.Collapsed;
-            }
-
-            _clockRightClicked = false;
-            _notifyAreaRightClicked = false;
         }
 
         public void SetTrayHost()
@@ -449,16 +447,6 @@ public void SetStartMenuOpen(bool isOpen)
             }
         }
 
-        private void Clock_PreviewMouseRightButtonUp(object sender, MouseButtonEventArgs e)
-        {
-            _clockRightClicked = true;
-        }
-
-        private void NotifyArea_PreviewMouseRightButtonUp(object sender, MouseButtonEventArgs e)
-        {
-            _notifyAreaRightClicked = true;
-        }
-
         private void Taskbar_OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
         {
             if (!IsLocked)
diff --git a/RetroBar/Utilities/WindowTiler.cs b/RetroBar/Utilities/WindowTiler.cs
new file mode 100644
index 00000000..a0fdaecb
--- /dev/null
+++ b/RetroBar/Utilities/WindowTiler.cs
@@ -0,0 +1,150 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Runtime.InteropServices;
+using System.Text;
+using static ManagedShell.Interop.NativeMethods;
+
+namespace RetroBar.Utilities
+{
+    public class WindowTiler
+    {
+        [DllImport("user32.dll")]
+        private static extern IntPtr GetDesktopWindow();
+
+        private const int MDITILE_VERTICAL = 0x0000;
+        private const int MDITILE_HORIZONTAL = 0x0001;
+
+        [DllImport("user32.dll")]
+        private static extern ushort CascadeWindows(IntPtr hwndParent, uint wHow, IntPtr lpRect, uint cKids, IntPtr[] lpKids);
+
+        [DllImport("user32.dll")]
+        private static extern ushort CascadeWindows(IntPtr hwndParent, uint wHow, IntPtr lpRect, uint cKids, IntPtr lpKids);
+
+        [DllImport("user32.dll")]
+        private static extern int TileWindows(IntPtr hwndParent, int wHow, IntPtr lpRect, int cKids, IntPtr[] lpKids);
+
+        [DllImport("user32.dll")]
+        private static extern int TileWindows(IntPtr hwndParent, int wHow, IntPtr lpRect, int cKids, IntPtr lpKids);
+
+        public static void TileWindows(int wHow, IntPtr[] hwndChildren)
+        {
+            SaveWindowPositions();
+
+            if (hwndChildren == null)
+            {
+                TileWindows(GetDesktopWindow(), wHow, IntPtr.Zero, 0, IntPtr.Zero);
+            }
+            else
+            {
+                TileWindows(GetDesktopWindow(), wHow, IntPtr.Zero, hwndChildren.Length, hwndChildren);
+            }
+        }
+
+        public static void TileWindowsHorizontally(IntPtr[] hwndChildren = null)
+        {
+            TileWindows(MDITILE_HORIZONTAL, hwndChildren);
+        }
+
+        public static void TileWindowsVertically(IntPtr[] hwndChildren = null)
+        {
+            TileWindows(MDITILE_VERTICAL, hwndChildren);
+        }
+
+        public static void CascadeWindows(IntPtr[] hWndChildren = null)
+        {
+            SaveWindowPositions();
+
+            if (hWndChildren == null)
+            {
+                CascadeWindows(GetDesktopWindow(), 0, IntPtr.Zero, 0, IntPtr.Zero);
+            }
+            else
+            {
+                CascadeWindows(GetDesktopWindow(), 0, IntPtr.Zero, (uint)hWndChildren.Length, hWndChildren);
+            }
+        }
+
+        [DllImport("user32.dll", SetLastError = true)]
+        private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);
+
+        public class WindowInfo
+        {
+            public Rectangle position;
+            public string title;
+            public string className;
+
+            public WindowInfo(Rectangle position, string title, string className)
+            {
+                this.position = position;
+                this.title = title;
+                this.className = className;
+            }
+        }
+
+        private static List<WindowInfo> infoList;
+        private static List<WindowShowStyle> showStyleList;
+
+        /// <summary>
+        /// Returns whether a window is normal (1), minimized (2), or maximized (3).
+        /// </summary>
+        /// <param name="hWnd">The handle of the window.</param>
+        private static WindowShowStyle GetWindowShowStyle(IntPtr hWnd)
+        {
+            WINDOWPLACEMENT placement = new WINDOWPLACEMENT();
+            GetWindowPlacement(hWnd, ref placement);
+            return placement.showCmd;
+        }
+
+        private static void SaveWindowPositions()
+        {
+            infoList = new List<WindowInfo>();
+            infoList.Clear();
+            showStyleList = new List<WindowShowStyle>();
+            showStyleList.Clear();
+            foreach (IntPtr hwnd in GetOpenWindows())
+            {
+                GetWindowRect(hwnd, out Rect rect);
+                StringBuilder title = new StringBuilder(255);
+                GetWindowText(hwnd, title, 255);
+                StringBuilder className = new StringBuilder(255);
+                GetClassName(hwnd, className, 255);
+                infoList.Add(new WindowInfo(new Rectangle(rect.Left, rect.Top, rect.Right - rect.Left, rect.Bottom - rect.Top), title.ToString(), className.ToString()));
+                showStyleList.Add(GetWindowShowStyle(hwnd));
+            }
+        }
+
+        public static void RestoreWindowPositions()
+        {
+            if (infoList == null || infoList.Count == 0)
+            {
+                return;
+            }
+            for (int i = infoList.Count; i-- > 0;)
+            {
+                IntPtr hWnd = FindWindow(infoList[i].className, infoList[i].title);
+                if (hWnd != IntPtr.Zero)
+                {
+                    ShowWindow(hWnd, showStyleList[i]); // FIXME: Should we use SetWindowPlacement instead?
+                    SetWindowPos(hWnd, IntPtr.Zero, infoList[i].position.X, infoList[i].position.Y, infoList[i].position.Width, infoList[i].position.Height,
+                        (int)SetWindowPosFlags.SWP_NOZORDER | (int)SetWindowPosFlags.SWP_NOACTIVATE);
+                }
+            }
+        }
+
+        public static List<IntPtr> GetOpenWindows()
+        {
+            List<IntPtr> windows = new List<IntPtr>();
+            EnumWindows((hWnd, lParam) =>
+            {
+                if (IsWindowVisible(hWnd))
+                {
+                    windows.Add(hWnd);
+                }
+                return true;
+            }, 0);
+
+            return windows;
+        }
+    }
+}
\ No newline at end of file