Add deferred work area option to position updates

src/ManagedShell.AppBar/AppBarWindow.cs

@@ -465,7 +465,10 @@ protected virtual IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lPa
                 switch ((NativeMethods.AppBarNotifications)wParam.ToInt32())
                 {
                     case NativeMethods.AppBarNotifications.PosChanged:
-                        _appBarManager.ABSetPos(this);
+                        if (!DeferWorkArea)
+                        {
+                            _appBarManager.ABSetPos(this);
+                        }
                         break;
 
                     case NativeMethods.AppBarNotifications.WindowArrange:
@@ -538,14 +541,14 @@ protected virtual IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lPa
                     changed = true;
                 }
 
-                if (changed && AppBarMode == AppBarMode.Normal && !EnvironmentHelper.IsAppRunningAsShell && !AllowClose)
+                if (changed && AppBarMode == AppBarMode.Normal && !EnvironmentHelper.IsAppRunningAsShell && !AllowClose && !DeferWorkArea)
                 {
                     // Tell other AppBars we changed
                     _appBarManager.AppBarWindowPosChanged(this);
                 }
 
                 // Determine if we are intentionally moving
-                if (changed && !IsMoving && (wndPos.flags & NativeMethods.SetWindowPosFlags.SWP_NOMOVE) == 0)
+                if (changed && !IsMoving && !DeferWorkArea && (wndPos.flags & NativeMethods.SetWindowPosFlags.SWP_NOMOVE) == 0)
                 {
                     // Someone else moved us! Let's restore state.
                     ShellLogger.Debug($"AppBarWindow: Repositioning due to unexpected move to {wndPos.x},{wndPos.y}");
@@ -713,6 +716,8 @@ protected internal NativeMethods.Rect GetDesiredRect()
             return rect;
         }
 
+        public bool DeferWorkArea { get; set; }
+
         protected internal bool SetWindowPosition(NativeMethods.Rect newRect)
         {
             var currentRect = WindowRect;
@@ -735,7 +740,7 @@ protected internal bool SetWindowPosition(NativeMethods.Rect newRect)
             NativeMethods.SetWindowPos(Handle, IntPtr.Zero, newRect.Left, newRect.Top, newRect.Width, newRect.Height, swp);
             IsMoving = false;
 
-            if (EnvironmentHelper.IsAppRunningAsShell)
+            if (EnvironmentHelper.IsAppRunningAsShell && !DeferWorkArea)
             {
                 _appBarManager.SetWorkArea(Screen);
             }
@@ -768,7 +773,7 @@ protected virtual void SetScreenProperties(ScreenSetupReason reason)
         public virtual bool UpdatePosition()
         {
             // Let Explorer AppBar figure out our position if we are an AppBar, otherwise set our desired rect
-            if (AppBarMode == AppBarMode.Normal && !EnvironmentHelper.IsAppRunningAsShell)
+            if (AppBarMode == AppBarMode.Normal && !EnvironmentHelper.IsAppRunningAsShell && !DeferWorkArea)
             {
                 return _appBarManager.ABSetPos(this);
             }

src/ManagedShell.Common/Helpers/SoundHelper.cs

@@ -157,7 +157,7 @@ public static void PlayNotificationSound()
             if (EnvironmentHelper.IsWindows8OrBetter)
             {
                 // Toast notification sound.
-                if (!PlaySystemSound("Notification.Default"))
+                if (!PlaySystemSound(".Default", "Notification.Default"))
                     PlayXPNotificationSound();
             }
             else

src/ManagedShell.Interop/NativeMethods.Gdi32.cs

@@ -9,5 +9,8 @@ public partial class NativeMethods
 
         [DllImport(Gdi32_DllName)]
         public static extern bool DeleteObject(IntPtr hObject);
+
+        [DllImport(Gdi32_DllName)]
+        public static extern IntPtr CreateRectRgn(int nLeftRect, int nTopRect, int nRightRect, int nBottomRect);
     }
 }

src/ManagedShell.Interop/NativeMethods.User32.cs

@@ -36,6 +36,9 @@ public partial class NativeMethods
         [DllImport(User32_DllName)]
         public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, int uFlags);
 
+        [DllImport(User32_DllName)]
+        public static extern int SetWindowRgn(IntPtr hWnd, IntPtr hRgn, bool bRedraw);
+
         public enum WindowZOrder
         {
             HWND_TOP = 0,
@@ -232,11 +235,56 @@ public enum WindowLongFlags : int
         public const int HSHELL_HIGHBIT = 0x8000;
 
         public const int SC_MINIMIZE = 0xF020;
+        public const int SC_MAXIMIZE = 0xF030;
         public const int SC_MOVE = 0xF010;
         public const int SC_RESTORE = 0xF120;
         public const int SC_SIZE = 0xF000;
         public const int SC_CLOSE = 0xF060;
 
+        public const uint MF_BYCOMMAND = 0x00000000;
+        public const uint MF_GRAYED = 0x00000001;
+        public const uint MF_ENABLED = 0x00000000;
+
+        // Specifies how TrackPopupMenuEx positions the shortcut menu horizontally
+        [Flags]
+        public enum TPM : uint
+        {
+            LEFTBUTTON = 0x0000,
+            RIGHTBUTTON = 0x0002,
+            LEFTALIGN = 0x0000,
+            CENTERALIGN = 0x0004,
+            RIGHTALIGN = 0x0008,
+            TOPALIGN = 0x0000,
+            VCENTERALIGN = 0x0010,
+            BOTTOMALIGN = 0x0020,
+            HORIZONTAL = 0x0000,
+            VERTICAL = 0x0040,
+            NONOTIFY = 0x0080,
+            RETURNCMD = 0x0100,
+            RECURSE = 0x0001,
+            HORPOSANIMATION = 0x0400,
+            HORNEGANIMATION = 0x0800,
+            VERPOSANIMATION = 0x1000,
+            VERNEGANIMATION = 0x2000,
+            NOANIMATION = 0x4000,
+            LAYOUTRTL = 0x8000,
+            WORKAREA = 0x10000
+        }
+
+        [DllImport(User32_DllName, SetLastError = true)]
+        public static extern bool GetCursorPos(out POINT lpPoint);
+
+        [DllImport(User32_DllName, SetLastError = true)]
+        public static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert);
+
+        [DllImport(User32_DllName, SetLastError = true)]
+        public static extern bool EnableMenuItem(IntPtr hMenu, uint uIDEnableItem, uint uEnable);
+
+        // Displays a shortcut menu at the specified location and 
+        // tracks the selection of items on the shortcut menu
+        [DllImport(User32_DllName, ExactSpelling = true, SetLastError = true)]
+        public static extern uint TrackPopupMenuEx(IntPtr hMenu, TPM uFlags, int x, int y, IntPtr hWnd, IntPtr lpTPMParams);
+
         [StructLayout(LayoutKind.Sequential)]
         public struct COPYDATASTRUCT
         {

src/ManagedShell.Interop/NativeMethods.cs

@@ -53,16 +53,23 @@ public ShortRect(short left, short top, short right, short bottom)
             public int Height => Bottom - Top;
         }
 
+        [StructLayout(LayoutKind.Sequential)]
         public struct POINT
         {
-            public POINT(long x, long y)
+            public int x;
+            public int y;
+
+            public POINT(int x, int y)
             {
                 this.x = x;
                 this.y = y;
             }
-
-            public long x;
-            public long y;
+
+            public POINT(long x, long y)
+            {
+                this.x = (int)x;
+                this.y = (int)y;
+            }
         }
 
         // lo = x; hi = y

src/ManagedShell.ShellFolders/Interop.cs

@@ -119,19 +119,6 @@ public static extern int CoCreateInstance(
             ref Guid riid,
             out IntPtr ppv);
 
-        // Displays a shortcut menu at the specified location and 
-        // tracks the selection of items on the shortcut menu
-        [DllImport("user32.dll",
-            ExactSpelling = true,
-            CharSet = CharSet.Auto)]
-        public static extern uint TrackPopupMenuEx(
-            IntPtr hmenu,
-            TPM flags,
-            int x,
-            int y,
-            IntPtr hwnd,
-            IntPtr lptpm);
-
         // Creates a popup-menu. The menu is initially empty, but it can be filled with 
         // menu items by using the InsertMenuItem, AppendMenu, and InsertMenu functions
         [DllImport("user32",

src/ManagedShell.ShellFolders/ShellFolderContextMenu.cs

@@ -86,9 +86,9 @@ private void ShowMenu(ShellFolder folder, IntPtr contextMenu)
                 NativeMethods.AllowDarkModeForWindow(Handle, true);
             }
 
-            uint selected = Interop.TrackPopupMenuEx(
+            uint selected = NativeMethods.TrackPopupMenuEx(
                 contextMenu,
-                TPM.RETURNCMD,
+                NativeMethods.TPM.RETURNCMD,
                 x,
                 y,
                 Handle,

src/ManagedShell.ShellFolders/ShellItemContextMenu.cs

@@ -171,9 +171,9 @@ private void ShowMenu(ShellItem[] files, bool allFolders)
                 NativeMethods.AllowDarkModeForWindow(Handle, true);
             }
 
-            uint selected = Interop.TrackPopupMenuEx(
+            uint selected = NativeMethods.TrackPopupMenuEx(
                 nativeMenuPtr,
-                TPM.RETURNCMD,
+                NativeMethods.TPM.RETURNCMD,
                 x,
                 y,
                 Handle,