From be0d4a87d3c8e039f6702748fa3335438187cd73 Mon Sep 17 00:00:00 2001
From: Arc <2973564608@qq.com>
Date: Wed, 14 May 2025 00:52:57 +0800
Subject: [PATCH 1/2] Draft

---
 sources/engine/Stride.Games/GameWindow.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sources/engine/Stride.Games/GameWindow.cs b/sources/engine/Stride.Games/GameWindow.cs
index e1e149ccd9..709f71d16a 100644
--- a/sources/engine/Stride.Games/GameWindow.cs
+++ b/sources/engine/Stride.Games/GameWindow.cs
@@ -114,7 +114,7 @@ public abstract class GameWindow : ComponentBase
         /// Gets or sets a value indicating whether the mouse pointer is visible over this window.
         /// </summary>
         /// <value><c>true</c> if this instance is mouse visible; otherwise, <c>false</c>.</value>
-        public abstract bool IsMouseVisible { get; set; }
+        public abstract bool IsMouseVisible { get; set; } 
 
         /// <summary>
         /// Gets the native window.
@@ -127,6 +127,7 @@ public abstract class GameWindow : ComponentBase
         /// </summary>
         /// <value><c>true</c> if visible; otherwise, <c>false</c>.</value>
         public abstract bool Visible { get; set; }
+        
 
         /// <summary>
         /// Gets or sets the position of the window on the screen.
@@ -138,6 +139,12 @@ public abstract class GameWindow : ComponentBase
         /// </summary>
         /// <value><c>true</c> if this window has a border; otherwise, <c>false</c>.</value>
         public abstract bool IsBorderLess { get; set; }
+        
+        /// <summary>
+        /// Gets or sets a value indicating whether this window background is transparent.
+        /// </summary>
+        /// <value><c>true</c> if this window background is transparent; otherwise, <c>false</c>.</value>
+        public abstract bool IsBackGroundTransparent { get; set; }
 
         /// <summary>
         /// Gets or sets the title of the window.

From a8760692df917c0da23e9702ca2b205924dbfda1 Mon Sep 17 00:00:00 2001
From: Arc <2973564608@qq.com>
Date: Wed, 14 May 2025 00:58:35 +0800
Subject: [PATCH 2/2] Add Base Prop.

---
 sources/engine/Stride.Games/Desktop/GameWindowWinforms.cs | 2 ++
 sources/engine/Stride.Games/SDL/GameWindowSDL.cs          | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/sources/engine/Stride.Games/Desktop/GameWindowWinforms.cs b/sources/engine/Stride.Games/Desktop/GameWindowWinforms.cs
index 5cd805665d..476dd257cc 100644
--- a/sources/engine/Stride.Games/Desktop/GameWindowWinforms.cs
+++ b/sources/engine/Stride.Games/Desktop/GameWindowWinforms.cs
@@ -334,6 +334,8 @@ public override bool IsBorderLess
                 }
             }
         }
+        
+        public override bool IsBackGroundTransparent { get; set; }
 
         private void UpdateFormBorder()
         {
diff --git a/sources/engine/Stride.Games/SDL/GameWindowSDL.cs b/sources/engine/Stride.Games/SDL/GameWindowSDL.cs
index 4baa81c48e..77da745ab5 100644
--- a/sources/engine/Stride.Games/SDL/GameWindowSDL.cs
+++ b/sources/engine/Stride.Games/SDL/GameWindowSDL.cs
@@ -305,6 +305,8 @@ public override bool IsBorderLess
                 }
             }
         }
+        
+        public override bool IsBackGroundTransparent { get; set; }
 
         private void UpdateFormBorder()
         {