diff --git a/framework/platform-dx/game.cpp b/framework/platform-dx/game.cpp
index b128ff8..ec10b7d 100644
--- a/framework/platform-dx/game.cpp
+++ b/framework/platform-dx/game.cpp
@@ -81,8 +81,8 @@ namespace xna {
 	}	
 
 	void Game::Initialize() {	
-		Keyboard::Initialize();
-		Mouse::Initialize();
+		Keyboard::Initialize();		
+		Mouse::Initialize(_gameWindow->Handle());
 		GamePad::Initialize();
 		AudioEngine::Initialize();		
 
diff --git a/framework/platform-dx/mouse.cpp b/framework/platform-dx/mouse.cpp
index 039a37d..77b3842 100644
--- a/framework/platform-dx/mouse.cpp
+++ b/framework/platform-dx/mouse.cpp
@@ -2,9 +2,6 @@
 
 namespace xna {
 	MouseState Mouse::GetState() {
-		if (!impl || !impl->_dxMouse)
-			return MouseState();
-
 		const auto state = impl->_dxMouse->GetState();
 		MouseState mstate;
 		mstate.LeftButton = static_cast<ButtonState>(state.leftButton);
@@ -19,35 +16,32 @@ namespace xna {
 		return mstate;
 	}
 
-	bool Mouse::IsConnected() {
-		if (!impl || !impl->_dxMouse)
-			return false;
-
+	bool Mouse::IsConnected() {		
 		return impl->_dxMouse->IsConnected();
 	}
 
 	bool Mouse::IsVisible() {
-		if (!impl || !impl->_dxMouse)
-			return false;
-
 		return impl->_dxMouse->IsVisible();
 	}
 
 	void Mouse::IsVisible(bool value) {
-		if (!impl || !impl->_dxMouse)
-			return;
-
 		impl->_dxMouse->SetVisible(value);
 	}
 
 	void Mouse::ResetScrollWheel() {
-		if (!impl || !impl->_dxMouse)
-			return;
-		
 		impl->_dxMouse->ResetScrollWheelValue();
 	}
 
-	void Mouse::Initialize() {
+	void Mouse::Initialize(intptr_t handle) {
 		impl = unew<PlatformImplementation>();
+		windowHandle = handle;
+	}
+
+	void Mouse::WindowHandle(intptr_t value) {
+		auto hwnd = reinterpret_cast<HWND>(value);
+
+		if (!hwnd) return;
+		
+		impl->_dxMouse->SetWindow(hwnd);
 	}
 }
\ No newline at end of file
diff --git a/inc/xna/input/mouse.hpp b/inc/xna/input/mouse.hpp
index 8686291..23c9a3c 100644
--- a/inc/xna/input/mouse.hpp
+++ b/inc/xna/input/mouse.hpp
@@ -4,15 +4,24 @@
 #include "../default.hpp"
 
 namespace xna {
+	//Represents the state of a mouse input device, including mouse cursor position and buttons pressed.
 	struct MouseState {
+		//Returns the state of the left mouse button.
 		ButtonState LeftButton{ ButtonState::Released };
-		ButtonState RightButton{ ButtonState::Released };
+		//Returns the state of the middle mouse button.
 		ButtonState MiddleButton{ ButtonState::Released };
-		ButtonState XButton1{ ButtonState::Released };
-		ButtonState XButton2{ ButtonState::Released };
-		int X{ 0 };
-		int Y{ 0 };
+		//Returns the state of the right mouse button.
+		ButtonState RightButton{ ButtonState::Released };
+		//Gets the cumulative mouse scroll wheel value since the game was started.
 		int ScroolWheelValue{ 0 };
+		//Specifies the horizontal position of the mouse cursor.
+		int X{ 0 };
+		//Returns the state of XBUTTON1.
+		ButtonState XButton1{ ButtonState::Released };
+		//Returns the state of XBUTTON2.
+		ButtonState XButton2{ ButtonState::Released };
+		//Specifies the vertical position of the mouse cursor.
+		int Y{ 0 };
 	};
 
 	//Allows retrieval of position and button clicks from a mouse input device. 
@@ -21,6 +30,16 @@ namespace xna {
 		//Gets the current state of the mouse, including mouse position and buttons pressed. 
 		static MouseState GetState();
 
+		//Gets or sets the window used for mouse processing. 
+		//Mouse coordinates returned by GetState are relative to the upper-left corner of this window. 
+		constexpr static intptr_t WindowHandle() {
+			return windowHandle;
+		}
+
+		//Gets or sets the window used for mouse processing. 
+		//Mouse coordinates returned by GetState are relative to the upper-left corner of this window. 
+		static void WindowHandle(intptr_t value);
+
 		static bool IsConnected();
 		static bool IsVisible();
 		static void IsVisible(bool value);
@@ -28,12 +47,14 @@ namespace xna {
 
 	private:
 		friend class Game;
-		static void Initialize();
+		static void Initialize(intptr_t windowHandle);
 
 		Mouse() = default;
 		Mouse(Mouse&) = default;
 		Mouse(Mouse&&) = default;
 
+		inline static intptr_t windowHandle = 0;
+
 	public:
 		struct PlatformImplementation;
 		inline static uptr<PlatformImplementation> impl = nullptr;