diff --git a/Siv3D/include/Siv3D/Cursor.hpp b/Siv3D/include/Siv3D/Cursor.hpp
index a10f447d2..6e372d106 100644
--- a/Siv3D/include/Siv3D/Cursor.hpp
+++ b/Siv3D/include/Siv3D/Cursor.hpp
@@ -139,6 +139,15 @@ namespace s3d
 		/// @return 適用されているカメラ座標変換
 		[[nodiscard]]
 		const Mat3x2& GetCameraTransform() noexcept;
+
+		/// @brief マウスカーソルのキャプチャ状態を設定します。
+		/// @param captured キャプチャ状態にする場合 true, 解除する場合は false
+		void SetCapture(bool captured) noexcept;
+
+		/// @brief マウスカーソルのキャプチャ状態を返します。
+		/// @return マウスカーソルがキャプチャされている場合 true, それ以外の場合は false
+		[[nodiscard]]
+		bool IsCaptured() noexcept;
 	}
 }
 
diff --git a/Siv3D/src/Siv3D-Platform/Linux/Siv3D/Cursor/CCursor.cpp b/Siv3D/src/Siv3D-Platform/Linux/Siv3D/Cursor/CCursor.cpp
index 2d5b1f5b5..a4e484fd2 100644
--- a/Siv3D/src/Siv3D-Platform/Linux/Siv3D/Cursor/CCursor.cpp
+++ b/Siv3D/src/Siv3D-Platform/Linux/Siv3D/Cursor/CCursor.cpp
@@ -287,4 +287,14 @@ namespace s3d
 			m_requestedCursor = it->second.get();
 		}
 	}
+
+	void CCursor::setCapture(const bool captured) noexcept
+	{
+		m_captured = captured;
+	}
+
+	bool CCursor::isCaptured() const noexcept
+	{
+		return m_captured;
+	}
 }
diff --git a/Siv3D/src/Siv3D-Platform/Linux/Siv3D/Cursor/CCursor.hpp b/Siv3D/src/Siv3D-Platform/Linux/Siv3D/Cursor/CCursor.hpp
index 0ecc16d5b..96cc3c260 100644
--- a/Siv3D/src/Siv3D-Platform/Linux/Siv3D/Cursor/CCursor.hpp
+++ b/Siv3D/src/Siv3D-Platform/Linux/Siv3D/Cursor/CCursor.hpp
@@ -22,31 +22,6 @@ namespace s3d
 {
 	class CCursor final : public ISiv3DCursor
 	{
-	private:
-
-		GLFWwindow* m_window = nullptr;
-
-		CursorState m_state;
-
-		Mat3x2 m_transformLocal		= Mat3x2::Identity();
-		Mat3x2 m_transformCamera	= Mat3x2::Identity();
-		Mat3x2 m_transformScreen	= Mat3x2::Identity();
-		Mat3x2 m_transformAll		= Mat3x2::Identity();
-		Mat3x2 m_transformAllInv	= Mat3x2::Identity();	
-
-		bool m_clipToWindow = false;
-
-		static void CursorDeleter(GLFWcursor* h)
-		{
-			::glfwDestroyCursor(h);
-		}
-
-		std::array<GLFWcursor*, 11> m_systemCursors;
-		GLFWcursor* m_currentCursor = nullptr;
-		GLFWcursor* m_defaultCursor = nullptr;
-		GLFWcursor* m_requestedCursor = nullptr;
-		HashTable<String, unique_resource<GLFWcursor*, decltype(&CursorDeleter)>> m_customCursors;
-
 	public:
 
 		CCursor();
@@ -84,5 +59,36 @@ namespace s3d
 		bool registerCursor(StringView name, const Image& image, Point hotSpot) override;
 
 		void requestStyle(StringView name) override;
+
+		void setCapture(bool captured) noexcept override;
+
+		bool isCaptured() const noexcept override;
+
+	private:
+
+		GLFWwindow* m_window = nullptr;
+
+		CursorState m_state;
+
+		Mat3x2 m_transformLocal		= Mat3x2::Identity();
+		Mat3x2 m_transformCamera	= Mat3x2::Identity();
+		Mat3x2 m_transformScreen	= Mat3x2::Identity();
+		Mat3x2 m_transformAll		= Mat3x2::Identity();
+		Mat3x2 m_transformAllInv	= Mat3x2::Identity();	
+
+		bool m_clipToWindow = false;
+
+		static void CursorDeleter(GLFWcursor* h)
+		{
+			::glfwDestroyCursor(h);
+		}
+
+		std::array<GLFWcursor*, 11> m_systemCursors;
+		GLFWcursor* m_currentCursor = nullptr;
+		GLFWcursor* m_defaultCursor = nullptr;
+		GLFWcursor* m_requestedCursor = nullptr;
+		HashTable<String, unique_resource<GLFWcursor*, decltype(&CursorDeleter)>> m_customCursors;
+		
+		bool m_captured = false;
 	};
 }
diff --git a/Siv3D/src/Siv3D-Platform/Web/Siv3D/Cursor/CCursor.cpp b/Siv3D/src/Siv3D-Platform/Web/Siv3D/Cursor/CCursor.cpp
index cb53d8a00..90ae202b2 100644
--- a/Siv3D/src/Siv3D-Platform/Web/Siv3D/Cursor/CCursor.cpp
+++ b/Siv3D/src/Siv3D-Platform/Web/Siv3D/Cursor/CCursor.cpp
@@ -299,4 +299,14 @@ namespace s3d
 			// m_requestedCursor = it->second.get();
 		}
 	}
+
+	void CCursor::setCapture(const bool captured) noexcept
+	{
+		m_captured = captured;
+	}
+
+	bool CCursor::isCaptured() const noexcept
+	{
+		return m_captured;
+	}
 }
diff --git a/Siv3D/src/Siv3D-Platform/Web/Siv3D/Cursor/CCursor.hpp b/Siv3D/src/Siv3D-Platform/Web/Siv3D/Cursor/CCursor.hpp
index 34b34bb89..1960b15fc 100644
--- a/Siv3D/src/Siv3D-Platform/Web/Siv3D/Cursor/CCursor.hpp
+++ b/Siv3D/src/Siv3D-Platform/Web/Siv3D/Cursor/CCursor.hpp
@@ -22,31 +22,6 @@ namespace s3d
 {
 	class CCursor final : public ISiv3DCursor
 	{
-	private:
-
-		GLFWwindow* m_window = nullptr;
-
-		CursorState m_state;
-
-		Mat3x2 m_transformLocal		= Mat3x2::Identity();
-		Mat3x2 m_transformCamera	= Mat3x2::Identity();
-		Mat3x2 m_transformScreen	= Mat3x2::Identity();
-		Mat3x2 m_transformAll		= Mat3x2::Identity();
-		Mat3x2 m_transformAllInv	= Mat3x2::Identity();	
-
-		bool m_clipToWindow = false;
-
-		static void CursorDeleter(GLFWcursor* h)
-		{
-			::glfwDestroyCursor(h);
-		}
-
-		std::array<String, 11> m_systemCursors;
-		String m_currentCursor;
-		String m_defaultCursor;
-		String m_requestedCursor;
-		HashTable<String, unique_resource<GLFWcursor*, decltype(&CursorDeleter)>> m_customCursors;
-
 	public:
 
 		CCursor();
@@ -84,5 +59,36 @@ namespace s3d
 		bool registerCursor(StringView name, const Image& image, Point hotSpot) override;
 
 		void requestStyle(StringView name) override;
+
+		void setCapture(bool captured) noexcept override;
+
+		bool isCaptured() const noexcept override;
+
+	private:
+
+		GLFWwindow* m_window = nullptr;
+
+		CursorState m_state;
+
+		Mat3x2 m_transformLocal		= Mat3x2::Identity();
+		Mat3x2 m_transformCamera	= Mat3x2::Identity();
+		Mat3x2 m_transformScreen	= Mat3x2::Identity();
+		Mat3x2 m_transformAll		= Mat3x2::Identity();
+		Mat3x2 m_transformAllInv	= Mat3x2::Identity();	
+
+		bool m_clipToWindow = false;
+
+		static void CursorDeleter(GLFWcursor* h)
+		{
+			::glfwDestroyCursor(h);
+		}
+
+		std::array<String, 11> m_systemCursors;
+		String m_currentCursor;
+		String m_defaultCursor;
+		String m_requestedCursor;
+		HashTable<String, unique_resource<GLFWcursor*, decltype(&CursorDeleter)>> m_customCursors;
+		
+		bool m_captured = false;
 	};
 }
diff --git a/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Cursor/CCursor.cpp b/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Cursor/CCursor.cpp
index 6f9346c27..03a70fa89 100644
--- a/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Cursor/CCursor.cpp
+++ b/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Cursor/CCursor.cpp
@@ -401,6 +401,16 @@ namespace s3d
 		}
 	}
 
+	void CCursor::setCapture(const bool captured) noexcept
+	{
+		m_captured = captured;
+	}
+
+	bool CCursor::isCaptured() const noexcept
+	{
+		return m_captured;
+	}
+
 	void CCursor::handleMessage(const UINT message, const WPARAM, const LPARAM lParam)
 	{
 		Point newPosRaw;
diff --git a/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Cursor/CCursor.hpp b/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Cursor/CCursor.hpp
index 10cffed74..8ace1d8bc 100644
--- a/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Cursor/CCursor.hpp
+++ b/Siv3D/src/Siv3D-Platform/WindowsDesktop/Siv3D/Cursor/CCursor.hpp
@@ -24,36 +24,6 @@ namespace s3d
 {
 	class CCursor final : public ISiv3DCursor
 	{
-	private:
-
-		HWND m_hWnd = nullptr;
-
-		std::mutex m_clientPosBufferMutex;
-		Array<std::pair<uint64, Point>> m_clientPosBuffer;
-
-		CursorState m_state;
-
-		Mat3x2 m_transformLocal		= Mat3x2::Identity();
-		Mat3x2 m_transformCamera	= Mat3x2::Identity();
-		Mat3x2 m_transformScreen	= Mat3x2::Identity();
-		Mat3x2 m_transformAll		= Mat3x2::Identity();
-		Mat3x2 m_transformAllInv	= Mat3x2::Identity();
-
-		bool m_clippedToWindow = false;
-
-		static void CursorDeleter(HICON h)
-		{
-			::DestroyIcon(h);
-		}
-
-		std::array<HCURSOR, 11> m_systemCursors;
-		HICON m_currentCursor = nullptr;
-		HICON m_defaultCursor = nullptr;
-		HICON m_requestedCursor = nullptr;
-		HashTable<String, unique_resource<HICON, decltype(&CursorDeleter)>> m_customCursors;
-
-		void confineCursor();
-
 	public:
 
 		CCursor();
@@ -92,6 +62,10 @@ namespace s3d
 
 		void requestStyle(StringView name) override;
 
+		void setCapture(bool captured) noexcept override;
+
+		bool isCaptured() const noexcept override;
+
 		////////////////////////////////////////////////////////////////
 		//
 		//	Windows
@@ -99,6 +73,38 @@ namespace s3d
 		void handleMessage(UINT message, WPARAM wParam, LPARAM lParam);
 
 		void onSetCursor();
+
+	private:
+
+		HWND m_hWnd = nullptr;
+
+		std::mutex m_clientPosBufferMutex;
+		Array<std::pair<uint64, Point>> m_clientPosBuffer;
+
+		CursorState m_state;
+
+		Mat3x2 m_transformLocal = Mat3x2::Identity();
+		Mat3x2 m_transformCamera = Mat3x2::Identity();
+		Mat3x2 m_transformScreen = Mat3x2::Identity();
+		Mat3x2 m_transformAll = Mat3x2::Identity();
+		Mat3x2 m_transformAllInv = Mat3x2::Identity();
+
+		bool m_clippedToWindow = false;
+
+		static void CursorDeleter(HICON h)
+		{
+			::DestroyIcon(h);
+		}
+
+		std::array<HCURSOR, 11> m_systemCursors;
+		HICON m_currentCursor = nullptr;
+		HICON m_defaultCursor = nullptr;
+		HICON m_requestedCursor = nullptr;
+		HashTable<String, unique_resource<HICON, decltype(&CursorDeleter)>> m_customCursors;
+
+		bool m_captured = false;
+
+		void confineCursor();
 	};
 }
 
diff --git a/Siv3D/src/Siv3D-Platform/macOS/Siv3D/Cursor/CCursor.hpp b/Siv3D/src/Siv3D-Platform/macOS/Siv3D/Cursor/CCursor.hpp
index 83b75fc58..be7e49d82 100644
--- a/Siv3D/src/Siv3D-Platform/macOS/Siv3D/Cursor/CCursor.hpp
+++ b/Siv3D/src/Siv3D-Platform/macOS/Siv3D/Cursor/CCursor.hpp
@@ -22,31 +22,6 @@ namespace s3d
 {
 	class CCursor final : public ISiv3DCursor
 	{
-	private:
-		
-		GLFWwindow* m_window = nullptr;
-		
-		CursorState m_state;
-
-		Mat3x2 m_transformLocal		= Mat3x2::Identity();
-		Mat3x2 m_transformCamera	= Mat3x2::Identity();
-		Mat3x2 m_transformScreen	= Mat3x2::Identity();
-		Mat3x2 m_transformAll		= Mat3x2::Identity();
-		Mat3x2 m_transformAllInv	= Mat3x2::Identity();		
-
-		bool m_clipToWindow = false;
-
-		static void CursorDeleter(GLFWcursor* h)
-		{
-			::glfwDestroyCursor(h);
-		}
-		
-		std::array<GLFWcursor*, 11> m_systemCursors;
-		GLFWcursor* m_currentCursor;
-		GLFWcursor* m_defaultCursor;
-		GLFWcursor* m_requestedCursor;
-		HashTable<String, unique_resource<GLFWcursor*, decltype(&CursorDeleter)>> m_customCursors;
-		
 	public:
 		
 		void* m_event = nullptr;
@@ -86,5 +61,36 @@ namespace s3d
 		bool registerCursor(StringView name, const Image& image, Point hotSpot) override;
 
 		void requestStyle(StringView name) override;
+
+		void setCapture(bool captured) noexcept override;
+
+		bool isCaptured() const noexcept override;
+
+	private:
+		
+		GLFWwindow* m_window = nullptr;
+		
+		CursorState m_state;
+
+		Mat3x2 m_transformLocal		= Mat3x2::Identity();
+		Mat3x2 m_transformCamera	= Mat3x2::Identity();
+		Mat3x2 m_transformScreen	= Mat3x2::Identity();
+		Mat3x2 m_transformAll		= Mat3x2::Identity();
+		Mat3x2 m_transformAllInv	= Mat3x2::Identity();		
+
+		bool m_clipToWindow = false;
+
+		static void CursorDeleter(GLFWcursor* h)
+		{
+			::glfwDestroyCursor(h);
+		}
+		
+		std::array<GLFWcursor*, 11> m_systemCursors;
+		GLFWcursor* m_currentCursor = nullptr;
+		GLFWcursor* m_defaultCursor = nullptr;
+		GLFWcursor* m_requestedCursor = nullptr;
+		HashTable<String, unique_resource<GLFWcursor*, decltype(&CursorDeleter)>> m_customCursors;
+		
+		bool m_captured = false;
 	};
 }
diff --git a/Siv3D/src/Siv3D-Platform/macOS/Siv3D/Cursor/CCursor.mm b/Siv3D/src/Siv3D-Platform/macOS/Siv3D/Cursor/CCursor.mm
index 775b27e38..ac3a98c95 100644
--- a/Siv3D/src/Siv3D-Platform/macOS/Siv3D/Cursor/CCursor.mm
+++ b/Siv3D/src/Siv3D-Platform/macOS/Siv3D/Cursor/CCursor.mm
@@ -293,4 +293,14 @@ static Vec2 GetClientCursorPos(GLFWwindow* window)
 			m_requestedCursor = it->second.get();
 		}
 	}
+
+	void CCursor::setCapture(const bool captured) noexcept
+	{
+		m_captured = captured;
+	}
+
+	bool CCursor::isCaptured() const noexcept
+	{
+		return m_captured;
+	}
 }
diff --git a/Siv3D/src/Siv3D/Cursor/CCursor_Null.cpp b/Siv3D/src/Siv3D/Cursor/CCursor_Null.cpp
index 19588eb53..84bea6511 100644
--- a/Siv3D/src/Siv3D/Cursor/CCursor_Null.cpp
+++ b/Siv3D/src/Siv3D/Cursor/CCursor_Null.cpp
@@ -104,4 +104,14 @@ namespace s3d
 	{
 
 	}
+
+	void CCursor_Null::setCapture(const bool) noexcept
+	{
+
+	}
+
+	bool CCursor_Null::isCaptured() const noexcept
+	{
+		return false;
+	}
 }
diff --git a/Siv3D/src/Siv3D/Cursor/CCursor_Null.hpp b/Siv3D/src/Siv3D/Cursor/CCursor_Null.hpp
index f590ba33a..e9da7feef 100644
--- a/Siv3D/src/Siv3D/Cursor/CCursor_Null.hpp
+++ b/Siv3D/src/Siv3D/Cursor/CCursor_Null.hpp
@@ -63,5 +63,9 @@ namespace s3d
 		bool registerCursor(StringView name, const Image& image, Point hotSpot) override;
 
 		void requestStyle(StringView name) override;
+
+		void setCapture(bool captured) noexcept override;
+
+		bool isCaptured() const noexcept override;
 	};
 }
diff --git a/Siv3D/src/Siv3D/Cursor/ICursor.hpp b/Siv3D/src/Siv3D/Cursor/ICursor.hpp
index d023349c9..ffd42762c 100644
--- a/Siv3D/src/Siv3D/Cursor/ICursor.hpp
+++ b/Siv3D/src/Siv3D/Cursor/ICursor.hpp
@@ -59,5 +59,9 @@ namespace s3d
 		virtual bool registerCursor(StringView name, const Image& image, Point hotSpot) = 0;
 
 		virtual void requestStyle(StringView name) = 0;
+
+		virtual void setCapture(bool captured) noexcept = 0;
+
+		virtual bool isCaptured() const noexcept = 0;
 	};
 }
diff --git a/Siv3D/src/Siv3D/Cursor/SivCursor.cpp b/Siv3D/src/Siv3D/Cursor/SivCursor.cpp
index 81e9e34f2..76eaf85df 100644
--- a/Siv3D/src/Siv3D/Cursor/SivCursor.cpp
+++ b/Siv3D/src/Siv3D/Cursor/SivCursor.cpp
@@ -135,6 +135,16 @@ namespace s3d
 			return SIV3D_ENGINE(Cursor)->getCameraTransform();
 		}
 
+		void SetCapture(const bool captured) noexcept
+		{
+			SIV3D_ENGINE(Cursor)->setCapture(captured);
+		}
+
+		bool IsCaptured() noexcept
+		{
+			return SIV3D_ENGINE(Cursor)->isCaptured();
+		}
+
 		namespace Internal
 		{
 			void SetLocalTransform(const Mat3x2& matrix)