diff --git a/include/IrrlichtDevice.h b/include/IrrlichtDevice.h
index 43107eb5..b967d70b 100644
--- a/include/IrrlichtDevice.h
+++ b/include/IrrlichtDevice.h
@@ -156,6 +156,12 @@ namespace irr
 		/** \return True if window is minimized. */
 		virtual bool isWindowMinimized() const = 0;
 
+		//! Checks if the Irrlicht window is maximized
+		//! Only fully works on SDL. Returns false, or the last value set via
+		//! maximizeWindow() and restoreWindow(), on other backends.
+		/** \return True if window is maximized. */
+		virtual bool isWindowMaximized() const = 0;
+
 		//! Checks if the Irrlicht window is running in fullscreen mode
 		/** \return True if window is fullscreen. */
 		virtual bool isFullscreen() const = 0;
diff --git a/include/SIrrCreationParameters.h b/include/SIrrCreationParameters.h
index 66165732..f99fce58 100644
--- a/include/SIrrCreationParameters.h
+++ b/include/SIrrCreationParameters.h
@@ -30,6 +30,7 @@ namespace irr
 			Bits(32),
 			ZBufferBits(24),
 			Fullscreen(false),
+			WindowMaximized(false),
 			WindowResizable(2),
 			Stencilbuffer(true),
 			Vsync(false),
@@ -73,6 +74,7 @@ namespace irr
 			Bits = other.Bits;
 			ZBufferBits = other.ZBufferBits;
 			Fullscreen = other.Fullscreen;
+			WindowMaximized = other.WindowMaximized;
 			WindowResizable = other.WindowResizable;
 			Stencilbuffer = other.Stencilbuffer;
 			Vsync = other.Vsync;
@@ -127,6 +129,9 @@ namespace irr
 		/** Otherwise the device runs in windowed mode. Default: false. */
 		bool Fullscreen;
 
+		//! Maximised window. (Only supported on SDL.) Default: false
+		bool WindowMaximized;
+
 		//! Should a non-fullscreen window be resizable.
 		/** Might not be supported by all devices. Ignored when Fullscreen is true.
 		Values: 0 = not resizable, 1 = resizable, 2 = system decides default itself
diff --git a/source/Irrlicht/CIrrDeviceLinux.cpp b/source/Irrlicht/CIrrDeviceLinux.cpp
index 91d1e470..b447015b 100644
--- a/source/Irrlicht/CIrrDeviceLinux.cpp
+++ b/source/Irrlicht/CIrrDeviceLinux.cpp
@@ -118,7 +118,7 @@ CIrrDeviceLinux::CIrrDeviceLinux(const SIrrlichtCreationParameters& param)
 	currentTouchedCount(0),
 #endif
 	Width(param.WindowSize.Width), Height(param.WindowSize.Height),
-	WindowHasFocus(false), WindowMinimized(false),
+	WindowHasFocus(false), WindowMinimized(false), WindowMaximized(param.WindowMaximized),
 	ExternalWindow(false), AutorepeatSupport(0)
 {
 	#ifdef _DEBUG
@@ -168,6 +168,9 @@ CIrrDeviceLinux::CIrrDeviceLinux(const SIrrlichtCreationParameters& param)
 		return;
 
 	createGUIAndScene();
+
+	if (param.WindowMaximized)
+		maximizeWindow();
 }
 
 
@@ -1200,6 +1203,13 @@ bool CIrrDeviceLinux::isWindowMinimized() const
 }
 
 
+//! returns last state from maximizeWindow() and restoreWindow()
+bool CIrrDeviceLinux::isWindowMaximized() const
+{
+	return WindowMaximized;
+}
+
+
 //! returns color format of the window.
 video::ECOLOR_FORMAT CIrrDeviceLinux::getColorFormat() const
 {
@@ -1284,6 +1294,8 @@ void CIrrDeviceLinux::maximizeWindow()
 	}
 
 	XMapWindow(XDisplay, XWindow);
+
+	WindowMaximized = true;
 #endif
 }
 
@@ -1310,6 +1322,8 @@ void CIrrDeviceLinux::restoreWindow()
 	}
 
 	XMapWindow(XDisplay, XWindow);
+
+	WindowMaximized = false;
 #endif
 }
 
diff --git a/source/Irrlicht/CIrrDeviceLinux.h b/source/Irrlicht/CIrrDeviceLinux.h
index fe1ede03..c456a1a7 100644
--- a/source/Irrlicht/CIrrDeviceLinux.h
+++ b/source/Irrlicht/CIrrDeviceLinux.h
@@ -64,6 +64,9 @@ namespace irr
 		//! returns if window is minimized.
 		bool isWindowMinimized() const override;
 
+		//! returns last state from maximizeWindow() and restoreWindow()
+		bool isWindowMaximized() const override;
+
 		//! returns color format of the window.
 		video::ECOLOR_FORMAT getColorFormat() const override;
 
@@ -415,6 +418,7 @@ namespace irr
 		u32 Width, Height;
 		bool WindowHasFocus;
 		bool WindowMinimized;
+		bool WindowMaximized;
 		bool ExternalWindow;
 		int AutorepeatSupport;
 
diff --git a/source/Irrlicht/CIrrDeviceSDL.cpp b/source/Irrlicht/CIrrDeviceSDL.cpp
index 8452c6b9..83c763c6 100644
--- a/source/Irrlicht/CIrrDeviceSDL.cpp
+++ b/source/Irrlicht/CIrrDeviceSDL.cpp
@@ -111,7 +111,7 @@ CIrrDeviceSDL::CIrrDeviceSDL(const SIrrlichtCreationParameters& param)
 	Window((SDL_Window*)param.WindowId), SDL_Flags(0),
 	MouseX(0), MouseY(0), MouseXRel(0), MouseYRel(0), MouseButtonStates(0),
 	Width(param.WindowSize.Width), Height(param.WindowSize.Height),
-	Resizable(param.WindowResizable == 1 ? true : false), WindowMinimized(false)
+	Resizable(param.WindowResizable == 1 ? true : false)
 {
 	#ifdef _DEBUG
 	setDebugName("CIrrDeviceSDL");
@@ -139,10 +139,14 @@ CIrrDeviceSDL::CIrrDeviceSDL(const SIrrlichtCreationParameters& param)
 	// create keymap
 	createKeyMap();
 
-	if ( CreationParams.Fullscreen )
+	if (CreationParams.Fullscreen) {
 		SDL_Flags |= SDL_WINDOW_FULLSCREEN;
-	else if ( Resizable )
-		SDL_Flags |= SDL_WINDOW_RESIZABLE;
+	} else  {
+		if (Resizable)
+			SDL_Flags |= SDL_WINDOW_RESIZABLE;
+		if (CreationParams.WindowMaximized)
+			SDL_Flags |= SDL_WINDOW_MAXIMIZED;
+	}
 	if (CreationParams.DriverType == video::EDT_OPENGL)
 	{
 		SDL_Flags |= SDL_WINDOW_OPENGL;
@@ -160,6 +164,7 @@ CIrrDeviceSDL::CIrrDeviceSDL(const SIrrlichtCreationParameters& param)
 		createWindow();
 	}
 
+
 	SDL_VERSION(&Info.version);
 
 #ifndef _IRR_EMSCRIPTEN_PLATFORM_
@@ -636,12 +641,6 @@ bool CIrrDeviceSDL::run()
 		case SDL_WINDOWEVENT:
 			switch (SDL_event.window.event)
 			{
-			case SDL_WINDOWEVENT_MAXIMIZED:
-				WindowMinimized = true;
-				break;
-			case SDL_WINDOWEVENT_RESTORED:
-				WindowMinimized = false;
-				break;
 			case SDL_WINDOWEVENT_RESIZED:
 				if ((SDL_event.window.data1 != (int)Width) || (SDL_event.window.data2 != (int)Height))
 				{
@@ -862,16 +861,16 @@ void CIrrDeviceSDL::setResizable(bool resize)
 //! Minimizes window if possible
 void CIrrDeviceSDL::minimizeWindow()
 {
-	if (Window) {
+	if (Window)
 		SDL_MinimizeWindow(Window);
-	}
 }
 
 
 //! Maximize window
 void CIrrDeviceSDL::maximizeWindow()
 {
-	// do nothing
+	if (Window)
+		SDL_MaximizeWindow(Window);
 }
 
 //! Get the position of this window on screen
@@ -884,7 +883,13 @@ core::position2di CIrrDeviceSDL::getWindowPosition()
 //! Restore original window size
 void CIrrDeviceSDL::restoreWindow()
 {
-	// do nothing
+	if (Window)
+		SDL_RestoreWindow(Window);
+}
+
+bool CIrrDeviceSDL::isWindowMaximized() const
+{
+	return Window && (SDL_GetWindowFlags(Window) & SDL_WINDOW_MAXIMIZED) != 0;
 }
 
 bool CIrrDeviceSDL::isFullscreen() const
@@ -919,14 +924,14 @@ bool CIrrDeviceSDL::isWindowActive() const
 //! returns if window has focus.
 bool CIrrDeviceSDL::isWindowFocused() const
 {
-	return SDL_GetWindowFlags(Window) & SDL_WINDOW_INPUT_FOCUS;
+	return Window && (SDL_GetWindowFlags(Window) & SDL_WINDOW_INPUT_FOCUS) != 0;
 }
 
 
 //! returns if window is minimized.
 bool CIrrDeviceSDL::isWindowMinimized() const
 {
-	return WindowMinimized;
+	return Window && (SDL_GetWindowFlags(Window) & SDL_WINDOW_MINIMIZED) != 0;
 }
 
 
diff --git a/source/Irrlicht/CIrrDeviceSDL.h b/source/Irrlicht/CIrrDeviceSDL.h
index 5a38d774..29927182 100644
--- a/source/Irrlicht/CIrrDeviceSDL.h
+++ b/source/Irrlicht/CIrrDeviceSDL.h
@@ -76,6 +76,9 @@ namespace irr
 		//! Restores the window size.
 		void restoreWindow() override;
 
+		//! Checks if the window is maximized.
+		bool isWindowMaximized() const override;
+
 		//! Checks if the Irrlicht window is running in fullscreen mode
 		/** \return True if window is fullscreen. */
 		bool isFullscreen() const override;
@@ -283,7 +286,6 @@ namespace irr
 		u32 Width, Height;
 
 		bool Resizable;
-		bool WindowMinimized;
 
 		struct SKeyMap
 		{
diff --git a/source/Irrlicht/CIrrDeviceStub.cpp b/source/Irrlicht/CIrrDeviceStub.cpp
index 95e7c5d1..877a4bf3 100644
--- a/source/Irrlicht/CIrrDeviceStub.cpp
+++ b/source/Irrlicht/CIrrDeviceStub.cpp
@@ -272,6 +272,13 @@ void CIrrDeviceStub::setInputReceivingSceneManager(scene::ISceneManager* sceneMa
 }
 
 
+//! Checks if the window is maximized.
+bool CIrrDeviceStub::isWindowMaximized() const
+{
+	return false;
+}
+
+
 //! Checks if the window is running in fullscreen mode
 bool CIrrDeviceStub::isFullscreen() const
 {
diff --git a/source/Irrlicht/CIrrDeviceStub.h b/source/Irrlicht/CIrrDeviceStub.h
index c6e00593..5b7d92ff 100644
--- a/source/Irrlicht/CIrrDeviceStub.h
+++ b/source/Irrlicht/CIrrDeviceStub.h
@@ -94,6 +94,9 @@ namespace irr
 		//! Returns the operation system opertator object.
 		IOSOperator* getOSOperator() override;
 
+		//! Checks if the window is maximized.
+		bool isWindowMaximized() const override;
+
 		//! Checks if the window is running in fullscreen mode.
 		bool isFullscreen() const override;
 
@@ -103,41 +106,41 @@ namespace irr
 		//! Activate any joysticks, and generate events for them.
 		bool activateJoysticks(core::array<SJoystickInfo> & joystickInfo) override;
 
-        //! Activate accelerometer.
-        bool activateAccelerometer(float updateInterval = 0.016666f) override;
-        
-        //! Deactivate accelerometer.
-        bool deactivateAccelerometer() override;
-        
-        //! Is accelerometer active.
-        bool isAccelerometerActive() override;
-        
-        //! Is accelerometer available.
-        bool isAccelerometerAvailable() override;
-        
-        //! Activate gyroscope.
-        bool activateGyroscope(float updateInterval = 0.016666f) override;
-        
-        //! Deactivate gyroscope.
-        bool deactivateGyroscope() override;
-        
-        //! Is gyroscope active.
-        bool isGyroscopeActive() override;
-        
-        //! Is gyroscope available.
-        bool isGyroscopeAvailable() override;
-        
-        //! Activate device motion.
-        bool activateDeviceMotion(float updateInterval = 0.016666f) override;
-        
-        //! Deactivate device motion.
-        bool deactivateDeviceMotion() override;
-        
-        //! Is device motion active.
-        bool isDeviceMotionActive() override;
-        
-        //! Is device motion available.
-        bool isDeviceMotionAvailable() override;
+		//! Activate accelerometer.
+		bool activateAccelerometer(float updateInterval = 0.016666f) override;
+
+		//! Deactivate accelerometer.
+		bool deactivateAccelerometer() override;
+
+		//! Is accelerometer active.
+		bool isAccelerometerActive() override;
+
+		//! Is accelerometer available.
+		bool isAccelerometerAvailable() override;
+
+		//! Activate gyroscope.
+		bool activateGyroscope(float updateInterval = 0.016666f) override;
+
+		//! Deactivate gyroscope.
+		bool deactivateGyroscope() override;
+
+		//! Is gyroscope active.
+		bool isGyroscopeActive() override;
+
+		//! Is gyroscope available.
+		bool isGyroscopeAvailable() override;
+
+		//! Activate device motion.
+		bool activateDeviceMotion(float updateInterval = 0.016666f) override;
+
+		//! Deactivate device motion.
+		bool deactivateDeviceMotion() override;
+
+		//! Is device motion active.
+		bool isDeviceMotionActive() override;
+
+		//! Is device motion available.
+		bool isDeviceMotionAvailable() override;
 
 		//! Set the maximal elapsed time between 2 clicks to generate doubleclicks for the mouse. It also affects tripleclick behavior.
 		//! When set to 0 no double- and tripleclicks will be generated.
diff --git a/source/Irrlicht/CIrrDeviceWin32.cpp b/source/Irrlicht/CIrrDeviceWin32.cpp
index 0c513040..ddff014b 100644
--- a/source/Irrlicht/CIrrDeviceWin32.cpp
+++ b/source/Irrlicht/CIrrDeviceWin32.cpp
@@ -784,7 +784,8 @@ namespace irr
 //! constructor
 CIrrDeviceWin32::CIrrDeviceWin32(const SIrrlichtCreationParameters& params)
 : CIrrDeviceStub(params), HWnd(0), Resized(false),
-	ExternalWindow(false), Win32CursorControl(0), JoyControl(0)
+	ExternalWindow(false), Win32CursorControl(0), JoyControl(0),
+	WindowMaximized(params.WindowMaximized)
 {
 	#ifdef _DEBUG
 	setDebugName("CIrrDeviceWin32");
@@ -923,6 +924,9 @@ CIrrDeviceWin32::CIrrDeviceWin32(const SIrrlichtCreationParameters& params)
 
 	// inform driver about the window size etc.
 	resizeIfNecessary();
+
+	if (params.WindowMaximized)
+		maximizeWindow();
 }
 
 
@@ -1154,6 +1158,13 @@ bool CIrrDeviceWin32::isWindowMinimized() const
 }
 
 
+//! returns last state from maximizeWindow() and restoreWindow()
+bool CIrrDeviceWin32::isWindowMaximized() const
+{
+	return WindowMaximized;
+}
+
+
 //! switches to fullscreen
 bool CIrrDeviceWin32::switchToFullScreen()
 {
@@ -1278,6 +1289,8 @@ void CIrrDeviceWin32::maximizeWindow()
 	GetWindowPlacement(HWnd, &wndpl);
 	wndpl.showCmd = SW_SHOWMAXIMIZED;
 	SetWindowPlacement(HWnd, &wndpl);
+
+	WindowMaximized = true;
 }
 
 
@@ -1289,6 +1302,8 @@ void CIrrDeviceWin32::restoreWindow()
 	GetWindowPlacement(HWnd, &wndpl);
 	wndpl.showCmd = SW_SHOWNORMAL;
 	SetWindowPlacement(HWnd, &wndpl);
+
+	WindowMaximized = false;
 }
 
 core::position2di CIrrDeviceWin32::getWindowPosition()
diff --git a/source/Irrlicht/CIrrDeviceWin32.h b/source/Irrlicht/CIrrDeviceWin32.h
index 8cd324bc..4af8d027 100644
--- a/source/Irrlicht/CIrrDeviceWin32.h
+++ b/source/Irrlicht/CIrrDeviceWin32.h
@@ -57,6 +57,9 @@ namespace irr
 		//! returns if window is minimized
 		bool isWindowMinimized() const override;
 
+		//! returns last state from maximizeWindow() and restoreWindow()
+		bool isWindowMaximized() const override;
+
 		//! notifies the device that it should close itself
 		void closeDevice() override;
 
@@ -413,6 +416,8 @@ namespace irr
 		CCursorControl* Win32CursorControl;
 
 		SJoystickWin32Control* JoyControl;
+
+		bool WindowMaximized;
 	};
 
 } // end namespace irr