diff --git a/include/TGUI/Backend/Window/BackendGui.hpp b/include/TGUI/Backend/Window/BackendGui.hpp
index 45e9535f0..9a0e7a96d 100644
--- a/include/TGUI/Backend/Window/BackendGui.hpp
+++ b/include/TGUI/Backend/Window/BackendGui.hpp
@@ -700,6 +700,11 @@ TGUI_MODULE_EXPORT namespace tgui
         /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
         bool handleTwoFingerScroll(bool wasAlreadyScrolling);
 
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        // Updates internal window focus flag and emits signal if flag state was changed.
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        void updateWindowFocusState(bool windowFocused);
+
         /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
         // Updates the view and changes the size of the root container when needed.
         // Derived classes should update m_framebufferSize in this function and then call this function from the base class.
@@ -711,6 +716,8 @@ TGUI_MODULE_EXPORT namespace tgui
     public:
 
         SignalFloatRect onViewChange = {"ViewChanged"}; //!< The view was changed. Optional parameter: new view rectangle
+        Signal onWindowFocus = {"Focused"}; //!< The window was focused
+        Signal onWindowUnfocus = {"Unfocused"}; //!< The window was unfocused
 
 
         /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/src/Backend/Window/BackendGui.cpp b/src/Backend/Window/BackendGui.cpp
index 657d83cd9..03544cd6f 100644
--- a/src/Backend/Window/BackendGui.cpp
+++ b/src/Backend/Window/BackendGui.cpp
@@ -186,13 +186,13 @@ namespace tgui
             }
             case Event::Type::LostFocus:
             {
-                m_windowFocused = false;
-                break;
+                updateWindowFocusState(false);
+                return true;
             }
             case Event::Type::GainedFocus:
             {
-                m_windowFocused = true;
-                break;
+                updateWindowFocusState(true);
+                return true;
             }
             case Event::Type::Resized:
             {
@@ -626,6 +626,20 @@ namespace tgui
 
     /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
+    void BackendGui::updateWindowFocusState(bool windowFocused)
+    {
+        if(m_windowFocused != windowFocused) {
+            m_windowFocused = windowFocused;
+            if(windowFocused) {
+                onWindowFocus.emit(m_container.get());
+            } else {
+                onWindowUnfocus.emit(m_container.get());
+            }
+        }
+    }
+
+    /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
     void BackendGui::updateContainerSize()
     {
         m_viewport.updateParentSize({static_cast<float>(m_framebufferSize.x), static_cast<float>(m_framebufferSize.y)});