diff --git a/src/Canvas/gui_mgr.cxx b/src/Canvas/gui_mgr.cxx
index 160671eff..91424d9b2 100644
--- a/src/Canvas/gui_mgr.cxx
+++ b/src/Canvas/gui_mgr.cxx
@@ -345,7 +345,7 @@ bool GUIMgr::handleMouse(const osgGA::GUIEventAdapter& ea)
         static_cast<WindowUserData*>(layer->getChild(j)->getUserData())
           ->window.lock();
 
-      if( !window->isCapturingEvents() )
+      if( !window->isCapturingEvents() || !window->isVisible() )
         continue;
 
       float margin = window->isResizable() ? resize_margin_pos : 0;
diff --git a/src/Canvas/window.cxx b/src/Canvas/window.cxx
index e47535bfc..126212aa7 100644
--- a/src/Canvas/window.cxx
+++ b/src/Canvas/window.cxx
@@ -109,6 +109,12 @@ namespace canvas
     return _image.getSrcCanvas();
   }
 
+  //----------------------------------------------------------------------------
+  bool Window::isVisible() const
+  {
+    return _image.isVisible();
+  }
+
   //----------------------------------------------------------------------------
   bool Window::isResizable() const
   {
diff --git a/src/Canvas/window.hxx b/src/Canvas/window.hxx
index 00eb58737..44bfafaea 100644
--- a/src/Canvas/window.hxx
+++ b/src/Canvas/window.hxx
@@ -56,6 +56,7 @@ namespace canvas
       void setCanvas(simgear::canvas::CanvasPtr canvas);
       simgear::canvas::CanvasWeakPtr getCanvas() const;
 
+      bool isVisible() const;
       bool isResizable() const;
       bool isCapturingEvents() const;