Menu fix by CuteAlien.

Bug with double mouse events sent to user receiver, reported by Xplod
Documentation error in IVideoDriver.h

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1043 dfc29bdd-3216-0410-991c-e03cc46cb475

include/IVideoDriver.h

@@ -595,7 +595,7 @@ namespace video
 		virtual u32 getDynamicLightCount() const = 0;
 
 		//! Returns light data which was previously set by IVideoDriver::addDynamicLight().
-		/** \param idx: Zero based index of the light. Must be greater than 0 and smaller
+		/** \param idx: Zero based index of the light. Must be 0 or greater and smaller
 		than IVideoDriver()::getDynamicLightCount.
 		\return Light data. */
 		virtual const SLight& getDynamicLight(u32 idx) const = 0;

source/Irrlicht/CGUIEnvironment.cpp

@@ -362,8 +362,11 @@ void CGUIEnvironment::clear()
 //! called by ui if an event happened.
 bool CGUIEnvironment::OnEvent(const SEvent& event)
 {
-	if (UserReceiver && (event.EventType != EET_GUI_EVENT || event.GUIEvent.Caller != this))
+	if (UserReceiver && (event.EventType != EET_MOUSE_INPUT_EVENT) &&
+		(event.EventType != EET_GUI_EVENT || event.GUIEvent.Caller != this))
+	{
 		return UserReceiver->OnEvent(event);
+	}
 
 	return false;
 }

source/Irrlicht/CGUIMenu.cpp

@@ -119,10 +119,11 @@ bool CGUIMenu::OnEvent(const SEvent& event)
 			if (!Environment->hasFocus(this))
 			{
 				Environment->setFocus(this);
-				if (Parent)
-					Parent->bringToFront(this);
 			}
 
+			if (Parent)
+				Parent->bringToFront(this); 
+
 			core::position2d<s32> p(event.MouseInput.X, event.MouseInput.Y);
 			bool shouldCloseSubMenu = hasOpenSubMenu();
 			if (!AbsoluteClippingRect.isPointInside(p))