Constification of getter return value.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2784 dfc29bdd-3216-0410-991c-e03cc46cb475

include/ICursorControl.h

@@ -57,7 +57,7 @@ namespace gui
 		//! Returns the current position of the mouse cursor.
 		/** \return Returns the current position of the cursor. The returned position
 		is the position of the mouse cursor in pixel units. */
-		virtual core::position2d<s32> getPosition() = 0;
+		virtual const core::position2d<s32>& getPosition() = 0;
 
 		//! Returns the current position of the mouse cursor.
 		/** \return Returns the current position of the cursor. The returned position

source/Irrlicht/CIrrDeviceConsole.h

@@ -153,7 +153,7 @@ namespace irr
 			}
 
 			//! Returns the current position of the mouse cursor.
-			virtual core::position2d<s32> getPosition()
+			virtual const core::position2d<s32>& getPosition()
 			{
 				return CursorPos;
 			}

source/Irrlicht/CIrrDeviceLinux.h

@@ -252,7 +252,7 @@ namespace irr
 			}
 
 			//! Returns the current position of the mouse cursor.
-			virtual core::position2d<s32> getPosition()
+			virtual const core::position2d<s32>& getPosition()
 			{
 				updateCursorPos();
 				return CursorPos;

source/Irrlicht/CIrrDeviceSDL.h

@@ -143,7 +143,7 @@ namespace irr
 			}
 
 			//! Returns the current position of the mouse cursor.
-			virtual core::position2d<s32> getPosition()
+			virtual const core::position2d<s32>& getPosition()
 			{
 				updateCursorPos();
 				return CursorPos;

source/Irrlicht/CIrrDeviceWin32.h

@@ -207,7 +207,7 @@ namespace irr
 			}
 
 			//! Returns the current position of the mouse cursor.
-			virtual core::position2d<s32> getPosition()
+			virtual const core::position2d<s32>& getPosition()
 			{
 				updateInternalCursorPosition();
 				return CursorPos;

source/Irrlicht/CIrrDeviceWinCE.h

@@ -162,7 +162,7 @@ namespace irr
 			}
 
 			//! Returns the current position of the mouse cursor.
-			virtual core::position2d<s32> getPosition()
+			virtual const core::position2d<s32>& getPosition()
 			{
 				updateInternalCursorPosition();
 				return CursorPos;