This got in the way of allowing to move a camera with right-mouse-button while having a context menu.
Hard to tell which way is "more" correct as this break of behavior probably can also mess up some situations.
There also would be 3rd option of only catching the event when highlighting happens.
Anyway - usually if this should be caught it should be caught for all ui elements and people will check focused or hovered.
git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6412 dfc29bdd-3216-0410-991c-e03cc46cb475
