EVENT_OBJECT_STATECHANGE on <div#treeitem> role=ROLE_SYSTEM_OUTLINEITEM name="Treeitem" MIXED IA2_STATE_CHECKABLE level=1 PosInSet=1 SetSize=1
EVENT_OBJECT_STATECHANGE on <input#c> role=ROLE_SYSTEM_CHECKBUTTON name="My Checkbox" MIXED,FOCUSABLE IA2_STATE_CHECKABLE