set_msg(x, y, bhelp, parent)
Instance Public methods
# CASE1 : command takes no arguemnt
bh = Tk::RbWidget::BalloonHelp.new(sb, :interval=>500,
:relief=>:ridge, :background=>'white',
:command=>proc{
y = TkWinfo.pointery(sb) - TkWinfo.rooty(sb)
bh.text "current index == #{sb.nearest(y)}"
})
# CASE2 : command takes 2 arguemnts
bh = Tk::RbWidget