# File lib/rubygame/event.rb, line 275 def initialize(pos,button) @pos = pos if button.kind_of? Integer @button = button @string = Rubygame::Mouse::MOUSE2STR[button] #a string or nil elsif key.kind_of? String @button = Rubygame::Mouse::STR2MOUSE[key] if @button != nil @string = button else raise(ArgumentError,"First argument of MouseDownEvent.new() must be an Integer Mouse button indentifier (like MOUSE_LEFT) or a String (like \"left\"). Got %s (%s)"%[button,button.class]) end end end