>>> I would like to cause a callback if I click anywhere on the >>> background of my window . Not just if I click on the closing-x >>> on the upper right corner. >>> How do I do that?
>> Derive your own subclassed widget. >> In the handle method, call the base class handle method and check >> the return value: >> - if it is non-zero, some widget has consumed the event so there >> is nothing more to do, simply return that value. >> - if it is zero, no one used the event, so check if it is the >> event that you are looking for. If so, just use do_callback() >> or some similar mechanism to invoke the requisite actions. Then >> return 1 to stop the event from propagating any further (since >> you have used it.) >> Something like that ought to work. > I'm really new in C++, so how do I call the handle method in my > subclass to get the return value? An example is worth a thousand words, and Greg's examples are great! http://seriss.com/people/erco/fltk/#PopupWindow http://seriss.com/people/erco/fltk/#DrawCoords and then there's the documentation: http://www.fltk.org/documentation.php/doc-1.1/subclassing.html#handle Hope that helps D. _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
