> If you *want* to explicitly trigger a widget's callback
> programmatically, then you just do:
>
> widget->do_callback(...);
>
> Passing appropriate parameters, and the widget will execute its callback
> as if it were clicked on.
>
Works great, thank you. I came up with a slightly improved version:
int
Slider::handle(int ev)
{
// do the base-class actions
int res = Fl_Slider::handle(ev);
// now check for wheel-mouse events & if we are below the pointer
if (ev == FL_MOUSEWHEEL && this == Fl::belowmouse())
{
// for wheel - use dy
int dy = Fl::event_dy();
double v1 = value(); // current value
if (v1 == clamp(increment(v1, dy))) // save midi bandwidth :)
return 1;
v1 = increment(v1, dy); // change
value(v1); // update widget
do_callback(); // trigger callback
return 1; // say we ate this event
}
return res;
} // handle
(I also backported FLTK 1.1.9 to Debian/etch, anyone interested?) *Happy* :)
Jan
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