Jean-Pierre Lefebvre schrieb:
> Hello,
>
> I am currently facing an issue with callback functions and Fl_Input.
> I created a window, containing a Fl_Input object. I would like to run
> the callback function when this input field is selected, even if
> nothing changes in the field (simply to highlight some parts in my
> interface).
I think, you need to overwrite the handle():
class Fl_Selected_Input: public Fl_Input
{
public:
Fl_Selected_Input(int x, int y, int w, int h, const char* l= 0):
Fl_Input(x, y, w, h, l)
{}
virtual ~Fl_Selected_Input() {}
protected:
int handle(int event)
{
if (event== FL_FOCUS)
do_callback(this, (void*) "Focus");
else if (event== FL_UNFOCUS)
do_callback(this, (void*) "Unfocus");
Fl_Input::handle(event);
}
};
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