> > It seems that a button's callback can't be attached > to pressing the enter key. Is that true?
Looks to me from the Fl_Button source, and from this documentation http://www.fltk.org/doc-1.1/Fl_Button.html#Fl_Button.when, that Fl_Button is not currently set up to respond to the enter key. However if you write a simple class inheriting from Fl_Button I think you can solve the problem easily. Heres a modified version of your example to demonstrate: #include <FL/Fl_Double_Window.H> #include <FL/Fl.H> #include <FL/Fl_Button.H> #include <FL/fl_ask.H> void btn_cb(Fl_Widget*, void*) { fl_alert("Hello"); } class mybutton : public Fl_Button{ public: mybutton(int x,int y,int w,int h,const char *n):Fl_Button(x,y,w,h,n){} int handle(int event){ if(event==FL_KEYDOWN) if(Fl::event_key()==FL_Enter) if(when()&FL_WHEN_ENTER_KEY_ALWAYS){ do_callback(); return 0; } return Fl_Button::handle(event); } }; int main() { Fl_Double_Window win(300, 300); //Fl_Button* btn = new Fl_Button(50, 50, 20, 100, "button"); mybutton *btn=new mybutton(50, 50, 20, 100, "button"); Fl_Button *btn2=new mybutton(120,50,20,100,"button 2"); win.end(); btn->callback(btn_cb); btn->when(FL_WHEN_ENTER_KEY_ALWAYS | FL_WHEN_RELEASE_ALWAYS); btn->take_focus(); win.show(); return Fl::run(); } _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
