Re: Why button press event only reacts on double click?

[Chris Vine <vine35792468 gmail com>]

On Tue, 26 Dec 2017 10:56:34 +0100
Klaus Rudolph <lts-rudolph gmx de> wrote:
> The function "signal_button_press_event()" reacts only if I double
> click the button. Is it possible to react also on a single press
> event?
>
> #include <iostream>
> #include <gtkmm.h>
> #include <gtkmm/window.h>
>
> class ExampleWindow: public Gtk::Window
> {
>      Gtk::Button button;
>      public:
>      ExampleWindow(): button("Hallo")
>      {
>          add(button);
>          button.signal_button_press_event().connect( [this]( 
> GdkEventButton* ev)->bool{ std::cout << "Press" << std::endl; return 
> true; });
>      }
> };
>
>
> int main(int argc, char* argv[])
> {
>      Gtk::Main kit(argc, argv);
>
>      ExampleWindow window;
>
>      window.show_all_children();
>      Gtk::Main::run(window);
>      return 0;
> }

button-press-event is a GDK event and is concerned principally with
mouse buttons. You want the clicked signal.