Re: how to set a callback function to an icon in an entry ?

[Jonas Platte <jonasplatte gmail com>]

Looking at the documentation for GdkEventButton [1], it seems like it
lets you detect whether the icon was only clicked once, double-clicked
or activated in another way. If you only want a simple click handler, I
assume you can ignore the parameter, or if you want a bit cleaner code,
leave the parameter out of your method declaration entirely and use
sigc::hide [2] to make your functor compatible to the signal, e.g.:

  void MyClass::on_icon_release(Gtk::EntryIconPosition icon_position)
  {
    [...]
  }

  MyClass::MyClass
  {
    [...]

  entry->signal_icon_release().connect(sigc::hide<1>(
    sigc::mem_fun(this, &MyClass::on_icon_release)));
  }


[1]
https://developer.gnome.org/gdk3/stable/gdk3-Event-Structures.html#GdkEventButton

[2] https://developer.gnome.org/libsigc++/stable/group__hide.html

Am 22.01.2015 um 05:30 schrieb Nicolas Jäger:
> Hi,
>
> On Thu, 22 Jan 2015 02:23:30 +0100
> Jonas Platte <jonasplatte gmail com> wrote:
>
> > There are the methods signal_icon_press() and signal_icon_release()
> > [1] in Gtk::Entry (assuming that's what you're talking about). I
> > think you should be able to connect to one or both of them to create
> > a functioning "(secondary) icon clicked handler".
> >
> > [1]
> > https://developer.gnome.org/gtkmm/stable/classGtk_1_1Entry.html#ad39f745e170882bc165f962cce80e578
> that's exactly what I was looking for, thx. I have a question about the
> calback functions of these methods. The calback function need a
>
> const GdkEventButton*
>
> parameter. What is this ?
>
> regards,
> /nicoo
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