Re: Add Gtk::TextView to Gtk::Grid

[Kjell Ahlstedt <kjellahlstedt gmail com>]

You have declared the TextView  as a local variable in the constructor. 
It will be deleted when the constructor finishes. You must either 
declared it in your window class, like the buttons in

https://gitlab.gnome.org/GNOME/gtkmm-documentation/-/blob/master/examples/book/grid/examplewindow.h

or create it with Gtk::make_managed() in the constructor, like the button in

https://gitlab.gnome.org/GNOME/gtkmm-documentation/-/blob/master/examples/book/scrolledwindow/examplewindow.cc

Den 2022-10-05 kl. 17:00, skrev Bill Greene via gtkmm-list:
> I am trying to add a TextView instance to a Grid. But when I display 
> the window, it is
> empty. The Grid examples I have seen add buttons to the grid and these 
> work fine
> for me. But I don't understand the difference between adding a button 
> and adding
> a TextView. If anyone can help me with this, I would appreciate it.
>
> Here is my sample code (part of the constructor for my window):
>
>   set_child(m_grid);
>   Gtk::TextView tc;
>   Glib::RefPtr<Gtk::TextBuffer> tb = Gtk::TextBuffer::create();
>   std::string msg("cell 1,1");
>   auto it = tb->insert(tb->begin(), msg);
>   tc.set_buffer(tb);
>   m_grid.attach(tc, 0, 0);
>   m_grid.set_visible();