[Gtk4]How to set the default font size of the Textview?

[1111 (Zhanghua)]

How to set the default font size of the Textview?

[ebassi (Emmanuele Bassi)]

Load a CSS fragment like:

textview { font-size: 16pt; }

using a GtkCssProvider.

[1111 (Zhanghua)]

Thank you!!! It works!
And is there the GtkSourceView5mm for CPP?
Or Any guide to use the GtkSourceView5of c version in the Gtkmm4?

[ebassi (Emmanuele Bassi)]

@1111

And is there the GtkSourceView5mm for CPP?
Or Any guide to use the GtkSourceView5of c version in the Gtkmm4?

Not that I know of, but I have never used the C++ bindings.

You may want to ask on the gtkmm mailing list.

[1111 (Zhanghua)]

Gotcha!
Thank you for your reply again.

[1111 (Zhanghua)]

We can use c by the wrap in c++
exp:
GtkButton cbutton = (GtkButton)gtk_button_new_with_label (“Hello, World!”);
Gtk::Button* button = Glib::wrap(cbutton);
m_Box.append( *button );