Function gtk4_sys::gtk_font_dialog_choose_font

pub unsafe extern "C" fn gtk_font_dialog_choose_font(
    self_: *mut GtkFontDialog,
    parent: *mut GtkWindow,
    initial_value: *mut PangoFontDescription,
    cancellable: *mut GCancellable,
    callback: GAsyncReadyCallback,
    user_data: gpointer
)

Available on crate feature v4_10 only.