Hello
I try to list the awailable font-families.
If I open and close multiple windows ther is a critical error:
GLib-GObject-CRITICAL **: 15:22:32.722: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
This is the code, the error ocours even without the uncomented code:
#include <gtkmm/application.h>
#include <gtkmm/window.h>
#include <gtkmm/textview.h>
class Window: public Gtk::Window
{
public:
Window()
{
this->show();
this->set_child(this->text);
auto context = this->text.create_pango_context();
auto fontMap = context->get_font_map();
// auto fontList = fontMap->list_families();
// auto buffer = this->text.get_buffer();
// auto iter = buffer->get_iter_at_offset(0);
// for(const auto& fam : fontList)
// {
// iter = buffer->insert(iter,
// fam->get_name() + '\n');
// }
// }
private:
Gtk::TextView text;
};
auto main() -> int
{
std::vector<Window> windows;
auto app = Gtk::Application::create();
app->signal_activate().connect([&]
{
auto& w0 = windows.emplace_back();
app->add_window(w0);
auto& w1 = windows.emplace_back();
app->add_window(w1);
});
return app->run();
}
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