Copying

• Programming with gtkmm 4
• The RefPtr smartpointer

You can copy RefPtrs, just like normal pointers. But unlike normal pointers, you don't need to worry about deleting the underlying instance.

auto refPixbuf = Gdk::Pixbuf::create_from_file(filename);
auto refPixbuf2 = refPixbuf;

Of course this means that you can store RefPtrs in standard containers, such as std::vector or std::list.

std::list<Glib::RefPtr<Gdk::Pixbuf>> listPixbufs;
auto refPixbuf = Gdk::Pixbuf::create_from_file(filename);
listPixbufs.push_back(refPixbuf);