GtkWindownew

Creates a new GtkWindow, which is a toplevel window that can contain other widgets. Nearly always, the type of the window should be #GTK_WINDOW_TOPLEVEL. If you’re implementing something like a popup menu from scratch (which is a bad idea, just use GtkMenu), you might use #GTK_WINDOW_POPUP. #GTK_WINDOW_POPUP is not for dialogs, though in some other toolkits dialogs are called “popups”. In GTK+, #GTK_WINDOW_POPUP means a pop-up menu or pop-up tooltip. On X11, popup windows are not controlled by the [window manager][gtk-X11-arch].

If you simply want an undecorated window (no window borders), use gtk_window_set_decorated(), don’t use #GTK_WINDOW_POPUP.

All top-level windows created by gtk_window_new() are stored in an internal top-level window list. This list can be obtained from gtk_window_list_toplevels(). Due to Gtk+ keeping a reference to the window internally, gtk_window_new() does not return a reference to the caller.

To delete a GtkWindow, call gtk_widget_destroy().