Gtk.OffscreenWindow.prototype.get_pixbuf

function get_pixbuf():GdkPixbuf.Pixbuf {
    // Gjs wrapper for gtk_offscreen_window_get_pixbuf()
}

Retrieves a snapshot of the contained widget in the form of a GdkPixbuf.Pixbuf. This is a new pixbuf with a reference count of 1, and the application should unreference it once it is no longer needed.

Since 2.20