getHexpandSet

Gets whether gtk_widget_set_hexpand() has been used to explicitly set the expand flag on this widget.

If property@Gtk.Widget:hexpand property is set, then it overrides any computed expand value based on child widgets. If hexpand is not set, then the expand value depends on whether any children of the widget would like to expand.

There are few reasons to use this function, but it’s here for completeness and consistency.