Returns the ellipsize mode used for tool_item. Custom subclasses of #GtkToolItem should call this function to find out how text should be ellipsized.
a #PangoEllipsizeMode indicating how text in tool_item should be ellipsized.
Returns the ellipsize mode used for tool_item. Custom subclasses of #GtkToolItem should call this function to find out how text should be ellipsized.