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.
2.20
See Implementation
Returns the ellipsize mode used for @tool_item. Custom subclasses of #GtkToolItem should call this function to find out how text should be ellipsized.