[ Version ( since = "2.4" ) ]
public void set_is_important (bool is_important)
Sets whether this should be considered important.
The ToolButton class uses this property to determine whether to show or hide its label when the toolbar style is gtk_toolbar_both_horiz. The result is that only tool buttons with the “is_important” property set have labels, an effect known as “priority text”
| this |
a ToolItem |
| is_important |
whether the tool item should be considered important |