Warning
gtk_action_set_is_important has been deprecated since version 3.10 and should not be used in newly-written code. Use GAction instead, and control and monitor whether
labels are shown directly
Sets whether the action is important, this attribute is used
primarily by toolbar items to decide whether to show a label
or not.
Since 2.16
Warning gtk_action_set_is_important has been deprecated since version 3.10 and should not be used in newly-written code. Use GAction instead, and control and monitor whether labels are shown directly Sets whether the action is important, this attribute is used primarily by toolbar items to decide whether to show a label or not. Since 2.16