[ Version ( since = "2.4" ) ]
public void set_label (string? label)
Sets label as the label used for the tool button.
The label property only has an effect if not overridden by a non- null label_widget property. If both the label_widget and label properties are null, the label is determined by the stock_id property. If the stock_id property is also null, this will not have a label.
| this | |
| label |
a string that will be used as label, or null. |