Sets the text of self.
If propertyGtk.CheckButton:use-underline is true, an underscore in label is interpreted as mnemonic indicator, see gtk.check_button.CheckButton.setUseUnderline for details on this behavior.
The text shown next to the indicator, or null to show no text
Sets the text of self.
If propertyGtk.CheckButton:use-underline is true, an underscore in label is interpreted as mnemonic indicator, see gtk.check_button.CheckButton.setUseUnderline for details on this behavior.