Fetches the text from a label widget.
This is including any embedded underlines indicating mnemonics and Pango markup, as set by [[email protected]_label]. If the label text has not been set the return value will be null. This will be the case if you create an empty button with Button to use as a container.
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a `GtkExpander` |
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The text of the label widget. This string is owned by the widget and must not be modified or freed. |