Fetches the text from the label of the button, as set by
gtk_button_set_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 gtk_button_new() to
use as a container.
Return: The text of the label widget. This string is owned
by the widget and must not be modified or freed.
Fetches the text from the label of the button, as set by gtk_button_set_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 gtk_button_new() to use as a container.
Return: The text of the label widget. This string is owned by the widget and must not be modified or freed.