The 'value-changed' signal is emitted when the current value
that represent the object changes. @value is the numerical
representation of this new value. @text is the human
readable text alternative of @value, and can be NULL if it is
not available. Note that if there is a textual description
associated with the new numeric value, that description
should be included regardless of whether or not it has also
changed.
The 'value-changed' signal is emitted when the current value that represent the object changes. @value is the numerical representation of this new value. @text is the human readable text alternative of @value, and can be NULL if it is not available. Note that if there is a textual description associated with the new numeric value, that description should be included regardless of whether or not it has also changed.