Sets the `GtkAdjustment` value.
The value is clamped to lie between [[email protected]:lower] and [[email protected]:upper].
Note that for adjustments which are used in a `GtkScrollbar`, the effective range of allowed values goes from [ [email protected]:lower] to [[email protected]:upper] - [[email protected]:page-size].
| this |
a `GtkAdjustment` |
| value |
the new value |