evaluate
Description:
Evaluates the watched expression and on success stores the result in `value`.
This is equivalent to calling [method@Gtk.Expression.evaluate] with the expression and this pointer originally used to create `watch`.
Parameters:
this |
a `GtkExpressionWatch` |
value |
an empty `GValue` to be set |
Returns:
`TRUE` if the expression could be evaluated and `value` was set |