Demarshals a value from a string.
Unlike [method@Gtk.Builder.value_from_string], this function takes a `GType` instead of `GParamSpec`.
Calls Value on the value argument, so it need not
be initialised beforehand.
Upon errors false will be returned and throws will be assigned a `GError` from the gtk_builder_error domain.
| this |
a `GtkBuilder` |
| type |
the `GType` of the value |
| value |
the `GValue` to store the result in |
| string |
the string representation of the value |
|
true on success |