Updates an array of accessible properties.
This function should be called by `GtkWidget` types whenever an accessible property change must be communicated to assistive technologies.
This function is meant to be used by language bindings.
| this |
a `GtkAccessible` |
| properties |
an array of `GtkAccessibleProperty` |
| values |
an array of `GValues`, one for each property |
| n_properties |
the number of accessible properties to set |