This is useful in language bindings where unknown #GValue types are not
supported. This function will convert the %GST_TYPE_ARRAY into a newly
allocated #GValueArray and return it through @array. Be aware that this is
slower then getting the #GValue directly.
%TRUE if the value could be set correctly. If there was no field
with @fieldname or the existing field did not contain a %GST_TYPE_ARRAY,
this function returns %FALSE.
This is useful in language bindings where unknown #GValue types are not supported. This function will convert the %GST_TYPE_ARRAY into a newly allocated #GValueArray and return it through @array. Be aware that this is slower then getting the #GValue directly.