Sets the contents of a G_TYPE_BOXED derived #GValue to v_boxed and takes over the ownership of the caller’s reference to v_boxed; the caller doesn’t have to unref it any more.
duplicated unowned boxed value to be set
Sets the contents of a G_TYPE_BOXED derived #GValue to v_boxed and takes over the ownership of the caller’s reference to v_boxed; the caller doesn’t have to unref it any more.