func (v *TextTagTable) Lookup(name string) (*TextTag, error) {
	cname := C.CString(name)
	defer C.free(unsafe.Pointer(cname))
	c := C.gtk_text_tag_table_lookup(v.native(), (*C.gchar)(cname))
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapTextTag(glib.Take(unsafe.Pointer(c))), nil
}
func (v *TextTagTable) Lookup(name string) (*TextTag, error) {
	cname := C.CString(name)
	defer C.free(unsafe.Pointer(cname))
	c := C.gtk_text_tag_table_lookup(v.native(), (*C.gchar)(cname))
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapTextTag(glib.Take(unsafe.Pointer(c))), nil
}
// Lookup() is a wrapper around gtk_text_tag_table_lookup().