func (v *CssProvider) LoadFromData(data string) error {
	cdata := C.CString(data)
	defer C.free(unsafe.Pointer(cdata))
	var gerr *C.GError
	if C.gtk_css_provider_load_from_data(v.native(), (*C.gchar)(unsafe.Pointer(cdata)), C.gssize(len(data)), &gerr) == 0 {
		defer C.g_error_free(gerr)
		return errors.New(goString(gerr.message))
	}
	return nil
}
func (v *CssProvider) LoadFromData(data string) error {
	cdata := C.CString(data)
	defer C.free(unsafe.Pointer(cdata))
	var gerr *C.GError
	if C.gtk_css_provider_load_from_data(v.native(), (*C.gchar)(unsafe.Pointer(cdata)), C.gssize(len(data)), &gerr) == 0 {
		defer C.g_error_free(gerr)
		return errors.New(goString(gerr.message))
	}
	return nil
}
// LoadFromData is a wrapper around gtk_css_provider_load_from_data().