std::stringstream stringStreams;
std::ifstream fileStream(filePath.c_str());
stringStreams << fileStream.rdbuf();

std::string const &strValue = stringStreams.str();

size_t size = (size_t)fileStream.tellg();
char* buffer = new char[size];
fileStream.seekg(0, std::ios::beg);
fileStream.read(buffer, size);
select_pair pair = { 0, pgTextSize(pg) };

pgDelete(pg, &pair, best_way);
ConvertToUTF utf(strValue.c_str());
const wchar_t *convertedString = utf.getUTF16();

long length = wcslen(convertedString);

pgInsert(pg, (const pg_char_ptr)convertedString, length, CURRENT_POSITION,
        data_insert_mode, 0, best_way);
long text_length = pgTextSize(pg);
fileStream.close();
delete[] buffer;
long text_length = pgTextSize(pg);
pgSetSelection(pg, 0, 0, 0, 0);
pgPaginateNow(pg, text_length, TRUE);