OSG&OSGEarth中文處理方法

std::string StringToUTF8(const std::string& str)
{
	std::wstring ansiStr;
	{
		int nLen = ::MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.length(), NULL, 0);

		WCHAR* buffer = new WCHAR[nLen + 1];
		::ZeroMemory(buffer, sizeof(WCHAR)* (nLen + 1));

		::MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.length(), buffer, nLen);

		ansiStr = buffer;
		delete[] buffer;
	}
	std::string utf8Str;
	{
		int nLen = ::WideCharToMultiByte(CP_UTF8, 0, ansiStr.c_str(), -1, NULL, 0, NULL, NULL);

		char* buffer = new char[nLen + 1];
		::ZeroMemory(buffer, nLen + 1);

		::WideCharToMultiByte(CP_UTF8, 0, ansiStr.c_str(), -1, buffer, nLen, NULL, NULL);

		utf8Str = buffer;
		delete[] buffer;
	}
	return utf8Str; 
}

測試效果