text: #ifndef LIBTGVOIP_WINDOWS_SPECIFIC_H
  #define LIBTGVOIP_WINDOWS_SPECIFIC_H
  
  #include <string>
  #include <Windows.h>
  
  namespace tgvoip{
  
  	class WindowsSpecific{
  	public:
  		static std::string GetErrorMessage(DWORD code);
  	};
  
  }
  
  #endif // LIBTGVOIP_WINDOWS_SPECIFIC_H