Boost asio error when building class

I'm trying to feel my way through doing some network programming using the Boost:asio libraries. I've been using an asynchronous handler to transfer data from a given address and it works fine when I leverage asio as functions: ``` boost::asio::io_service io_service; boost::asio::ip::tcp::resolver resolver( io_service); boost::asio::ip::tcp::socket sock( io_service); boost::array < char, 4096 > buffer; void read_handler( const boost:: system:: error_code &ec, std:: size_t bytes_transferred) { if (! ec) { if (std::string(buffer.data(), bytes_transferred) == "$") { myss.str(std::string()); } myss << std::string(buffer.data(), bytes_transferred); if (int(buffer.data()[0]) == 10) { .... } std::cout << std::string(buffer.data(), bytes_transferred) ;//<< std::endl; sock.async_read_some( boost::asio::buffer( buffer), read_handler); } } void connect_handler( const boost::system::error_code &ec) { if (! ec) { boost::asio::write( sock, boost::asio::buffer( "GET / HTTP 1.1\r\nHost: www.google.com\r\n\r\n")); sock.async_read_some( boost::asio::buffer( buffer), read_handler); } } void resolve_handler( const boost::system::error_code &ec, boost:: asio::ip::tcp::resolver::iterator it) { if (! ec) { sock.async_connect(* it, connect_handler); } } ``` Now, I'm trying to integrate these functions into a class but Visual Studio keeps complaining about the way I'm implementing the functions in the class. ``` void MyClass::connect_handler( const boost::system::error_code &ec) { if (! ec) { //boost::asio::write( sock, boost::asio::buffer( // "GET / HTTP 1.1\r\nHost: www.highscore.de\r\n\r\n")); m_sock.async_read_some( boost::asio::buffer( m_buffer), read_handler); } } : error C3867: 'MyClass::read_handler': function call missing argument list; use '&MyClass::read_handler' to create a pointer to member: error C3867: 'MyClass::read_handler': function call missing argument list; use '&MyClass::read_handler' to create a pointer to member 2>'MyClass::connect_handler': function call missing argument list; use '&MyClass::connect_handler' to create a pointer to member 2> 2>Build FAILED. ``` Anyone got any pointers on what I'm doing wrong moving these into a class? I've tried implementing the recommend change in the error message, but it causes errors in the boost libraries themselves. ``` 2>C:\installs\Boost\include\boost-1_49\boost/asio/basic_stream_socket.hpp(785): error C2338: ReadHandler type requirements not met 2> : see reference to function template instantiation 'void boost::asio::basic_stream_socket<Protocol>::async_read_some<boost::asio::mutable_buffers_1,void(__thiscall MyClass::Sensor::* )(const boost::system::error_code &,size_t)>(const MutableBufferSequence &,const ReadHandler &)' being compiled 2> with 2> [ 2> Protocol=boost::asio::ip::tcp, 2> MutableBufferSequence=boost::asio::mutable_buffers_1, 2> ReadHandler=void (__thiscall MyClass::Sensor::* )(const boost::system::error_code &,size_t) 2> ] 2>C:\installs\Boost\include\boost-1_49\boost/asio/basic_stream_socket.hpp(785): error C2064: term does not evaluate to a function taking 2 arguments 2>C:\installs\Boost\include\boost-1_49\boost/asio/basic_socket.hpp(706): error C2338: ConnectHandler type requirements not met 2> : see reference to function template instantiation 'void boost::asio::basic_socket<Protocol,SocketService>::async_connect<void(__thiscall MyClass::Sensor::* )(const boost::system::error_code &)>(const boost::asio::ip::basic_endpoint<InternetProtocol> &,const ConnectHandler &)' being compiled 2> with 2> [ 2> Protocol=boost::asio::ip::tcp, 2> SocketService=boost::asio::stream_socket_service<boost::asio::ip::tcp>, 2> InternetProtocol=boost::asio::ip::tcp, 2> ConnectHandler=void (__thiscall MyClass::Sensor::* )(const boost::system::error_code &) 2> ] 2>C:\installs\Boost\include\boost-1_49\boost/asio/basic_socket.hpp(706): error C2064: term does not evaluate to a function taking 1 arguments 2> ```