The orginal CSocket & cSocket2 were designed to emulate the Microsoft Winsock Control. Data would be sent and recovered as variants. On input, the variant was converted to byte array, converted to string using StrConv, added and subtracted to a string buffer, converted back to byte array, and finally handed over to the Socket API. Receipt of data was similar. Verion 2 of NewSocket eliminated all the back and forth conversion, and interfaced using a single conversion of string to byte. Because the StrConv function caused problems with systems using a non-latin character set, it also was eliminated.
Version 2.5 sends and accepts both ASCII strings and byte arrays. Since the Socket API requires byte strings, it made sense to allow direct input and output of byte arrays. This meant converting the string buffers (m_strSendBuffer and m_strRecvBuffer) to byte arrays and writing routines to replace the simple string concatenation and string search functions. At the same time, the functions to send and receive data were changed from a single call which included the data as a string, to 2 separate calls; one to place the data in a buffer, and one to perform the actual function. This enabled the option of using ASCII string data or byte array data.
This posting just includes the "NewSocket.cls" and it's companion "mWinsock.bas", as well as a small program (prjTest.vbp) to test the pair. Once these have proved themselves, I will publish the corresponding OCX.
J.A. Coutts
Version 2.5 sends and accepts both ASCII strings and byte arrays. Since the Socket API requires byte strings, it made sense to allow direct input and output of byte arrays. This meant converting the string buffers (m_strSendBuffer and m_strRecvBuffer) to byte arrays and writing routines to replace the simple string concatenation and string search functions. At the same time, the functions to send and receive data were changed from a single call which included the data as a string, to 2 separate calls; one to place the data in a buffer, and one to perform the actual function. This enabled the option of using ASCII string data or byte array data.
Code:
Old Way New Way
Socket.SendData strData Socket.sOutBuffer = strData '(ASCII String)
or Socket.bOutBuffer = bData '(Byte Array)
Socket.SendData
Socket.GetData strData Socket.RecoverData
strData = Socket.sInBuffer '(ASCII String)
or bData = Socket.bInBuffer '(Byte Array)J.A. Coutts