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TIpClient()
Abstract class for internet communication.
Sub-classes:
TIpClientFtp()
TIpClientHttp()
TIpClientPop()
TIpClientSmtp()
Description
TIpClient() is an abstract class providing instance variables and methods for four sub-classes.
These sub-classes are used for internet communication with the FTP, HTTP, POP and SMTP protocols.
TIpClient() objects are never instantiated directly. The class defines generic instance variables and
methods required for all four internet protocols.
Instance variables
- :cReply
- Reply message of server.
- :exGauge
- Codeblock or function pointer for progress information.
- :lTrace
- Logical value indicating trace logging.
- :nConnTimeout
- Numeric timeout value in milliseconds.
- :nDefaultPort
- Numeric port number.
- :nLastRead
- Number of bytes read.
- :nLastWrite
- Number of bytes written.
- :oUrl
- TUrl object.
Communication
- :close() --> nErrorCode
- Closes the internet connection.
- :commit() --> lSuccess
- Commits data.
- :open( [<cUrl>] ) --> lSuccess
- Opens the internet connection.
- :read( <nBytes> ) --> cData
- Reads data from the internet connection.
- :reset() --> lSuccess
- Resets internal state variables.
- :write( <cData>, [<nBytes>], [<lCommit>] ) --> nBytesWritten
- Writes data to the internet connection.
Error info
- :lastErrorCode() --> nErrorCode
- Returns the last error code.
- :lastErrorMessage() --> cErrorMessage
- Returns the last error message.
File handling
- :readToFile( <cFileName>, [<nFileAttr>], <nBytes> ) --> lSuccess
- Reads data from the internet connection to a local file.
- :writeFromFile( <cFileName> ) --> lSuccess
- Writes data from a local file to the internet connection.
Info
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