1. ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
  2. ZBI Commands
  3. Port Usage Examples
  4. TCP Client
  • ZPL II, ZBI 2, Set-Get-Do, Mirror, WML Programming Guide
TCP Client

TCP Client

There are two methods for making a TCP connection to another server. The first method uses the
OPEN
 command while the second method uses the
CLIENTSOCKET
 method.
CLIENTSOCKET
 is the preferred method.
Example
The following example demonstrates this method: 
10 CLOSE ALL 
20 LET INPORT = CLIENTSOCKET("TCP","192.168.0.1",9100) 
40 LET OUTSTR$ = "REQUESTING SERVER NAME"; 
50 DO WHILE (LEN(OUTSTR$) > 0) 
60 LET BYTES_WRITTEN = WRITE(INPORT,OUTSTR$,LEN(OUTSTR$)) 
70 ON ERROR GOTO RECOVERY 
80 LET OUTSTR$ = OUTSTR$(1+BYTES_WRITTEN:LEN(OUTSTR$)) 
90 LOOP 
100 INPUT #INPORT: YOURNAME$ 
110 PRINT #INPORT: "Server returned: "; YOURNAME$ 
120 CLOSE #INPORT 
130 SUB RECOVERY 
140 END