smtpClose (Function)

This function will close the SMTP interface. After the SMTP interface is closed, it cannot be used until opened again.

Please also see smtpOpen.

When closing the SMTP interface, all emails created with smtpNew and smtpSend will be canceled, and all waiting threads (using smtpAwaitCompletion) will be resumed.

Input:

None.

Returns: INT

Declaration:

FUNCTION smtpClose : INT;

Example:

INCLUDE rtcu.inc
 
VAR
   ignition : BOOL;
END_VAR;
 
PROGRAM example;
VAR
   smtp_open : BOOL;
END_VAR;
 
   gsmPower(power := ON);
   netOpen(iface:=1);
BEGIN
   IF ignition THEN
      IF NOT smtp_open THEN
         IF smtpOpen() = 0 THEN
            smtp_open := TRUE;
         ELSE
            DebugMsg(message:="smtpOpen - Failed!");
         END_IF;
      END_IF;
   ELSE
      IF smtp_open THEN
         smtpClose();
         smtp_open := FALSE;
      END_IF;
   END_IF;
END;
 
END_PROGRAM;