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Date: Thu, 22 Nov 2018 11:12:12 -0500
From: Hector Santos
Organization: Santronics Software, Inc
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Subject: Re: [WINServer] telnet-outbound.wcc
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On 11/22/2018 5:39 AM, Terry Roati wrote:
> I am in the process of setting up old doors on Win XP Pro VM using a game
Sever which I can connect to using telenet-outbound.wcx however it displays an
echo of characters, how do I turn off the echo in the telnet-outbound.wcc?
>
Terry,
Before I get into some wcBASIC details, in general for console
applications, like telnet, you can control this with the Telnet
client. Most, if not all, telnet clients, will give you an "Local
Echo" On/Off option because you never know what the server will do
when processing characters. The option is normally called "Local
Echo" on the client side Here is looks like for the Windows telnet
client:
C:\wcat\telnet
Welcome to Microsoft Telnet Client
Escape Character is 'CTRL+]'
Microsoft Telnet> help
Commands may be abbreviated. Supported commands are:
c - close close current connection
d - display display operating parameters
o - open hostname [port] connect to hostname (default port 23).
q - quit exit telnet
set - set set options (type 'set ?' for a list)
sen - send send strings to server
st - status print status information
u - unset unset options (type 'unset ?' for a list)
?/h - help print help information
Microsoft Telnet> set ?
bsasdel Backspace will be sent as delete
crlf New line mode - Causes return key to send CR & LF
delasbs Delete will be sent as backspace
escape x x is an escape charater to enter telnet client prompt
localecho Turn on localecho. <<<<< LOCAL ECHO
logfile x x is current client log file
logging Turn on logging
mode x x is console or stream
ntlm Turn on NTLM authentication.
term x x is ansi, vt100, vt52, or vtnt
Again, most telnet clients will give you a "Local echo" option and its
normally off by default because the server is general in control here
with how to display of input characters. It can't rely on the client
itself to do it right, so the server will do it.
Ok, for your needs, using wcBASIC, you mentioned a door?
For running the DOOR, the DOOR itself will have its own input and echo
features, so you need to see what it does. You can see the one of
the example wcDoor32 applications to show you how it reads the
Keyboard and does local echoing. But it general, the door will handle
it, and normally it will echo.
But for pure wcBASIC, lets first understand what are the current
read/input/keyboard functions. These are the following functions that
you can use in your wcBASIC programs to get input.
The intrinsic input function:
Input "Prompt: ", line
and all the extrinsic input string functions from the library
"cmdline.wch"
InputString
InputMask
InputWord
InputNumber
InputYesNo
InputDate
InputDateString
All do echoing. Can't avoid it. They all use the same internal function:
sub ReadString(rs as TReadStringState)
By setting various fields in rs (see plus pack cmdline.wcc for
example), you can set different input effects, like password stars,
but nothing to turn off echoing.
To turn off echoing, you have to use the Readkey() and ReadKeyRaw()
Functions:
function ReadKeyRaw(timeout as boolean = INFINITE) as integer
function ReadKey(timeout as integer = 10000) as integer
ReadKeyRaw() is pretty "raw" and ReadKey() is more higher level where
you can use it for a FSE (Full Screen Editor) beause it handles the
special keys for UP/DOWN, HOME, PGUP, PGDN, etc.
Only with these two functions can you do a NO ECHO concept.
Here is an example function called "MyInputString()" which gives you
an LocalEcho option:
Function MyInputString(byval maxlen as integer, _
byval localecho as boolean) as String
dim s as string = ""
dim nlen as integer = 0
dim msecs as integer = 100
const BS = chr(8)
const CR = chr(13)
const LF = chr(13)
do
dim k as integer = ReadKey(msecs)
select case(k)
case 0: // timeout, only for ReadKey()
case -1: // timeout, only for ReadKeyRaw()
case 8: // backspace
if len(s) > 0 then
s = left(s, len(s)-1)
if localecho then print BS+" "+BS;
end if
case 10: // ignore linefeed
case 13: // exit with carriage return
if localecho then print CRLF;
exit do
case else:
if maxlen > 0 and len(s) >= maxlen then
exit do
end if
if localecho then print chr(k);
s = s + chr(k)
end select
loop
MyInputString = s
End Function
Now you can use this in "Telnet Outbound.wcc" but keep in mind how it
is "InputString" is used here. It is called twice:
s = InputString(0, False) // LINE #78
s = InputString(0) // LINE #85
The first one says, don't wait for input if there any commands in the
stack (CurrentCmdLine stack which is part of the "Cmdline.wcx"
library) In general, the way this is used is:
dim s as string
s = InputString(0, FALSE) // don't wait if command in stack
if s = "" then // nothing in stack so prompt
print "Enter whatever: ";
s = InputString(0)
end if
So to use your new MyInputString(), change the second one to this:
dim s as string
s = InputString(0, FALSE) // don't wait if command in stack
if s = "" then // nothing in stack so prompt
print "Enter whatever: ";
s = MyInputString(0, FALSE)
end if
That will work I think for you.
Hope these details helps. Please ask developers question in the
Developer list or forums. Thanks
--
Hector, Engineering & Technical Support
Santronics Software, Inc.
http://www.santronics.com (sales)
http://www.winserver.com (support)
http://www.winserver.com/AupInfo (Online AUP Help)
Office: 305-248-3204
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