AH POOH !!! .....ah well, that wont be too hard to work with....thanks.....
Jeremy Coulter
-----Original Message-----
From: Aaron Scott-Boddendijk [mailto:[EMAIL PROTECTED]]
Sent: Thursday, April 15, 1999 9:41 AM
To: Multiple recipients of list delphi
Subject: Re: [DUG]: Passing record structures
>Ok , well using string[255] worked fin. I think mor original problem was
>that I was not putting a "@" at the begining of what was to be written to
>the socket in buffer form. i.e.
...
>I am not sure if I this still works but just using a string rather than a
>fixed length string, but I will know tonight when I get home I guess.
The answer is no it shouldn't.
here are 2 record definitions
type
TA = record
X,Y :Integer;
N :String;
end;
TB = record
X,Y :Integer;
N :String[8];
end;
var
A :TA;
B :TB;
Size of A remains fixed as does Size Of B. But A is smaller because the
string isn't actually in there.
Memory for TA would be something like XXXXYYYYNNNN whereas TB will be
XXXXYYYYNNNNNNNN
note that if you store 'PASSWORD' in the N fields of both records you will
still have those record sizes
because in TA the string is stored outside the record in a different part of
memory and the N field is just
a pointer to the text. SO using @A will send the pointer not the text,
whereas @B will send the text.
I'm afraid you'll have to do a bit more work to transmit variable length
strings than that.
--
Aaron Scott-Boddendijk
Jump Productions
(07) 838-3371 Voice
(07) 838-3372 Fax
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