hmmm....just in playing, I found that if I go BlockRead(fFile, aNameArray[0], LengthNameField);
its fine.....shruge Jeremy -----Original Message----- From: "vss" <[EMAIL PROTECTED]> To: Multiple recipients of list delphi <[EMAIL PROTECTED]> Date: Wed, 23 Oct 2002 10:04:12 +1300 Subject: [DUG]: setlength strangeness - maybe > Hi All. > > I am having to read some info from a binary file. > It caters for variable length fields by having one field that tells you > the length of the next field. > > i.e. LengthOfName = 11 > in this case I read the next 11 bytes. > > I thought I would use SetLength for a dynamic array so it knew how much > to blockRead in. > > i.e. > SetLength(oNameArray, LengthOfName); > > BUT when I do this, and I look at oNameArray after its been read in, > its > all #0 's, and its NOT 11 in size...its like 40 or more (or less) > if I declare oNameArray : array[0..10] of char; its fine. > > Whats the story here? anyone know? > > Thanks. Jeremy > > ----------------------------------------------------------------------- > ---- > New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED] > Website: http://www.delphi.org.nz > To UnSub, send email to: [EMAIL PROTECTED] > with body of "unsubscribe delphi" > Web Archive at: http://www.mail-archive.com/delphi%40delphi.org.nz/ --------------------------------------------------------------------------- New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED] Website: http://www.delphi.org.nz To UnSub, send email to: [EMAIL PROTECTED] with body of "unsubscribe delphi" Web Archive at: http://www.mail-archive.com/delphi%40delphi.org.nz/
