Writing string to binary file without string Pascal style string length prefix

[massybird]

I'm working on creating a binary file (little-endian) that will be read by other programs than LabVIEW.  It simply starts off with a four character string 'iiii'.  LabVIEW flattens the string and writes string length as prefix before writing the actual string:

'iiii' binary file: 00 00 00 04 69 69 69 69

I'd like to simply write:

'iiii' binary file: 69 69 69 69

The documentation talks of converting each character to decimal then to hexadecimal, then finally writing each char of hex string.  I have not been successful in doing this.  Please let me know if there's a clean way of writing strings to binary file without the Pascal string length prefix.  Thanks!

[mikeporter]

It doesn't seem to me that you have to do any conversion. 69 is the ascii code for a lower-case "I" so simply writing the string to the file will give you four consecutive hex values of 69. Remember that every thing is binary - we humans just build computers that interpret a certain arbitrary set of hexidecimal values as "text".

Mike...

[JK1]

1234Hai,

By conversion did you mean something like this....

This will give you array of 69's

[MikeS81]

Hi massybird,

connect a false constant to the "write array or string size", then you write only the "real" data.

Mike

Message Edited by MikeS81 on 07-23-2008 07:17 AM

[massybird]

Thank you to all who answered so quickly.  I just started using LabVIEW last Friday, so I'm still getting familiar with all the options the graphical components provide.  MikeS81, that's exactly what I needed.