Read binary file made with VB

Hi there,
Here is something I never did, so a little help is welcome
I have a binary file made with VB and I want to read it with LabVIEW 8.5.
I know the structure of the records in the file, it's something like:
    str1      As String * 5
    str2      As String * 6
    str3     As String * 2
    date      As Date
    str4     As String * 20
    str5 As String * 20
    int1       As Integer
flt1    As Single
    flt2     As Single
    flt3      As Single
and so on.
Further on there's even a 2D array: 3 rows, 400 cols of singles.
The total length of one record is 5120 bytes.
I can pick up whatever record from the file using the "Set file positions" & "Read from binary file" vi's but how do I convert those 5120 bytes in the correct structure?
I was thinking of a cluster but how do I define a fix string length in LV?
Also, is a cluster the right way to go?
So, like I said any help is welcome
Thanks

Alain S wrote:
I was thinking of a cluster but how do I define a fix string length in LV?
Also, is a cluster the right way to go?
So, like I said any help is welcome
Thanks
Defining a fixed sized string officially not possible, and even the non official way will get you bugs, so let's do the official route.
First open up the file with a hex editor, I normally use the Total Commander's built in F3, and then hit '3' to get a hex view. In that view I check wheter the lenght of the string is prepended to the string (Pascal and LabVIEW style) or ended with a Null (C style).
If none of them is happening, I would use a cluster of 5 U8's to get the string, convert this cluster to an array, and convert that to a string.
I have no idea what a 'Date' representation is in VB.
A cluster is very suitable for this task, however I do not get the info about the 2D array, if you could add a data file that would be very helpfull.
Ton
Message Edited by TonP on 28-08-2009 08:44 PM
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