I think
Read #hfile, IDtag, ID3v1_TAG
should be
Read #hfile, IDtag as ID3v1_TAG
--
Open WebMail Project (http://openwebmail.org)
---------- Original Message -----------
From: Shane <buster6se...@gmail.com>
To: gambas-user@lists.sourceforge.net
Sent: Tue, 18 Jul 2017 10:50:43 +1000
Subject: Re: [Gambas-user] reading files
> i don't know what i am doing wrong
>
> Public Struct ID3v1_TAG '(128 bytes)
> Tag[3] As String 'always TAG
> Title[30] As String 'title, 30 characters
> Artist[30] As String 'artist, 30 characters
> Album[30] As String 'album, 30 characters
> Year[4] As String 'year, 4 characters
> Comment[30] As String 'comment, 30 characters (or 28 if
> track# included)
> Genre As Byte 'genre, 255 for none defined
> End Struct
>
> Private Sub GetID3v1(File As String)
> Dim IDtag As ID3v1_TAG
> Dim hfile As File
>
> hfile = Open File For Read
>
> '
> 'read the tag
> ' seek to end of less tag size
>
> Read #hfile, IDtag, ID3v1_TAG
>
> here i get IDtag is NULL
>
> On 18/07/17 05:05, nand...@nothingsimple.com wrote:
> > Yes it is possible, I do it. here is some code (incomplete)
> >
> > -Nando (Canada)
> >
> >
> >
> > ' top of class file
> > Public Struct recstruc
> > _a as integer
> > _b as integer
> > _c as integer
> > end struct
> >
> >
> > ' a function
> > public function openAfile(filename as string) as file
> >
> > dim hfile as file
> > dim arec as recstruc
> >
> > hfile = open filename for read write create
> >
> > with arec 'some values to write.
> > ._a = 1
> > ._b = 22
> > ._c = 333
> > end with
> >
> > write #hfile, arec as recstruc
> >
> > 'if you position the hfile pointer back to zero, you can...
> > read #hfile, arec as recstruc
> >
> > close #hfile
> >
> > end
> >
> >
> >
> >
> >
> >
> > --
> > Open WebMail Project (http://openwebmail.org)
> >
> >
> > ---------- Original Message -----------
> > From: T Lee Davidson <t.lee.david...@gmail.com>
> > To: gambas-user@lists.sourceforge.net
> > Sent: Sun, 16 Jul 2017 12:42:35 -0400
> > Subject: Re: [Gambas-user] reading files
> >
> >> On 07/16/2017 06:57 AM, Shane wrote:
> >>> given this example
> >>>
> >>> PRIVATE SUB BinaryRead(FilePath AS String)
> >>> DIM binaryFile AS File
> >>> DIM i AS Integer
> >>> DIM b AS Byte
> >>> DIM s AS Short
> >>> DIM s1 AS String
> >>> DIM s2 AS String
> >>> ' Read binary file
> >>> binaryFile = OPEN FilePath FOR READ
> >>> READ #binaryFile, i
> >>> READ #binaryFile, b
> >>> READ #binaryFile, s
> >>> READ #binaryFile, s1
> >>> READ #binaryFile, s2
> >>> CLOSE #binaryFile
> >>> ' Display results
> >>> PRINT i
> >>> PRINT b
> >>> PRINT s
> >>> PRINT s1
> >>> PRINT s2
> >>> END
> >>>
> >>>
> >>> is there a way for gambas to read a struct of all these variables
> >>> in one read ?
> >>>
> >> You may have hinted at the solution within your question. Have you
> >> considered
> >> using a Structure?
> >>
> >> http://gambaswiki.org/wiki/lang/read :
> >> "... reads the stream Stream as binary data whose type is specified by the
> >> Datatype argument."
> >>
> >> "The returned datatype can be one of the following: NULL, Boolean, Byte,
> >> Short,
> >> Integer, Long, Pointer, Single, Float, Date, String, Variant, any Array,
> >> Collection or structure."
> >>
> >> http://gambaswiki.org/wiki/lang/structdecl
> >>
> >> --
> >> Lee
> >>
> >> ------------------------------------------------------------------------------
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> >> Gambas-user@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/gambas-user
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> >
> >
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