Thanks Gavin
I am not able to workout bitshift functions in VB. In VB we do not have any
bitshift operators. Any idea how to it?
I have tried to read the date (i.e., 1/2/2002 m/d/yyyy format) from the
Palm.
I tried to Convert them to Hex frist (first 4 bytes) i.e.,
000000 B8 56 AC 80
Converting this to Decimal (as it is) will give signed long.
Like;
?val(&H80AC56B8&)
-2136189256
?val(&HB856AC80&)
-1202279296
I have confusion here, how to do bit shift on this number? I am right to say
so or I have to bit shift before converting the bytes into Hex. Anyway I am
confused now.
Any idea how to solve this.
Thanks
With Regards
K.S.Jaishankar
>From: Gavin Maxwell <[EMAIL PROTECTED]>
>Reply-To: "Palm Developer Forum" <[EMAIL PROTECTED]>
>To: "Palm Developer Forum" <[EMAIL PROTECTED]>
>Subject: RE: Reading Date & Number fields from Byte Array
>Date: Mon, 14 Jan 2002 10:20:22 +0800
>
>Nope. The ByteArrayToXXX routines handle byte-swapping for you, and from
>memory should handle all the standard integer types.
>
>Exactly which types are you storing on the Palm? There was some discussion
>a
>few days ago about this I think. If you are storing DateType structures
>(which are a 2-byte bitfield) you'll have to resort to bitshifts to extract
>it. Not too hard though. Something like this might work. NB: I haven't
>tried
>this - and I'm not a VB expert! :-)
>
> 'typedef struct {
> 'UInt16 year :7;
> 'UInt16 month :4;
> 'UInt16 day :5;
> '} DateType;
>
> Dim month As Integer, day As Integer, year As Integer
>
> day = theMatchRecord.matchDate And &H1F
> month = (theMatchRecord.matchDate And &H1E0) \ &H1F
> year = ((theMatchRecord.matchDate And &HFE00)) \ &H200
>
>Also you might get a better response over at the conduits list - that's
>where all those wierd conduit developers hang out! :-)
>
>
>Have fun,
>
>Gavin.
>
>-----Original Message-----
>From: Michael Glickman [mailto:[EMAIL PROTECTED]]
>Sent: Monday, 14 January 2002 11:37 AM
>To: Palm Developer Forum
>Subject: RE: Reading Date & Number fields from Byte Array
>
>
>
>
>-----Original Message-----
>From: K.S. Jaishankar [mailto:[EMAIL PROTECTED]]
>Sent: Sunday, 13 January 2002 10:43 PM
>To: Palm Developer Forum
>Subject: Reading Date & Number fields from Byte Array
>
>
> > I have difficulties in reading database fields of type
> > Date and Currency/Double/Single/Long/Int to synchronize the ODBC
>database.
>I
> > have tried to use ByteArrayToBSTR, ByteArrayToDWord and ByteArryToWord
> > functions for converting them, however was not successful in getting
>date
> > and numeric values.
>
>As a matter of fact, Palm fields are big-enfdian, while Intel has a
>little-endian architecture. I do not design conduits (well, until we get a
>documentation on pilot-link libraries :=)), but you might need calling
>ntohs
>and htonl to swap byte order.
>
>Michael
>
>--
>For information on using the Palm Developer Forums, or to unsubscribe,
>please see http://www.palmos.com/dev/tech/support/forums/
>
>--
>For information on using the Palm Developer Forums, or to unsubscribe,
>please see http://www.palmos.com/dev/tech/support/forums/
K.S.Jaishankar
Phone:98717915 (Mobile), 2717520 (Res)
Email:[EMAIL PROTECTED]
[EMAIL PROTECTED]
_________________________________________________________________
MSN Photos is the easiest way to share and print your photos:
http://photos.msn.com/support/worldwide.aspx
--
For information on using the Palm Developer Forums, or to unsubscribe, please see
http://www.palmos.com/dev/tech/support/forums/
