Re: POS
From: JP Bless (jp3bless_NoSpam_at_hotmail.com)
Date: 02/14/05
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Date: Mon, 14 Feb 2005 09:03:15 -0500
And I forgot to menthion calculating and keeping track of the ever-present
sales (taxes). That is if they do charge sales taxes in your State.
"JP Bless" <jp3bless_NoSpam@hotmail.com> wrote in message
news:OrZEfipEFHA.548@TK2MSFTNGP14.phx.gbl...
> Mike is very right. POS systems is probably one of the most taxing
> applications you would ever build. Think of the many scenarios a good POS
> system must deal with. Depending on the type... You would have to consider
>
> Sales
> -Barcode scanning method (and devices)
> -Return (Of course customers do return items when not satisfied)
> -Layaway
> -Weighing products... type of Scale
> -Customer Display
> -Discounting
> -Tender methods
> Think of other modules like Inventory, Accounting, Orders etc...
>
> No one is trying to discourage you but designing a POS is not a walk in
the
> park. There are way too many things to design and program. Unless, of
course
> you just want a "no-frills" in-house system that just rings in sales. If
you
> like, you can visit www.planetsourcecode.com and search for POS or
inventory
> system. There are good souls out there who are willing to share some of
> their hard work. By the way, printing and opening cash drawers with VB is
> very easy... see sample code below
>
> This will open cash drawer attached to "COM1:"
> Open "COM1:" For Output As #1
> 'This codes opens most cash drawers
> 'Epson Standard
> Print #1, Chr(27) & Chr(112) & Chr(0)
> Close #1
> DoEvents
> Exit Sub
>
> Print to Epson attached to Com1: (Code untested)
>
> This will open cash drawer attached to "COM1:"
> Dim i as integer
> Open "COM1:" For Output As #1
> 'Epson Standard
> For I = 1 to 10
> Print #1, "Computer P4 $1500.99"
> Next i
> Close #1
> DoEvents
> Exit Sub
> And then there is the nagging part about formating the receipt
>
>
> "MikeD" <nobody@nowhere.edu> wrote in message
> news:uKzRePjEFHA.1932@TK2MSFTNGP14.phx.gbl...
> >
> > "dave" <forged@foo.netREMOVE> wrote in message
> > news:%2349IrkiEFHA.228@tk2msftngp13.phx.gbl...
> > > Hi
> > > I m thinking to build application point of sale system using VB.
> > > I have never done before so I'm very much new and couldnt understand
> where
> > > should i start from.
> > > Can anyone guide me?
> > > Can any one suggest how to print to epson tm88iii printer using vb
> > > code...becoz we are going to use that printer...
> >
> >
> > No offense, but this doesn't sound like something you should be taking
on
> > right now. You're essentially trying to run before you've even learned
> how
> > to walk (or possibly even crawl).
> >
> > As to your first question, sorry, but nobody here can really guide you
on
> > how to write a POS app. If you take this on, we can provide help and
> > suggestions to specific problems you encounter, but that's really about
> it.
> > For starters, you'll need to decide on exactly what features and
> > functionality you want/need the POS to provide. Then, you'll need to
> create
> > and design a database schema. Next, you might create the UI. Finally,
> you'll
> > write code to make everything work.
> >
> > As to your second question, you should be able to use VB's Printer
object.
> > You just need to install the right printer driver.
> >
> > --
> > Mike
> > Microsoft MVP Visual Basic
> >
> >
>
>
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