I need to make a small tweek to the eVB code I have inherited from my
predecessor that will adjust the focus distance on our Symbol
PDT8146 2d Imager Scanners. The Imager Demo app that comes with the
device has a combo box with these options available so I know that I
can perform this modification in either eVB or eC++, but I'm not sure
where to go now.

Effectively, I would like something like this:
If MyReader.ReaderParameters.ReaderType =
Symbol.Barcode.READER_TYPE.READER_TYPE_IMAGER Then

MyReader.ReaderParameters.ReaderSpecific.ImagerSpecific.FocusPosition
= Symbol.Barcode.FOCUS_POSITION.FOCUS_POSITION_NEAR
End If

I have pored over the ScanControl documentation to no avail and sought
help from Symbol, but they cannot provide very much support for this
dated application.

Any advice?

RE: eVB Barcode Scanner Focus Distance by jp2msft

jp2msft
Fri Mar 14 11:41:02 CDT 2008

Hi,

We are using the Symbol Pocket PC Scanners. Is that the same as your
"PDT8146 2d Image Scanner"?

We are developing with VS2005 Pro, but if we have the same scanners you
have, I might be able to help.

Where did you get the SDK from?

We have something called "ScanWedge Example" running in our task bar. It is
ScanWedge Revision 3.1.11.2, Copyright © 1999-2002 by Symbol Technologies.

With ScanWedge running in the background, all barcode scans are treated as
text.

How does yours work?

"icames@gmail.com" wrote:

> I need to make a small tweek to the eVB code I have inherited from my
> predecessor that will adjust the focus distance on our Symbol
> PDT8146 2d Imager Scanners. The Imager Demo app that comes with the
> device has a combo box with these options available so I know that I
> can perform this modification in either eVB or eC++, but I'm not sure
> where to go now.
>
> Effectively, I would like something like this:
> If MyReader.ReaderParameters.ReaderType =
> Symbol.Barcode.READER_TYPE.READER_TYPE_IMAGER Then
>
> MyReader.ReaderParameters.ReaderSpecific.ImagerSpecific.FocusPosition
> = Symbol.Barcode.FOCUS_POSITION.FOCUS_POSITION_NEAR
> End If
>
> I have pored over the ScanControl documentation to no avail and sought
> help from Symbol, but they cannot provide very much support for this
> dated application.
>
> Any advice?
>