FAQ - Frequently Asked Questions
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Why can't I read barcodes even though I have a high resolution web cam?
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bcWebCam settings are optimized for the most common resolution of 640x480.
When using higher resolutions, you should increase the value for the extended barcode setting Light Margin (for linear barcodes).
Alternatively you can manually set/reduce the web cam resolution (see below for details).
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Why is the video stream preview slow and the recognition delayed?
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bcWebCam uses the highest resolution the web cam offers. If you have a high
resolution web cam, this might be the reason. In most cases 640x480 is enough.
You can manually set/reduce the web cam resolution to test if it affects performance
(see below for details).
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How do I set the web cam resolution for bcWebCam?
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The standard behavior of bcWebCam is to use the best web cam resolution available.
You can change this by setting special parameters in the bcWebCam.ini config file.
In section [General] edit the following entries:
CaptureWidth=640
CaptureHeight=480
Important: Be sure to set values which are supported by your web cam. Otherwise
errors might occur.
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Where do I find the config file bcWebCam.ini?
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The file is located in folder 'c:\Documents and Settings\%Username%\AppData\Local\bcWebCam\bcWebCam.ini'.
If it is not there, search for bcWebCam.ini instead.
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Is it possible to read two barcode with the same content in line?
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Not with the standard settings. Otherwise, bcWebCam would read the same barcode again and
again as long as it is in focus. But it is possible to define a time period after which
bcWebCam does allow the same content of a barcode again. You can configure this (with
bcWebCam 2.1.0.3 or later versions) in the bcWebCam.ini.
Section [General] Entry BcGracePeriod; 0=never
allow same content in line; other number=time period in milliseconds.
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Test your barcode -
Read encoded data |
Use the Freeware bcTester to read barcodes from image files and
Adobe PDF documents. Linear barcodes are read as well as modern 2D barcodes like
DataMatrix, QR Code, Aztec and PDF417.
More Information and Download...
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Barcode recognition -
fully automated! |
With the Windows-Application QS-DocumentAssembler, you can use
barcodes to automatically read, sort, group, index and archive your documents!
With flexible configuration!
More Information and a Demo Version...
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Recognize barcodes -
using your programs! |
Using the QS-Barcode SDK, software developers can easily
integrate the barcode recognition into their own programs.
QS-Barcode SDK makes all of this possible.
More Information and a Demo Version...
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