About Barcode Wallet for WP7
Save space in your wallet by digitizing the barcodes of any loyalty or memberships cards that you carry around.
- See your most used barcodes at a glance
- Tap a card to quickly bring up the barcode ready for scanning.
- Pin your most used cards to the start screen.
- Scan a barcode directly from the phone from a video feed, photo, or saved image.
- Backup and restore barcodes to Skydrive
Tips and FAQ
Scanning Barcodes into the phone
- Ensure that the complete barcode can be seen clearly in the photo
- Try to avoid the flash over saturating the barcode
- Orientate the barcode to match the phones orientation
- Check that the barcode format is supported by the app.
- If you are having issues with a particular barcode try sending an image of it to an online reader. I've found the ClearImage Free Online Barcode Reader / Decoder to work well and provide back useful information, such as the barcode type as well as the data.
Scanning barcodes directly from the phones screen
Unfortunately not all types of barcode scanner are capable of reading barcodes directly from a cell phone screen. The major factor is the type of scanner being used.
A laser scanner sends out beams of light and uses the reflected light to read the light and dark bars. White bars reflect back the majority of the light. Black bars absorb the majority of light and reflect back very little. Therein lies the issue for scanning a barcode from a cellphone screen. Firstly, The glass and other layers of a cellphone screen are more reflective than a printed barcode. The excess light they reflect back will prevent the scanner from clearly seeing the difference between light and dark portions of the barcode. Secondly, a cellphone screen does not appear white because it is reflecting light. Rather, it is emitting light from a number of other colours to create white (typically red, green and blue pixels). These multiple pixels emitting light together won't reflect light in the way that a printed white does. For these reasons a laser scanner cannot read a barcode from a phones screen.
Another type of scanner is an imager or CCD Barcode scanner. These work more like a digital camera and will see the light emitted from the screen. CCD scanners can read a barcode from a cellphone screen.
- Can I scan barcodes directly from a cell phone or similar device?
- What is the difference between laser barcode scanners and imagers, also known as CCD barcode scanners?
How do I delete a barcode from the wallet?
On the first screen, try holding down on the barcode in question and then selecting edit.
On the edit screen there will be a delete link in the application bar at the bottom of the screen.
Scanning a PDF417 barcode produces the error "CP437 is not a supported encoding name. Parameter name: name"
Based on the error message it seems the barcode contains characters that aren't supported by the Windows Phone platform.
CP437 refers to Code page 437
Unable to create Skydrive folder to store barcodes
Try manually creating the folder if the Skydrive permissions don't allow the app to. The folder should be called "Barcode Wallet" and be at the top level of the files directory. E.g.
Known Issues with v2.4.0
Unfortunately there are a couple of known bugs with v2.4.0 that I'm working to resolve.
- On WP7 handsets there is an issue with creating the "Barcode Wallet" folder in SkyDrive. The folder gets created on first use, but the phone doesn't get the new Folder Id back. This results in an Exception when attempting to get the barcodes currently in SkyDrive.
- On WP7 handsets attempting to sync multiple barcodes at the same time will cause an exception. This is a concurrency issue.
- You will get an invalid file name error if your barcode name starts or ends with '.'. Contains any unprintable characters or any of the following characters: '\', '/', ':', ';', '*', '<', '>', '|', '?'
13th March 2013 - I have resolved the first two issues and will release the fix shortly. It may take a few days for it to pass the store certification process.