Paul McKenzie

``` Description: The text of a bar code found on a page. Value Type: TWTY_HANDLE Allowed Values: Any handle to a string ``` Yes, that is exactly what the DTWAIN...

Also, since you are reading the TWAIN specification, you can [directly make calls to the TWAIN Data Source Manager](https://www.dynarithmic.com/onlinehelp/dtwain/newversion/Low-LevelTWAINFunctions.html), bypassing what DTWAIN is doing. The call to [DTWAIN_CallDSMProc](https://www.dynarithmic.com/onlinehelp/dtwain/newversion/DTWAIN_CallDSMProc.html) can be...

Just to update you, I will have an Avision 176U to test with in the next few days. However as my last comment suggested, you can bypass and/or diagnose the...

I now have the Avision 176U in house. Here is what I found when initially testing the Barcode support. 1) There definitely are issues with the DTWAIN implementation of obtaining...

Also, Avision comes with bundled software (AVscanX) that scans images. The barcode detection option that this software has is done on the scanned bitmap -- it isn't done within the...

After some more work on the Avision scanner and barcodes, Avision does seem to use TWEI_BARCODETEXT, but only partially support TWEI_BARCODETEXT2. So I tried TWEI_BARCODETEXT, and had a little bit...

You can try the experimental [5.5.3 binaries](https://github.com/dynarithmic/twain_library_source/tree/experimental-5.5.3). This version addresses several issues with the TWEI_... handling. The Avision 176U 64-bit driver has bugs when attempting to get certain string related...

Thanks. As soon as version 5.5.3 is released, I will close this issue.

Closing issue. The latest version [5.5.3](https://github.com/dynarithmic/twain_library/releases/tag/v5.5.3) has corrected the issues.

You can try [DTWAIN_SetMaxAcquisitions](https://www.dynarithmic.com/onlinehelp/dtwain/newversion/DTWAIN_SetMaxAcquisitions.html), and set the maximum number of acquisitions to 1. This should be called before `DTWAIN_AcquireFile`.