Update avoid-incorrect-results.md

Author: yqz562

general/avoid-incorrect-results.md

@@ -12,3 +12,41 @@ needAutoGenerateSidebar: false
 [<< Back to FAQ index](index.md)
 
 One way to avoid this is to set the [minBarcodeTextLength](https://www.dynamsoft.com/barcode-reader/docs/server/programming/cplusplus/api-reference/simplified-barcode-reader-settings.html#:~:text=int%20minResultConfidence%3B-,int%20minBarcodeTextLength%3B,-char%20barcodeTextRegExPattern%5B) in [SimplifiedBarcodeReaderSettings](https://www.dynamsoft.com/barcode-reader/docs/server/programming/cplusplus/api-reference/simplified-barcode-reader-settings.html#:~:text=SimplifiedBarcodeReaderSettings-,SimplifiedBarcodeReaderSettings,-The%20SimplifiedBarcodeReaderSettings%20struct) of [SimplifiedCaptureVisionSettings](https://www.dynamsoft.com/capture-vision/docs/server/programming/cplusplus/api-reference/capture-vision-router/structs/simplified-capture-vision-settings.html?product=dbr&repoType=server) to the correct length that the barcode results should be. Say that the barcode results should at least be 10 characters long, and the results are sometimes coming out with just 6 or 7 characters. By setting the minBarcodeTextLength to 10, the SDK will ignore results that are shorter than 10 characters.
+
+---
+
+> **Notice (Temporary Issue)**  
+> This is a known issue in the current release and will be fixed in the next version.  
+>  
+> As a temporary solution, please set `IncludeTrailingCheckDigit` to `0` in the `BarcodeFormatSpecification` for Code128.  
+> This will prevent the SDK from returning the trailing check digit.
+
+### CODE_128 decoding returns an extra byte?
+
+When using DBR v11, you may notice that decoding a **CODE_128** barcode returns one extra byte at the end if you call `item.get_bytes()`.
+
+**Cause**  
+By default, DBR includes the trailing check digit for CODE_128 in the decoded byte results.
+
+**Solution**  
+Set `IncludeTrailingCheckDigit` to `0` in the `BarcodeFormatSpecification` for Code128.
+
+**Example JSON Configuration**
+
+```json
+{
+  "BarcodeFormatSpecificationOptions": [
+    {
+      "Name": "bfs1",
+      "BarcodeFormatIds": [
+        "BF_CODE_128"
+      ],
+      "MinResultConfidence": 30,
+      "RequireStartStopChars": 1,
+      "ReturnPartialBarcodeValue": 1,
+      "VerifyCheckDigit": 0,
+      "IncludeTrailingCheckDigit": 0
+    }
+  ],
+  #...Other Settings
+}