Change_OCR_Characters.md

Selecting an AZL subfield to be used for OCR correction

This script solves the problem that an AZL may be looking at various locations on a document for possibilities of a field. You want in script to control which zone is assigned to a Field and that character correction is available for that field.

1. Assign any subfield of the AZL to a Field. This is needed so that you can set the checkbox for Display Field in Correction.
   
2. Open Document Validation Form Designer Menu/Design/ValidationForms/Customize/Step1.
3. click exactly where the mouse cursor is in the image to see the Validation Form Settings.
   
4. Make sure that Character Exact Editing is Enabled in the Form Settings
   
5. Make sure that Thin Client Character Correction is selected in the Project Settings if you are using the Thin Client.
   
6. Add this script to the Document Class. This example forces the Field FirstName to use the second subfield from the Advanced Zone Locator.

Private Sub Document_AfterExtract(ByVal pXDoc As CASCADELib.CscXDocument)
   Dim AZL As CscXDocField, FirstName As CscXDocField, Zone As CscXDocSubField
   Set AZL=pXDoc.Locators.ItemByName("AZL")
   Set Zone =AZL.Alternatives(0).SubFields(1)
   Set FirstName=pXDoc.Fields.ItemByName("FirstName")
   Chars_Replace(FirstName,Zone)
   Dim x As Long
   x=1

End Sub

Function Chars_Replace(A As CscXDocField, B As CscXDocSubField)
   Dim C As Long
   While A.Chars.Count>0
      A.Chars.Remove(0)
   Wend
   For C=0 To B.Chars.Count-1
      A.Chars.Append(B.Chars(C))
   Next
   A.PageIndex=B.PageIndex
   A.Left=B.Left
   A.Width=B.Width
   A.Top=B.Top
   A.Height=B.Height
   A.Confidence=B.Confidence
End Function