FormFieldResult Class

C#
Visual Basic
Objective-C
Java
C++

[SerializableAttribute()]
public abstract class FormFieldResult

'Declaration
 
<SerializableAttribute()>
Public MustInherit Class FormFieldResult

'Usage
 
Dim instance As FormFieldResult

[SerializableAttribute()]
public ref class FormFieldResult abstract

Fields are defined for each page in the processing engine. All fields require you fill in the Property specifying where the field is located, and a Name Property.

Fields can be added or retrieved through the FormProcessingEngine.Pages property. Once fields are defined, they can be loaded/saved from disk using the FormProcessingEngine.LoadFields and FormProcessingEngine.SaveFields methods, allowing you to define MasterForm fields just once and save them to disk. LEADTOOLS supports TextFormField, OmrFormField, BarcodeFormField, ImageFormField, and custom user-defined fields derived from FormField. When obtaining processing results, you should check for the type of each field, and cast it to the appropriate type in order to obtain the field specific results (barcode, image, etc).

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
  Imports Leadtools.Barcode
  Imports Leadtools.Codecs
  Imports Leadtools.Forms
  Imports Leadtools.Forms.Ocr
  Imports Leadtools.Forms.Processing
  Imports Leadtools.Forms.Recognition
  Imports Leadtools.Forms.Recognition.Barcode
  Imports Leadtools.Forms.Recognition.Ocr

  '''This example prints field results.
Private Function GetDataString(ByVal data As Byte()) As String
   Dim result As String = String.Empty
   Dim i As Integer = 0
   Do While i < data.Length
      result = result & System.Convert.ToChar(data(i)).ToString()
      i += 1
   Loop

   Return result
End Function
Public Sub PrintOutFieldResults(ByVal processingEngine As FormProcessingEngine)
   For Each page As FormPage In processingEngine.Pages
      For Each field As FormField In page
         Dim row As String() = New String(4){}
         row(0) = field.Name
         row(4) = field.Bounds.ToString()

         If Not field.Result Is Nothing Then
            If TypeOf field Is TextFormField Then
               row(1) = "Text"
               row(2) = (TryCast((TryCast(field, TextFormField)).Result, TextFormFieldResult)).Text
               row(3) = (TryCast((TryCast(field, TextFormField)).Result, TextFormFieldResult)).AverageConfidence.ToString()
            ElseIf TypeOf field Is OmrFormField Then
               row(1) = "Omr"
               row(2) = (TryCast((TryCast(field, OmrFormField)).Result, OmrFormFieldResult)).Text
               row(3) = (TryCast((TryCast(field, OmrFormField)).Result, OmrFormFieldResult)).AverageConfidence.ToString()
            ElseIf TypeOf field Is BarcodeFormField Then
               row(1) = "Barcode"
               Dim i As Integer = 0
               Do While i < (TryCast((TryCast(field, BarcodeFormField)).Result, BarcodeFormFieldResult)).BarcodeData.Count
                  row(2) = GetDataString((TryCast((TryCast(field, BarcodeFormField)).Result, BarcodeFormFieldResult)).BarcodeData(i).GetData())
                  i += 1
               Loop

               row(3) = "N/A"
            ElseIf TypeOf field Is ImageFormField Then
               row(1) = "Image"
               row(2) = "N/A"
               row(3) = "N/A"
            End If
         End If
         For Each line As String In row
            Console.WriteLine(line & Constants.vbCrLf)
         Next line
      Next field
   Next page
End Sub

using Leadtools;
using Leadtools.Barcode;
using Leadtools.Codecs;
using Leadtools.Forms;
using Leadtools.Forms.Ocr;
using Leadtools.Forms.Processing;
using Leadtools.Forms.Recognition;
using Leadtools.Forms.Recognition.Barcode;
using Leadtools.Forms.Recognition.Ocr;

///This example prints field results.
private string GetDataString(byte[] data)
{
   string result = string.Empty;
   for (int i = 0; i < data.Length; i++)
   {
      result = result + System.Convert.ToChar(data[i]).ToString();
   }

   return result;
}
public void PrintOutFieldResults(FormProcessingEngine processingEngine)
{
   foreach(FormPage page in processingEngine.Pages)
   {
      foreach(FormField field in page)
      {
         string[] row = new string[5];
         row[0] = field.Name;
         row[4] = field.Bounds.ToString();

         if(field.Result != null)
         {
            if(field is TextFormField)
            {
               row[1] = "Text";
               row[2] = ((field as TextFormField).Result as TextFormFieldResult).Text;
               row[3] = ((field as TextFormField).Result as TextFormFieldResult).AverageConfidence.ToString();
            }
            else if(field is OmrFormField)
            {
               row[1] = "Omr";
               row[2] = ((field as OmrFormField).Result as OmrFormFieldResult).Text;
               row[3] = ((field as OmrFormField).Result as OmrFormFieldResult).AverageConfidence.ToString();
            }
            else if(field is BarcodeFormField)
            {
               row[1] = "Barcode";
               for(int i = 0; i < ((field as BarcodeFormField).Result as BarcodeFormFieldResult).BarcodeData.Count; i++)
                  row[2] = GetDataString(((field as BarcodeFormField).Result as BarcodeFormFieldResult).BarcodeData[i].GetData());

               row[3] = "N/A";
            }
            else if(field is ImageFormField)
            {
               row[1] = "Image";
               row[2] = "N/A";
               row[3] = "N/A";
            }
         }
         foreach(string line in row)
            Console.WriteLine(line + "\r\n");
      }
   }
}

Target Platforms

Reference

FormFieldResult Members
Leadtools.Forms.Processing Namespace