GetAvailableLanguageCount Method (GdPictureOCR)

In This Topic

Returns a number of all known language dictionaries available in the currently defined resource folder.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function GetAvailableLanguageCount() As Integer

public int GetAvailableLanguageCount()

public function GetAvailableLanguageCount(): Integer;

public function GetAvailableLanguageCount() : int;

public: int GetAvailableLanguageCount();

public:
int GetAvailableLanguageCount();

Return Value

The number of all known language dictionaries available in the current resource folder.

Please always use the GetStat method to determine if this method has been successful.

Remarks

Please ensure that you have correctly set up your prefered resource folder for OCR dictionaries.

It is recommend to use the GetStat method to identify the specific reason for the method's failure, if any.

Example

How to find out the number of all available languages in the specified resource folder.

VB.NET
C#

Dim caption As String = "Example: GetAvailableLanguageCount"
Using gdpictureOCR As GdPictureOCR = New GdPictureOCR()
    'Specify your resource folder for OCR dictionaries.
    gdpictureOCR.ResourcesFolder = "\GdPicture.Net 14\redist\OCR"
    Dim count As Integer = gdpictureOCR.GetAvailableLanguageCount()
    If gdpictureOCR.GetStat() = GdPictureStatus.OK Then
        If count > 0 Then
            Dim list As IList(Of OCRLanguage) = gdpictureOCR.GetAvailableLanguages()
            If gdpictureOCR.GetStat() = GdPictureStatus.OK Then
                Dim languages As String = list.ElementAt(0).ToString()
                Dim lang As OCRLanguage = 0
                For idx As Integer = 1 To count - 1
                    lang = list.ElementAt(idx)
                    languages = languages + ", " + lang.ToString()
                Next
                MessageBox.Show("The number of available languages: " + count.ToString() + vbCrLf + "Languages:" + vbCrLf + languages, caption)
            Else
                MessageBox.Show("The GetAvailableLanguages() method has failed with the status: " + gdpictureOCR.GetStat().ToString(), caption)
            End If
        Else
            MessageBox.Show("No languages are available in this resource folder: " + gdpictureOCR.ResourcesFolder, caption)
        End If
    Else
        MessageBox.Show("The GetAvailableLanguageCount() method has failed with the status: " + gdpictureOCR.GetStat().ToString(), caption)
    End If
End Using

string caption = "Example: GetAvailableLanguageCount";
using (GdPictureOCR gdpictureOCR = new GdPictureOCR())
{
    //Specify your resource folder for OCR dictionaries.
    gdpictureOCR.ResourcesFolder = "\\GdPicture.Net 14\\redist\\OCR";
 
    int count = gdpictureOCR.GetAvailableLanguageCount();
    if (gdpictureOCR.GetStat() == GdPictureStatus.OK)
    {
        if (count > 0)
        {
            IList<OCRLanguage> list = gdpictureOCR.GetAvailableLanguages();
            if (gdpictureOCR.GetStat() == GdPictureStatus.OK)
            {
                string languages = list.ElementAt(0).ToString();
                OCRLanguage lang = 0;
                for (int idx = 1; idx < count; idx++)
                {
                    lang = list.ElementAt(idx);
                    languages = languages + ", " + lang.ToString();
                }
                MessageBox.Show("The number of available languages: " + count.ToString() + "\nLanguages:\n" + languages, caption);
            }
            else
            {
                MessageBox.Show("The GetAvailableLanguages() method has failed with the status: " + gdpictureOCR.GetStat().ToString(), caption);
            }
        }
        else
            MessageBox.Show("No languages are available in this resource folder: " + gdpictureOCR.ResourcesFolder, caption);
    }
    else
    {
        MessageBox.Show("The GetAvailableLanguageCount() method has failed with the status: " + gdpictureOCR.GetStat().ToString(), caption);
    }
}

Reference

GdPictureOCR Class
GdPictureOCR Members
GetAvailableLanguages Method
GetAvailableLanguage Method
AddLanguage Method
ResourcesFolder Property