SetOCGTitle Method (GdPicturePDF)

In This Topic

Sets up the title of an optional content group, in other words the name of a layer, specified by its unique identifier. This name is presented in the viewer's user interface.

Syntax

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

'Declaration
 
Public Function SetOCGTitle( _
   ByVal OCGId As Integer, _
   ByVal Title As String _
) As GdPictureStatus

public GdPictureStatus SetOCGTitle( 
   int OCGId,
   string Title
)

public function SetOCGTitle( 
    OCGId: Integer;
    Title: String
): GdPictureStatus;

public function SetOCGTitle( 
   OCGId : int,
   Title : String
) : GdPictureStatus;

public: GdPictureStatus SetOCGTitle( 
   int OCGId,
   string* Title
)

public:
GdPictureStatus SetOCGTitle( 
   int OCGId,
   String^ Title
)

Parameters

OCGId: The unique identifier of the required OCG entry. You can obtain this identifier using the GetOCG method.
Title: The new title to be used for the specified optional content group.

Return Value

A member of the GdPictureStatus enumeration. If the method has been successfully followed, then the return value is GdPictureStatus.OK.

We strongly recommend always checking this status first.

Remarks

This method is only allowed for use with non-encrypted documents.

Example

How to change the title of the specified layer in the PDF document.

VB.NET
C#

Dim caption As String = "Example: SetOCGTitle"
Dim gdpicturePDF As New GdPicturePDF()
'Please see the example of the SetImageOptional() method for the test_ImageLayer.pdf file.
If gdpicturePDF.LoadFromFile("test_ImageLayer.pdf", False) = GdPictureStatus.OK Then
    Dim ocgCount As Integer = gdpicturePDF.GetOCGCount()
    Dim status As GdPictureStatus = gdpicturePDF.GetStat()
    If (status = GdPictureStatus.OK) AndAlso (ocgCount > 0) Then
        Dim ocgID As Integer = gdpicturePDF.GetOCG(0)
        status = gdpicturePDF.GetStat()
        If status = GdPictureStatus.OK Then
            If (gdpicturePDF.SetOCGTitle(ocgID, "Updated layer") = GdPictureStatus.OK) AndAlso
               (gdpicturePDF.SetOCGLockedState(ocgID, False) = GdPictureStatus.OK) AndAlso
               (gdpicturePDF.SetOCGZoomMin(ocgID, 0) = GdPictureStatus.OK) AndAlso
               (gdpicturePDF.SetOCGZoomMax(ocgID, 1) = GdPictureStatus.OK) Then
                If gdpicturePDF.SaveToFile("test_UpdatedLayer.pdf") = GdPictureStatus.OK Then
                    MessageBox.Show("The example HAS been followed successfully and the file has been saved.", caption)
                Else
                    MessageBox.Show("The example HAS been followed successfully, but the file can't be saved. Status: " + gdpicturePDF.GetStat().ToString(), caption)
                End If
            Else
                MessageBox.Show("Setting up layer's options has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
            End If
        Else
            MessageBox.Show("The GetOCG() method has failed with the status: " + status.ToString(), caption)
        End If
    Else
        MessageBox.Show("The GetOCGCount() method has failed with the status: " + status.ToString(), caption)
    End If
Else
    MessageBox.Show("The file can't be loaded.", caption)
End If
gdpicturePDF.Dispose()

string caption = "Example: SetOCGTitle";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
//Please see the example of the SetImageOptional() method for the test_ImageLayer.pdf file.
if (gdpicturePDF.LoadFromFile("test_ImageLayer.pdf", false) == GdPictureStatus.OK)
{
    int ocgCount = gdpicturePDF.GetOCGCount();
    GdPictureStatus status = gdpicturePDF.GetStat();
    if ((status == GdPictureStatus.OK) && (ocgCount > 0))
    {
        int ocgID = gdpicturePDF.GetOCG(0);
        status = gdpicturePDF.GetStat();
        if (status == GdPictureStatus.OK)
        {
            if ((gdpicturePDF.SetOCGTitle(ocgID, "Updated layer") == GdPictureStatus.OK) &&
                (gdpicturePDF.SetOCGLockedState(ocgID, false) == GdPictureStatus.OK) &&
                (gdpicturePDF.SetOCGZoomMin(ocgID, 0) == GdPictureStatus.OK) &&
                (gdpicturePDF.SetOCGZoomMax(ocgID, 1) == GdPictureStatus.OK))
            {
                if (gdpicturePDF.SaveToFile("test_UpdatedLayer.pdf") == GdPictureStatus.OK)
                {
                    MessageBox.Show("The example HAS been followed successfully and the file has been saved.", caption);
                }
                else
                {
                    MessageBox.Show("The example HAS been followed successfully, but the file can't be saved. Status: " + gdpicturePDF.GetStat().ToString(), caption);
                }
            }
            else
            {
                MessageBox.Show("Setting up layer's options has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
            }
        }
        else
        {
            MessageBox.Show("The GetOCG() method has failed with the status: " + status.ToString(), caption);
        }
    }
    else
    {
        MessageBox.Show("The GetOCGCount() method has failed with the status: " + status.ToString(), caption);
    }
}
else
{
    MessageBox.Show("The file can't be loaded.", caption);
}
gdpicturePDF.Dispose();

Reference

GdPicturePDF Class
GdPicturePDF Members
GetOCGCount Method
GetOCG Method
SetOCGExportState Method
SetOCGLockedState Method
SetOCGPrintState Method
SetOCGViewState Method
SetOCGZoomMin Method
SetOCGZoomMax Method