SetPageContent Method (GdPicturePDF)

In This Topic

Sets the content in the form of postscript data of the current page in the loaded PDF document.

Syntax

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

'Declaration
 
Public Function SetPageContent( _
   ByVal Content As String _
) As GdPictureStatus

public GdPictureStatus SetPageContent( 
   string Content
)

public function SetPageContent( 
    Content: String
): GdPictureStatus;

public function SetPageContent( 
   Content : String
) : GdPictureStatus;

public: GdPictureStatus SetPageContent( 
   string* Content
)

public:
GdPictureStatus SetPageContent( 
   String^ Content
)

Parameters

Content: The postscript content to reset the actual content of the currently selected page.

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 reset the postscript content of all pages in the PDF document. The content of each page is read from the separate file.

VB.NET
C#

Dim gdpicturePDF As New GdPicturePDF()
If gdpicturePDF.LoadFromFile("test.pdf", False) = GdPictureStatus.OK Then
    Dim count As Integer = gdpicturePDF.GetPageCount()
    Dim status As GdPictureStatus = gdpicturePDF.GetStat()
    If status = GdPictureStatus.OK Then
        Dim data As String = "", filename As String = "", message As String = ""
        For i As Integer = 1 To count
            status = gdpicturePDF.SelectPage(i)
            If status = GdPictureStatus.OK Then
                filename = "content_page" + i.ToString() + ".txt"
                data = System.IO.File.ReadAllText(filename)
                status = gdpicturePDF.SetPageContent(data)
                If status = GdPictureStatus.OK Then
                    message = message + "The page content for the page nr." + i.ToString() + " has been set successfully." + vbCrLf
                Else
                    message = message + "The SetPageContent() method has failed for the page nr." + i.ToString() + " with the status: " + status.ToString() + vbCrLf
                End If
            Else
                message = message + "The SelectPage() method has failed for the page nr." + i.ToString() + " with the status: " + status.ToString() + vbCrLf
            End If
        Next
        If gdpicturePDF.SaveToFile("test_SetPageContent.pdf") = GdPictureStatus.OK Then
            message = message + "The file has been saved."
        Else
            message = message + "The file can't be saved."
        End If
            
        MessageBox.Show(message, "Example: SetPageContent")
    Else
        MessageBox.Show("The GetPageCount() method has failed with the status: " + status.ToString(), "Example: SetPageContent")
    End If
Else
    MessageBox.Show("The file can't be loaded.", "Example: SetPageContent")
End If
gdpicturePDF.Dispose()

GdPicturePDF gdpicturePDF = new GdPicturePDF();
if (gdpicturePDF.LoadFromFile("test.pdf", false) == GdPictureStatus.OK)
{
    int count = gdpicturePDF.GetPageCount();
    GdPictureStatus status = gdpicturePDF.GetStat();
    if (status == GdPictureStatus.OK)
    {
        string data = "", filename = "", message = "";
        for (int i = 1; i <= count; i++)
        {
            status = gdpicturePDF.SelectPage(i);
            if (status == GdPictureStatus.OK)
            {
                filename = "content_page" + i.ToString() + ".txt";
                data = System.IO.File.ReadAllText(filename);
                status = gdpicturePDF.SetPageContent(data);
                if (status == GdPictureStatus.OK)
                    message = message + "The page content for the page nr." + i.ToString() + " has been set successfully.\n";
                else
                    message = message + "The SetPageContent() method has failed for the page nr." + i.ToString() + " with the status: " + status.ToString() + "\n";
            }
            else
                message = message + "The SelectPage() method has failed for the page nr." + i.ToString() + " with the status: " + status.ToString() + "\n";
        }
        if (gdpicturePDF.SaveToFile("test_SetPageContent.pdf") == GdPictureStatus.OK)
            message = message + "The file has been saved.";
        else
            message = message + "The file can't be saved.";
        MessageBox.Show(message, "Example: SetPageContent");
            
    }
    else
        MessageBox.Show("The GetPageCount() method has failed with the status: " + status.ToString(), "Example: SetPageContent");
}
else
    MessageBox.Show("The file can't be loaded.", "Example: SetPageContent");
gdpicturePDF.Dispose();

Reference

GdPicturePDF Class
GdPicturePDF Members
GetPageCount Method
SelectPage Method
GetCurrentPage Method
GetPageContent Method
GetPageText Method