The 0-based index of the required annotation within the current page. It must be a value from 0 to GdPicturePDF.GetAnnotationCount-1.
Example





In This Topic
GdPicture14 Namespace / GdPicturePDF Class / GetAnnotationContents Method

GetAnnotationContents Method (GdPicturePDF)

In This Topic
Returns the content (text or description) of a required annotation object specified by its index related to the currently selected page of the loaded PDF document.

It can be displayed text for the annotations, that support displaying text (like free text annotations) or an additional description for the other annotations in readable form. If the specified annotation is associated with an auxiliary pop-up window, it is the content of this pop-up window.

Syntax
'Declaration

 


Public Function GetAnnotationContents( _

   ByVal AnnotationIdx As Integer _

) As String
public string GetAnnotationContents( 

   int AnnotationIdx

)
public function GetAnnotationContents( 

    AnnotationIdx: Integer

): String; 
public function GetAnnotationContents( 

   AnnotationIdx : int

) : String;
public: string* GetAnnotationContents( 

   int AnnotationIdx

) 
public:

String^ GetAnnotationContents( 

   int AnnotationIdx

)

Parameters

AnnotationIdx
The 0-based index of the required annotation within the current page. It must be a value from 0 to GdPicturePDF.GetAnnotationCount-1.

Return Value

The content of the specified annotation object in a meaning described in the Summary section. The GdPicturePDF.GetStat method can be subsequently used to determine if this method has been successful.
Remarks
This method is only allowed for use with non-encrypted documents.

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

Please always ensure that you have selected the correct page using the GdPicturePDF.SelectPage method before applying an annotation index.

Example
How to retrieve the title, the subject and the content of all text annotation objects within the PDF document. 
Dim caption As String = "Example: GetAnnotationcontent"

Dim gdpicturePDF As GdPicturePDF = New GdPicturePDF()

Dim status As GdPictureStatus = gdpicturePDF.LoadFromFile("test.pdf", False)

If status = GdPictureStatus.OK Then

    Dim message As String = ""

    Dim pageCount As Integer = gdpicturePDF.GetPageCount()

    For i As Integer = 1 To pageCount

        status = gdpicturePDF.SelectPage(i)

        If status = GdPictureStatus.OK Then

            message = message + "The page nr." + i.ToString()

            Dim annotCount As Integer = gdpicturePDF.GetAnnotationCount()

            status = gdpicturePDF.GetStat()

            If status = GdPictureStatus.OK Then

                If annotCount = 0 Then

                    message = message + " does not contain any annotations."

                Else

                    Dim annotSubType As String = "", title As String = "", subject As String = "", content As String = ""

                    For j As Integer = 0 To annotCount - 1

                        annotSubType = gdpicturePDF.GetAnnotationSubType(j)

                        If gdpicturePDF.GetStat() = GdPictureStatus.OK Then

                            If annotSubType.Equals("Text") Then

                                message = message + vbCrLf + "AnnotID: " + j.ToString()

                                message = message + vbCrLf + "    title: "

                                title = gdpicturePDF.GetAnnotationTitle(j)

                                status = gdpicturePDF.GetStat()

                                If status = GdPictureStatus.OK Then message = message + title Else message = message + status.ToString()

                                message = message + "    subject: "

                                subject = gdpicturePDF.GetAnnotationSubject(j)

                                status = gdpicturePDF.GetStat()

                                If status = GdPictureStatus.OK Then message = message + subject Else message = message + status.ToString()

                                message = message + "    content: "

                                content = gdpicturePDF.GetAnnotationContents(j)

                                status = gdpicturePDF.GetStat()

                                If status = GdPictureStatus.OK Then message = message + content Else message = message + status.ToString()

                            End If

                        Else

                            message = message + vbCrLf + "The GetAnnotationSubType() method has failed with the status: " + status.ToString()

                        End If

                    Next

                End If

            Else

                message = message + ": the GetAnnotationCount() method has failed with the status: " + status.ToString()

            End If

            message = message + vbCrLf

        Else

            message = message + "The SelectPage(" + i.ToString() + ") method has failed with the status: " + status.ToString() + vbCrLf

        End If

    Next

    MessageBox.Show(message, caption)

Else

    MessageBox.Show("The file can't be loaded.", caption)

End If

gdpicturePDF.Dispose()
string caption = "Example: GetAnnotationContents";

GdPicturePDF gdpicturePDF = new GdPicturePDF();

GdPictureStatus status = gdpicturePDF.LoadFromFile("test.pdf", false);

if (status == GdPictureStatus.OK)

{

    string message = "";

    int pageCount = gdpicturePDF.GetPageCount();

    for (int i = 1; i <= pageCount; i++)

    {

        status = gdpicturePDF.SelectPage(i);

        if (status == GdPictureStatus.OK)

        {

            message = message + "The page nr." + i.ToString();

            int annotCount = gdpicturePDF.GetAnnotationCount();

            status = gdpicturePDF.GetStat();

            if (status == GdPictureStatus.OK)

            {

                if (annotCount == 0)

                {

                    message = message + " does not contain any annotations.";

                }

                else

                {

                    string annotSubType = "", title = "", subject = "", content = "";

                    for (int j = 0; j < annotCount; j++)

                    {

                        annotSubType = gdpicturePDF.GetAnnotationSubType(j);

                        if (gdpicturePDF.GetStat() == GdPictureStatus.OK)

                        {

                            if (annotSubType.Equals("Text"))

                            {

                                message = message + "\nAnnotID: " + j.ToString();

            

                                message = message + "\n    title: ";

                                title = gdpicturePDF.GetAnnotationTitle(j);

                                status = gdpicturePDF.GetStat();

                                if (status == GdPictureStatus.OK) message = message + title;

                                else message = message + status.ToString();

            

                                message = message + "    subject: ";

                                subject = gdpicturePDF.GetAnnotationSubject(j);

                                status = gdpicturePDF.GetStat();

                                if (status == GdPictureStatus.OK) message = message + subject;

                                else message = message + status.ToString();

            

                                message = message + "    content: ";

                                content = gdpicturePDF.GetAnnotationContents(j);

                                status = gdpicturePDF.GetStat();

                                if (status == GdPictureStatus.OK) message = message + content;

                                else message = message + status.ToString();

                            }

                        }

                        else

                        {

                            message = message + "\nThe GetAnnotationSubType() method has failed with the status: " + status.ToString();

                        }

                    }

                }

            }

            else

                message = message + ": the GetAnnotationCount() method has failed with the status: " + status.ToString();

            

            message = message + "\n";

        }

        else

            message = message + "The SelectPage(" + i.ToString() + ") method has failed with the status: " + status.ToString() + "\n";

    }

    MessageBox.Show(message, caption);

}

else

{

    MessageBox.Show("The file can't be loaded.", caption);

}

gdpicturePDF.Dispose();
Example
How to retrieve the title, the subject and the content of all text annotation objects within the PDF document. Dim caption As String = "Example: GetAnnotationcontent" Dim gdpicturePDF As GdPicturePDF = New GdPicturePDF() Dim status As GdPictureStatus = gdpicturePDF.LoadFromFile("test.pdf", False) If status = GdPictureStatus.OK Then Dim message As String = "" Dim pageCount As Integer = gdpicturePDF.GetPageCount() For i As Integer = 1 To pageCount status = gdpicturePDF.SelectPage(i) If status = GdPictureStatus.OK Then message = message + "The page nr." + i.ToString() Dim annotCount As Integer = gdpicturePDF.GetAnnotationCount() status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then If annotCount = 0 Then message = message + " does not contain any annotations." Else Dim annotSubType As String = "", title As String = "", subject As String = "", content As String = "" For j As Integer = 0 To annotCount - 1 annotSubType = gdpicturePDF.GetAnnotationSubType(j) If gdpicturePDF.GetStat() = GdPictureStatus.OK Then If annotSubType.Equals("Text") Then message = message + vbCrLf + "AnnotID: " + j.ToString() message = message + vbCrLf + " title: " title = gdpicturePDF.GetAnnotationTitle(j) status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then message = message + title Else message = message + status.ToString() message = message + " subject: " subject = gdpicturePDF.GetAnnotationSubject(j) status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then message = message + subject Else message = message + status.ToString() message = message + " content: " content = gdpicturePDF.GetAnnotationContents(j) status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then message = message + content Else message = message + status.ToString() End If Else message = message + vbCrLf + "The GetAnnotationSubType() method has failed with the status: " + status.ToString() End If Next End If Else message = message + ": the GetAnnotationCount() method has failed with the status: " + status.ToString() End If message = message + vbCrLf Else message = message + "The SelectPage(" + i.ToString() + ") method has failed with the status: " + status.ToString() + vbCrLf End If Next MessageBox.Show(message, caption) Else MessageBox.Show("The file can't be loaded.", caption) End If gdpicturePDF.Dispose() string caption = "Example: GetAnnotationContents"; GdPicturePDF gdpicturePDF = new GdPicturePDF(); GdPictureStatus status = gdpicturePDF.LoadFromFile("test.pdf", false); if (status == GdPictureStatus.OK) { string message = ""; int pageCount = gdpicturePDF.GetPageCount(); for (int i = 1; i <= pageCount; i++) { status = gdpicturePDF.SelectPage(i); if (status == GdPictureStatus.OK) { message = message + "The page nr." + i.ToString(); int annotCount = gdpicturePDF.GetAnnotationCount(); status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) { if (annotCount == 0) { message = message + " does not contain any annotations."; } else { string annotSubType = "", title = "", subject = "", content = ""; for (int j = 0; j < annotCount; j++) { annotSubType = gdpicturePDF.GetAnnotationSubType(j); if (gdpicturePDF.GetStat() == GdPictureStatus.OK) { if (annotSubType.Equals("Text")) { message = message + "\nAnnotID: " + j.ToString(); message = message + "\n title: "; title = gdpicturePDF.GetAnnotationTitle(j); status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) message = message + title; else message = message + status.ToString(); message = message + " subject: "; subject = gdpicturePDF.GetAnnotationSubject(j); status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) message = message + subject; else message = message + status.ToString(); message = message + " content: "; content = gdpicturePDF.GetAnnotationContents(j); status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) message = message + content; else message = message + status.ToString(); } } else { message = message + "\nThe GetAnnotationSubType() method has failed with the status: " + status.ToString(); } } } } else message = message + ": the GetAnnotationCount() method has failed with the status: " + status.ToString(); message = message + "\n"; } else message = message + "The SelectPage(" + i.ToString() + ") method has failed with the status: " + status.ToString() + "\n"; } MessageBox.Show(message, caption); } else { MessageBox.Show("The file can't be loaded.", caption); } gdpicturePDF.Dispose();
See Also

Reference

GdPicturePDF Class
GdPicturePDF Members
GetAnnotationCount Method
GetStat Method
SelectPage Method
GetStat Method
GetAnnotationCount Method
GetAnnotationSubType Method
SetAnnotationContents Method
GetAnnotationTitle Method
GetAnnotationSubject Method