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





In This Topic
GdPicture14 Namespace / GdPicturePDF Class / GetAnnotationName Method

GetAnnotationName Method (GdPicturePDF)

In This Topic
Returns the annotation name of a required annotation object specified by its index related to the currently selected page of the loaded PDF document. It is a text string, corresponding to the NM entry in the annotation dictionary (see PDF Reference, Section "Annotation Dictionaries"), uniquely identifying the annotation among all the annotations on its page. You can use this attribute, for example, to precisely identify the annotation in third-party software.
Syntax
'Declaration

 


Public Function GetAnnotationName( _

   ByVal AnnotationIdx As Integer _

) As String
public string GetAnnotationName( 

   int AnnotationIdx

)
public function GetAnnotationName( 

    AnnotationIdx: Integer

): String; 
public function GetAnnotationName( 

   AnnotationIdx : int

) : String;
public: string* GetAnnotationName( 

   int AnnotationIdx

) 
public:

String^ GetAnnotationName( 

   int AnnotationIdx

)

Parameters

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

Return Value

The annotation name of the specified annotation object. The 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 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 SelectPage method before applying an annotation index.

Be aware that this attribute is optional, for more details please refer to the NM entry in the annotation dictionary in the PDF Reference.

Example
How to get the value of the annotation name attribute for further use. 
Dim caption As String = "Example: GetAnnotationName"

Dim gdpicturePDF As GdPicturePDF = New GdPicturePDF()

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

If status = GdPictureStatus.OK Then

    Dim annotname As String = Nothing

    Dim annotCount As Integer = 0

    Dim pageCount As Integer = gdpicturePDF.GetPageCount()

    For i As Integer = 1 To pageCount

        If gdpicturePDF.SelectPage(i) <> GdPictureStatus.OK Then Exit For

        annotCount = gdpicturePDF.GetAnnotationCount()

        If gdpicturePDF.GetStat() <> GdPictureStatus.OK Then Exit For

        If annotCount = 0 Then Continue For

        For j As Integer = 0 To annotCount - 1

            annotname = gdpicturePDF.GetAnnotationName(j)

            If gdpicturePDF.GetStat() = GdPictureStatus.OK Then

                If annotname.Equals("required_annotation_name") Then status = gdpicturePDF.SetAnnotationOpacity(j, 0)

                If status <> GdPictureStatus.OK Then Exit For

            ElseIf gdpicturePDF.GetStat() <> GdPictureStatus.PropertyNotFound Then

                'The annotation name attribut is optional.

                Exit For

            End If

        Next

        If (gdpicturePDF.GetStat() <> GdPictureStatus.OK) AndAlso (gdpicturePDF.GetStat() <> GdPictureStatus.PropertyNotFound) Then Exit For

    Next

    If gdpicturePDF.GetStat() = GdPictureStatus.OK Then

        status = gdpicturePDF.SaveToFile("test_annotnames.pdf")

        If status = 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: " + status.ToString(), caption)

        End If

    Else

        MessageBox.Show("The example has failed. Status: " + gdpicturePDF.GetStat().ToString(), caption)

    End If

Else

    MessageBox.Show("The file can't be loaded. Status: " + status.ToString(), caption)

End If

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

GdPicturePDF gdpicturePDF = new GdPicturePDF();

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

if (status == GdPictureStatus.OK)

{

    string annotname = null;

    int annotCount = 0;

    int pageCount = gdpicturePDF.GetPageCount();

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

    {

        if (gdpicturePDF.SelectPage(i) != GdPictureStatus.OK) break;

        annotCount = gdpicturePDF.GetAnnotationCount();

        if (gdpicturePDF.GetStat() != GdPictureStatus.OK) break;

        if (annotCount == 0) continue;

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

        {

            annotname = gdpicturePDF.GetAnnotationName(j);

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

            {

                if (annotname.Equals("required_annotation_name"))

                    status = gdpicturePDF.SetAnnotationOpacity(j, 0);

                if (status != GdPictureStatus.OK) break;

            }

            else

                //The annotation name attribut is optional.

                if (gdpicturePDF.GetStat() != GdPictureStatus.PropertyNotFound) break;

        }

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

            (gdpicturePDF.GetStat() != GdPictureStatus.PropertyNotFound))

            break;

    }

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

    {

        status = gdpicturePDF.SaveToFile("test_annotnames.pdf");

        if (status == 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: " + status.ToString(), caption);

    }

    else

        MessageBox.Show("The example has failed. Status: " + gdpicturePDF.GetStat().ToString(), caption);

}

else

    MessageBox.Show("The file can't be loaded. Status: " + status.ToString(), caption);

gdpicturePDF.Dispose();
See Also

Reference

GdPicturePDF Class
GdPicturePDF Members
GetAnnotationCount Method
GetAnnotationSubType Method
GetAnnotationTitle Method
SetAnnotationName Method