GdPicture.NET.14
GdPicture14 Namespace / GdPicturePDF Class / GetFileAttachmentAnnotCreationDate Method
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
GetFileAttachmentAnnotCreationDate Method (GdPicturePDF)
In This Topic
Gets the creation date of the embedded file (the attachment's creation date) associated with the specified annotation related to the currently selected page of the loaded PDF document. You need to identify the annotation object by its 0-based index, that is always related to the currently selected page.
Syntax
'Declaration
 

Public Function GetFileAttachmentAnnotCreationDate( _
   ByVal AnnotationIdx As Integer _
) As String
public string GetFileAttachmentAnnotCreationDate( 
   int AnnotationIdx
)
public function GetFileAttachmentAnnotCreationDate( 
    AnnotationIdx: Integer
): String; 
public function GetFileAttachmentAnnotCreationDate( 
   AnnotationIdx : int
) : String;
public: string* GetFileAttachmentAnnotCreationDate( 
   int AnnotationIdx
) 
public:
String^ GetFileAttachmentAnnotCreationDate( 
   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 creation date of the embedded file associated with the specified annotation. 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 all files and their properties associated with all file attachment annotations in the loaded PDF document. 
Dim caption As String = "Example: GetFileAttachmentAnnotCreationDate"
Dim gdpicturePDF As GdPicturePDF = New GdPicturePDF()
If gdpicturePDF.LoadFromFile("test.pdf", False) = GdPictureStatus.OK Then
    Dim pageCount As Integer = gdpicturePDF.GetPageCount()
    If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
        Dim message As String = ""
        Dim status As GdPictureStatus = GdPictureStatus.OK
        For page As Integer = 1 To pageCount
            message = message + "Page nr." + page.ToString()
            status = gdpicturePDF.SelectPage(page)
            If status = GdPictureStatus.OK Then
                Dim annotCount As Integer = gdpicturePDF.GetAnnotationCount()
                status = gdpicturePDF.GetStat()
                If status = GdPictureStatus.OK Then
                    Dim subtype As String = ""
                    For annotID As Integer = 0 To annotCount - 1
                        subtype = gdpicturePDF.GetAnnotationSubType(annotID)
                        status = gdpicturePDF.GetStat()
                        If (status = GdPictureStatus.OK) AndAlso (subtype.Equals("FileAttachment")) Then
                            message = message + vbCrLf + "AnnotID: " + annotID.ToString()
                            Dim filedata As Byte() = Nothing
                            Dim filesize As Integer = 0
                            Dim fileDesc As String = "", crDate As String = "", modDate As String = ""
                            Dim filename As String = gdpicturePDF.GetFileAttachmentAnnotFileName(annotID)
                            status = gdpicturePDF.GetStat()
                            If status = GdPictureStatus.OK Then filesize = gdpicturePDF.GetFileAttachmentAnnotFileSize(annotID) Else status = gdpicturePDF.GetStat()
                            If status = GdPictureStatus.OK Then fileDesc = gdpicturePDF.GetFileAttachmentAnnotFileDescription(annotID) Else status = gdpicturePDF.GetStat()
                            If status = GdPictureStatus.OK Then crDate = gdpicturePDF.GetFileAttachmentAnnotCreationDate(annotID) Else status = gdpicturePDF.GetStat()
                            If status = GdPictureStatus.OK Then modDate = gdpicturePDF.GetFileAttachmentAnnotModificationDate(annotID) Else status = gdpicturePDF.GetStat()
                            If status = GdPictureStatus.OK Then status = gdpicturePDF.GetFileAttachmentAnnotEmbeddedFile(annotID, filedata) Else status = gdpicturePDF.GetStat()
                            If status = GdPictureStatus.OK Then
                                Using file As System.IO.Stream = System.IO.File.OpenWrite(filename)
                                    file.Write(filedata, 0, filesize)
                                End Using
                                message = message + "  file: " + filename + "  desc: " + fileDesc + "  size: " + filesize.ToString() +
                                          "  creation: " + crDate + "  modif: " + modDate
                            End If
                        End If
                        message = message + "  status: " + status.ToString()
                    Next
                Else
                    message = message + "GetAnnotationCount - status: " + status.ToString()
                End If
            Else
                message = message + "SelectPage - status: " + status.ToString()
            End If
            message += vbCrLf
        Next
        MessageBox.Show(message, caption)
    Else
        MessageBox.Show("The GetPageCount() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
    End If
Else
    MessageBox.Show("The file can't be loaded.", caption)
End If
gdpicturePDF.Dispose()
string caption = "Example: GetFileAttachmentAnnotCreationDate";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
if (gdpicturePDF.LoadFromFile("test.pdf", false) == GdPictureStatus.OK)
{
    int pageCount = gdpicturePDF.GetPageCount();
    if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
    {
        string message = "";
        GdPictureStatus status = GdPictureStatus.OK;
        for (int page = 1; page <= pageCount; page++)
        {
            message = message + "Page nr." + page.ToString();
            status = gdpicturePDF.SelectPage(page);
            if (status == GdPictureStatus.OK)
            {
                int annotCount = gdpicturePDF.GetAnnotationCount();
                status = gdpicturePDF.GetStat();
                if (status == GdPictureStatus.OK)
                {
                    string subtype = "";
                    for (int annotID = 0; annotID < annotCount; annotID++)
                    {
                        subtype = gdpicturePDF.GetAnnotationSubType(annotID);
                        status = gdpicturePDF.GetStat();
                        if ((status == GdPictureStatus.OK) && (subtype.Equals("FileAttachment")))
                        {
                            message = message + "\nAnnotID: " + annotID.ToString();
                            byte[] filedata = null;
                            int filesize = 0;
                            string fileDesc = "", crDate = "", modDate = "";
                            string filename = gdpicturePDF.GetFileAttachmentAnnotFileName(annotID);
                            status = gdpicturePDF.GetStat();
                            if (status == GdPictureStatus.OK) filesize = gdpicturePDF.GetFileAttachmentAnnotFileSize(annotID);
                            else status = gdpicturePDF.GetStat();
                            if (status == GdPictureStatus.OK) fileDesc = gdpicturePDF.GetFileAttachmentAnnotFileDescription(annotID);
                            else status = gdpicturePDF.GetStat();
                            if (status == GdPictureStatus.OK) crDate = gdpicturePDF.GetFileAttachmentAnnotCreationDate(annotID);
                            else status = gdpicturePDF.GetStat();
                            if (status == GdPictureStatus.OK) modDate = gdpicturePDF.GetFileAttachmentAnnotModificationDate(annotID);
                            else status = gdpicturePDF.GetStat();
                            if (status == GdPictureStatus.OK) status = gdpicturePDF.GetFileAttachmentAnnotEmbeddedFile(annotID, ref filedata);
                            else status = gdpicturePDF.GetStat();
                            if (status == GdPictureStatus.OK)
                            {
                                using (System.IO.Stream file = File.OpenWrite(filename))
                                {
                                    file.Write(filedata, 0, filesize);
                                }
                                message = message + "  file: " + filename + "  desc: " + fileDesc + "  size: " + filesize.ToString() +
                                          "  creation: " + crDate + "  modif: " + modDate;
                            }
                        }
                        message = message + "  status: " + status.ToString();
                    }
                }
                else
                    message = message + "GetAnnotationCount - status: " + status.ToString();
            }
            else
                message = message + "SelectPage - status: " + status.ToString();
            message += "\n";
        }
        MessageBox.Show(message, caption);
    }
    else
        MessageBox.Show("The GetPageCount() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
}
else
    MessageBox.Show("The file can't be loaded.", caption);
gdpicturePDF.Dispose();
Example
How to retrieve all files and their properties associated with all file attachment annotations in the loaded PDF document. Dim caption As String = "Example: GetFileAttachmentAnnotCreationDate" Dim gdpicturePDF As GdPicturePDF = New GdPicturePDF() If gdpicturePDF.LoadFromFile("test.pdf", False) = GdPictureStatus.OK Then Dim pageCount As Integer = gdpicturePDF.GetPageCount() If gdpicturePDF.GetStat() = GdPictureStatus.OK Then Dim message As String = "" Dim status As GdPictureStatus = GdPictureStatus.OK For page As Integer = 1 To pageCount message = message + "Page nr." + page.ToString() status = gdpicturePDF.SelectPage(page) If status = GdPictureStatus.OK Then Dim annotCount As Integer = gdpicturePDF.GetAnnotationCount() status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then Dim subtype As String = "" For annotID As Integer = 0 To annotCount - 1 subtype = gdpicturePDF.GetAnnotationSubType(annotID) status = gdpicturePDF.GetStat() If (status = GdPictureStatus.OK) AndAlso (subtype.Equals("FileAttachment")) Then message = message + vbCrLf + "AnnotID: " + annotID.ToString() Dim filedata As Byte() = Nothing Dim filesize As Integer = 0 Dim fileDesc As String = "", crDate As String = "", modDate As String = "" Dim filename As String = gdpicturePDF.GetFileAttachmentAnnotFileName(annotID) status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then filesize = gdpicturePDF.GetFileAttachmentAnnotFileSize(annotID) Else status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then fileDesc = gdpicturePDF.GetFileAttachmentAnnotFileDescription(annotID) Else status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then crDate = gdpicturePDF.GetFileAttachmentAnnotCreationDate(annotID) Else status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then modDate = gdpicturePDF.GetFileAttachmentAnnotModificationDate(annotID) Else status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then status = gdpicturePDF.GetFileAttachmentAnnotEmbeddedFile(annotID, filedata) Else status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then Using file As System.IO.Stream = System.IO.File.OpenWrite(filename) file.Write(filedata, 0, filesize) End Using message = message + " file: " + filename + " desc: " + fileDesc + " size: " + filesize.ToString() + " creation: " + crDate + " modif: " + modDate End If End If message = message + " status: " + status.ToString() Next Else message = message + "GetAnnotationCount - status: " + status.ToString() End If Else message = message + "SelectPage - status: " + status.ToString() End If message += vbCrLf Next MessageBox.Show(message, caption) Else MessageBox.Show("The GetPageCount() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption) End If Else MessageBox.Show("The file can't be loaded.", caption) End If gdpicturePDF.Dispose() string caption = "Example: GetFileAttachmentAnnotCreationDate"; GdPicturePDF gdpicturePDF = new GdPicturePDF(); if (gdpicturePDF.LoadFromFile("test.pdf", false) == GdPictureStatus.OK) { int pageCount = gdpicturePDF.GetPageCount(); if (gdpicturePDF.GetStat() == GdPictureStatus.OK) { string message = ""; GdPictureStatus status = GdPictureStatus.OK; for (int page = 1; page <= pageCount; page++) { message = message + "Page nr." + page.ToString(); status = gdpicturePDF.SelectPage(page); if (status == GdPictureStatus.OK) { int annotCount = gdpicturePDF.GetAnnotationCount(); status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) { string subtype = ""; for (int annotID = 0; annotID < annotCount; annotID++) { subtype = gdpicturePDF.GetAnnotationSubType(annotID); status = gdpicturePDF.GetStat(); if ((status == GdPictureStatus.OK) && (subtype.Equals("FileAttachment"))) { message = message + "\nAnnotID: " + annotID.ToString(); byte[] filedata = null; int filesize = 0; string fileDesc = "", crDate = "", modDate = ""; string filename = gdpicturePDF.GetFileAttachmentAnnotFileName(annotID); status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) filesize = gdpicturePDF.GetFileAttachmentAnnotFileSize(annotID); else status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) fileDesc = gdpicturePDF.GetFileAttachmentAnnotFileDescription(annotID); else status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) crDate = gdpicturePDF.GetFileAttachmentAnnotCreationDate(annotID); else status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) modDate = gdpicturePDF.GetFileAttachmentAnnotModificationDate(annotID); else status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) status = gdpicturePDF.GetFileAttachmentAnnotEmbeddedFile(annotID, ref filedata); else status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) { using (System.IO.Stream file = File.OpenWrite(filename)) { file.Write(filedata, 0, filesize); } message = message + " file: " + filename + " desc: " + fileDesc + " size: " + filesize.ToString() + " creation: " + crDate + " modif: " + modDate; } } message = message + " status: " + status.ToString(); } } else message = message + "GetAnnotationCount - status: " + status.ToString(); } else message = message + "SelectPage - status: " + status.ToString(); message += "\n"; } MessageBox.Show(message, caption); } else MessageBox.Show("The GetPageCount() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), 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
GetFileAttachmentAnnotModificationDate Method
AddFileAttachmentAnnot Method
GetFileAttachmentAnnotEmbeddedFile Method

 

 

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