GetModificationDate Method (GdPicturePDF)

In This Topic

Returns the date and time the currently loaded PDF document was most recently modified, as it is set in the document information dictionary.

Syntax

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

'Declaration
 
Public Function GetModificationDate() As String

public string GetModificationDate()

public function GetModificationDate(): String;

public function GetModificationDate() : String;

public: string* GetModificationDate();

public:
String^ GetModificationDate();

Return Value

The value of the document's ModDate property as a string. 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.

Example

How to find out the date and time the PDF document was last modified.

VB.NET
C#

Using gdpicturePDF As New GdPicturePDF()
    If gdpicturePDF.LoadFromFile("test.pdf", False) = GdPictureStatus.OK Then
        Dim modificationDate As String = gdpicturePDF.GetModificationDate()
        Dim status As GdPictureStatus = gdpicturePDF.GetStat()
        If status = GdPictureStatus.OK Then
            MessageBox.Show("The date and time this PDF was last modified: " + modificationDate, "Example: GetModificationDate")
        Else
            MessageBox.Show("The GetModificationDate() method has failed with the status: " + status.ToString(), "Example: GetModificationDate")
        End If
    Else
        MessageBox.Show("The file can't be loaded.", "Example: GetModificationDate")
    End If
End Using

using (GdPicturePDF gdpicturePDF = new GdPicturePDF())
{
    if (gdpicturePDF.LoadFromFile("test.pdf", false) == GdPictureStatus.OK)
    {
        string modificationDate = gdpicturePDF.GetModificationDate();
        GdPictureStatus status = gdpicturePDF.GetStat();
        if (status == GdPictureStatus.OK)
        {
            MessageBox.Show("The date and time this PDF was last modified: " + modificationDate, "Example: GetModificationDate");
        }
        else
        {
            MessageBox.Show("The GetModificationDate() method has failed with the status: " + status.ToString(), "Example: GetModificationDate");
        }
    }
    else
    {
        MessageBox.Show("The file can't be loaded.", "Example: GetModificationDate");
    }
}

Reference

GdPicturePDF Class
GdPicturePDF Members
LoadFromFile Method
GetCreationDate Method
GetCreator Method