BeginMarkedContentSequence Method (GdPicturePDF)
Begins a marked content sequence of operations in the page content associated to a structure element (tag),
that is specified by its unique tag's identifier related to the document's tag structure tree of the currently loaded PDF document.
public function BeginMarkedContentSequence(
: Integer;
: String
): GdPictureStatus;
public function BeginMarkedContentSequence(
: int,
: String
) : GdPictureStatus;
'Declaration
Public Function BeginMarkedContentSequence( _
ByVal As Integer, _
ByVal As String _
) As GdPictureStatus
Parameters
- TagID
- A unique tag identifier of the tag's tree element to be associated with the specified marked content sequence element.
- StructType
- A name of the structure type for the newly created marked content sequence element.
Please refer to the PDF Reference, Section "Standard Structure Types", for the names of the standard structure types.
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.
How to create a marked content sequence structure element of the Paragraph like category (tag type "P") for the simple text in the paragraph.
Dim caption As String = "Example: BeginMarkedContentSequence"
Using gdpicturePDF As GdPicturePDF = New GdPicturePDF()
If (gdpicturePDF.NewPDF(PdfConformance.PDF_UA_1) = GdPictureStatus.OK) AndAlso
(gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) = GdPictureStatus.OK) Then
gdpicturePDF.SetOrigin(PdfOrigin.PdfOriginTopLeft)
'This is required to have a valid PDF_UA document.
gdpicturePDF.SetTitle("My first PDF/UA document")
Dim fontResName As String = gdpicturePDF.AddTrueTypeFontU("Arial", False, False, True)
If (gdpicturePDF.GetStat() = GdPictureStatus.OK) AndAlso
(gdpicturePDF.SetFillColor(Color.Blue) = GdPictureStatus.OK) AndAlso
(gdpicturePDF.SetTextSize(16) = GdPictureStatus.OK) Then
Dim tagRootID As Integer = gdpicturePDF.GetTagRootID()
If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
Dim tagParagraph As Integer = gdpicturePDF.NewTag(tagRootID, "P")
If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
If (gdpicturePDF.BeginMarkedContentSequence(tagParagraph, "P") = GdPictureStatus.OK) AndAlso
(gdpicturePDF.DrawText(fontResName, 50, 50, "This is text that is tagged as paragraph!") = GdPictureStatus.OK) AndAlso
(gdpicturePDF.EndMarkedContent() = GdPictureStatus.OK) Then
Dim status As GdPictureStatus = gdpicturePDF.SaveToFile("test_tagged.pdf")
If status = GdPictureStatus.OK Then
MessageBox.Show("Your tagged PDF document has been successfully created.", caption)
Else
MessageBox.Show("The file can't be saved. Status: " + status.ToString(), caption)
End If
Else
MessageBox.Show("Tagging of the paragraph has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
End If
Else
MessageBox.Show("The NewTag() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
End If
Else
MessageBox.Show("The GetTagRootID() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
End If
Else
MessageBox.Show("Setting text properties has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption)
End If
gdpicturePDF.CloseDocument()
Else
MessageBox.Show("The new document can't be created. Status: " + gdpicturePDF.GetStat().ToString(), caption)
End If
End Using
string caption = "Example: BeginMarkedContentSequence";
using (GdPicturePDF gdpicturePDF = new GdPicturePDF())
{
if ((gdpicturePDF.NewPDF(PdfConformance.PDF_UA_1) == GdPictureStatus.OK) &&
(gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) == GdPictureStatus.OK))
{
gdpicturePDF.SetOrigin(PdfOrigin.PdfOriginTopLeft);
//This is required to have a valid PDF_UA document.
gdpicturePDF.SetTitle("My first PDF/UA document");
string fontResName = gdpicturePDF.AddTrueTypeFontU("Arial", false, false, true);
if ((gdpicturePDF.GetStat() == GdPictureStatus.OK) &&
(gdpicturePDF.SetFillColor(Color.Blue) == GdPictureStatus.OK) &&
(gdpicturePDF.SetTextSize(16) == GdPictureStatus.OK))
{
int tagRootID = gdpicturePDF.GetTagRootID();
if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
{
int tagParagraph = gdpicturePDF.NewTag(tagRootID, "P");
if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
{
if ((gdpicturePDF.BeginMarkedContentSequence(tagParagraph, "P") == GdPictureStatus.OK) &&
(gdpicturePDF.DrawText(fontResName, 50, 50, "This is text that is tagged as paragraph!") == GdPictureStatus.OK) &&
(gdpicturePDF.EndMarkedContent() == GdPictureStatus.OK))
{
GdPictureStatus status = gdpicturePDF.SaveToFile("test_tagged.pdf");
if (status == GdPictureStatus.OK)
MessageBox.Show("Your tagged PDF document has been successfully created.", caption);
else
MessageBox.Show("The file can't be saved. Status: " + status.ToString(), caption);
}
else
MessageBox.Show("Tagging of the paragraph has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
}
else
MessageBox.Show("The NewTag() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
}
else
MessageBox.Show("The GetTagRootID() method has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
}
else
MessageBox.Show("Setting text properties has failed with the status: " + gdpicturePDF.GetStat().ToString(), caption);
gdpicturePDF.CloseDocument();
}
else
MessageBox.Show("The new document can't be created. Status: " + gdpicturePDF.GetStat().ToString(), caption);
}