GetAnnotationFlags Method (GdPicturePDF)
In This Topic
Returns the flags of a required annotation object specified by its index related to the currently selected page of the loaded PDF document.
These flags define various characteristics of the specified annotation.
Syntax
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
A bitwise combination of values of the PdfAnnotationFlag enumeration. The
GdPicturePDF.GetStat method can be subsequently used to determine if this method has been successful.
Example
How to find out the annotation's flags of all underline annotation objects within the PDF document.
Dim caption As String = "Example: GetAnnotationFlags"
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 = ""
Dim flags As PdfAnnotationFlag = PdfAnnotationFlag.PdfAnnotationFlagDefault
For j As Integer = 0 To annotCount - 1
annotSubType = gdpicturePDF.GetAnnotationSubType(j)
If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
If annotSubType.Equals("Underline") Then
message = message + vbCrLf + "AnnotID: " + j.ToString() + " flags: "
flags = gdpicturePDF.GetAnnotationFlags(j)
status = gdpicturePDF.GetStat()
If status = GdPictureStatus.OK Then
Dim res As PdfAnnotationFlag = flags And PdfAnnotationFlag.PdfAnnotationFlagHidden
message = message + vbCrLf + " hidden: " + (res <> 0).ToString()
res = flags And PdfAnnotationFlag.PdfAnnotationFlagLocked
message = message + " locked: " + (res <> 0).ToString()
res = flags And PdfAnnotationFlag.PdfAnnotationFlagPrint
message = message + " print: " + (res <> 0).ToString()
'You can check out other flags in the same way.
Else
message = message + status.ToString()
End If
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: GetAnnotationFlags";
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 = "";
PdfAnnotationFlag flags = PdfAnnotationFlag.PdfAnnotationFlagDefault;
for (int j = 0; j < annotCount; j++)
{
annotSubType = gdpicturePDF.GetAnnotationSubType(j);
if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
{
if (annotSubType.Equals("Underline"))
{
message = message + "\nAnnotID: " + j.ToString() + " flags: ";
flags = gdpicturePDF.GetAnnotationFlags(j);
status = gdpicturePDF.GetStat();
if (status == GdPictureStatus.OK)
{
PdfAnnotationFlag res = flags & PdfAnnotationFlag.PdfAnnotationFlagHidden;
message = message + "\n hidden: " + (res != 0).ToString();
res = flags & PdfAnnotationFlag.PdfAnnotationFlagLocked;
message = message + " locked: " + (res != 0).ToString();
res = flags & PdfAnnotationFlag.PdfAnnotationFlagPrint;
message = message + " print: " + (res != 0).ToString();
//You can check out other flags in the same way.
}
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 find out the annotation's flags of all underline annotation objects within the PDF document.
Dim caption As String = "Example: GetAnnotationFlags"
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 = ""
Dim flags As PdfAnnotationFlag = PdfAnnotationFlag.PdfAnnotationFlagDefault
For j As Integer = 0 To annotCount - 1
annotSubType = gdpicturePDF.GetAnnotationSubType(j)
If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
If annotSubType.Equals("Underline") Then
message = message + vbCrLf + "AnnotID: " + j.ToString() + " flags: "
flags = gdpicturePDF.GetAnnotationFlags(j)
status = gdpicturePDF.GetStat()
If status = GdPictureStatus.OK Then
Dim res As PdfAnnotationFlag = flags And PdfAnnotationFlag.PdfAnnotationFlagHidden
message = message + vbCrLf + " hidden: " + (res <> 0).ToString()
res = flags And PdfAnnotationFlag.PdfAnnotationFlagLocked
message = message + " locked: " + (res <> 0).ToString()
res = flags And PdfAnnotationFlag.PdfAnnotationFlagPrint
message = message + " print: " + (res <> 0).ToString()
'You can check out other flags in the same way.
Else
message = message + status.ToString()
End If
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: GetAnnotationFlags";
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 = "";
PdfAnnotationFlag flags = PdfAnnotationFlag.PdfAnnotationFlagDefault;
for (int j = 0; j < annotCount; j++)
{
annotSubType = gdpicturePDF.GetAnnotationSubType(j);
if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
{
if (annotSubType.Equals("Underline"))
{
message = message + "\nAnnotID: " + j.ToString() + " flags: ";
flags = gdpicturePDF.GetAnnotationFlags(j);
status = gdpicturePDF.GetStat();
if (status == GdPictureStatus.OK)
{
PdfAnnotationFlag res = flags & PdfAnnotationFlag.PdfAnnotationFlagHidden;
message = message + "\n hidden: " + (res != 0).ToString();
res = flags & PdfAnnotationFlag.PdfAnnotationFlagLocked;
message = message + " locked: " + (res != 0).ToString();
res = flags & PdfAnnotationFlag.PdfAnnotationFlagPrint;
message = message + " print: " + (res != 0).ToString();
//You can check out other flags in the same way.
}
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