Example





In This Topic
GdPicture14 Namespace / GdPicturePDF Class / GetFontCount Method

GetFontCount Method (GdPicturePDF)

In This Topic
Returns the number of fonts used in the currently loaded PDF document.

A font for use with a PDF consumer application is prepared in the form of a program. Such a font program is written in a special-purpose language, that is understood by a specialized font interpreter.

Syntax
'Declaration
 

Public Function GetFontCount() As Integer
public int GetFontCount()
public function GetFontCount(): Integer; 
public function GetFontCount() : int;
public: int GetFontCount(); 
public:
int GetFontCount();

Return Value

The number of fonts used in the document. 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.

Example
How to find out the number of all fonts and their properties used in the PDF document. 
Dim gdpicturePDF As New GdPicturePDF()
Dim status As GdPictureStatus = gdpicturePDF.LoadFromFile("test.pdf", False)
If status = GdPictureStatus.OK Then
    Dim fontCount As Integer = gdpicturePDF.GetFontCount()
    status = gdpicturePDF.GetStat()
    If status = GdPictureStatus.OK Then
        Dim output As String = "The number of fonts used in this document is " + fontCount.ToString() + "." + vbCrLf + vbCrLf
        For i As Integer = 1 To fontCount
            output = output + i.ToString() + ". Font: "
            Dim fontName As String = "", fontType As String = "", fontEncoding As String = ""
            
            'Finding out the name of the used font.
            fontName = gdpicturePDF.GetFontName(i)
            status = gdpicturePDF.GetStat()
            If status = GdPictureStatus.OK Then
                output = output + "  Name = " + fontName
            Else
                output = output + "  Name = Error (" + status.ToString() + ")"
            End If
            
            'Finding out the type of the used font.
            fontType = gdpicturePDF.GetFontType(i)
            status = gdpicturePDF.GetStat()
            If status = GdPictureStatus.OK Then
                output = output + ";  Type = " + fontType
            Else
                output = output + ";  Type = Error (" + status.ToString() + ")"
            End If
            
            'Finding out the font encoding of the used font.
            fontEncoding = gdpicturePDF.GetFontEncoding(i)
            status = gdpicturePDF.GetStat()
            If status = GdPictureStatus.OK Then
                output = output + ";  Encoding = " + fontEncoding
            Else
                output = output + ";  Encoding = Error (" + status.ToString() + ")"
            End If
            
            'Finding out if the used font is embedded.
            Dim fontEmbedded As Boolean = gdpicturePDF.IsFontEmbedded(i)
            status = gdpicturePDF.GetStat()
            If status = GdPictureStatus.OK Then
                output = output + ";  Embedded = " + fontEmbedded.ToString() + vbCrLf
            Else
                output = output + ";  Embedded = Error (" + status.ToString() + ")" + vbCrLf
            End If
        Next
        MessageBox.Show(output, "Example: GetFontCount")
    Else
        MessageBox.Show("The GetFontCount() method has failed with the status: " + status.ToString(), "Example: GetFontCount")
    End If
Else
    MessageBox.Show("The file can't be loaded.", "Example: GetFontCount")
End If
gdpicturePDF.Dispose()
GdPicturePDF gdpicturePDF = new GdPicturePDF();
GdPictureStatus status = gdpicturePDF.LoadFromFile("test.pdf", false);
if (status == GdPictureStatus.OK)
{
    int fontCount = gdpicturePDF.GetFontCount();
    status = gdpicturePDF.GetStat();
    if (status == GdPictureStatus.OK)
    {
        string output = "The number of fonts used in this document is " + fontCount.ToString() + ".\n\n";
        for (int i = 1; i <= fontCount; i++)
        {
            output = output + i.ToString() + ". Font: ";
            string fontName = "", fontType = "", fontEncoding = "";
            
             //Finding out the name of the used font.
            fontName = gdpicturePDF.GetFontName(i);
            status = gdpicturePDF.GetStat();
            if (status == GdPictureStatus.OK)
                output = output + "  Name = " + fontName;
            else
                output = output + "  Name = Error (" + status.ToString() + ")";
            
            //Finding out the type of the used font.
            fontType = gdpicturePDF.GetFontType(i);
            status = gdpicturePDF.GetStat();
            if (status == GdPictureStatus.OK)
                output = output + ";  Type = " + fontType;
            else
                output = output + ";  Type = Error (" + status.ToString() + ")";
            
            //Finding out the font encoding of the used font.
            fontEncoding = gdpicturePDF.GetFontEncoding(i);
            status = gdpicturePDF.GetStat();
            if (status == GdPictureStatus.OK)
                output = output + ";  Encoding = " + fontEncoding;
            else
                output = output + ";  Encoding = Error (" + status.ToString() + ")";
            
            //Finding out if the used font is embedded.
            bool fontEmbedded = gdpicturePDF.IsFontEmbedded(i);
            status = gdpicturePDF.GetStat();
            if (status == GdPictureStatus.OK)
                output = output + ";  Embedded = " + fontEmbedded.ToString() + "\n";
            else
                output = output + ";  Embedded = Error (" + status.ToString() + ")\n";
        }
        MessageBox.Show(output, "Example: GetFontCount");
    }
    else
    {
        MessageBox.Show("The GetFontCount() method has failed with the status: " + status.ToString(), "Example: GetFontCount");
    }
}
else
{
    MessageBox.Show("The file can't be loaded.", "Example: GetFontCount");
}
gdpicturePDF.Dispose();
See Also

Reference

GdPicturePDF Class
GdPicturePDF Members
GetFontName Method
GetFontType Method
GetFontEncoding Method
IsFontEmbedded Method