DrawRotatedText Method (GdPicturePDF)

In This Topic

Draws required text, rotated by the defined angle counterclockwise, using the specified font on the currently selected page of the loaded PDF document. You also need to set the destination point, expressed in the current units defined in the PDF document, related to the actual page, where the text is to be drawn.

You can simply use the GetMeasurementUnit method to determine the currently defined units and you can easily use the SetMeasurementUnit method to reset the units according to your preference.

Syntax

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

'Declaration
 
Public Function DrawRotatedText( _
   ByVal FontResName As String, _
   ByVal DstX As Single, _
   ByVal DstY As Single, _
   ByVal Text As String, _
   ByVal Angle As Single _
) As GdPictureStatus

public GdPictureStatus DrawRotatedText( 
   string FontResName,
   float DstX,
   float DstY,
   string Text,
   float Angle
)

public function DrawRotatedText( 
    FontResName: String;
    DstX: Single;
    DstY: Single;
    Text: String;
    Angle: Single
): GdPictureStatus;

public function DrawRotatedText( 
   FontResName : String,
   DstX : float,
   DstY : float,
   Text : String,
   Angle : float
) : GdPictureStatus;

public: GdPictureStatus DrawRotatedText( 
   string* FontResName,
   float DstX,
   float DstY,
   string* Text,
   float Angle
)

public:
GdPictureStatus DrawRotatedText( 
   String^ FontResName,
   float DstX,
   float DstY,
   String^ Text,
   float Angle
)

Parameters

FontResName: The resource name of the font you prefer for drawing your text.
You can easily obtain this name using the AddStandardFont method or any of the AddTrueTypeFont...() methods. For further assistance, please see the section Fonts of the GdPicturePDF class in the Reference Guide.
DstX: The horizontal (X) coordinate of the destination point, expressed in the current units specified by the SetMeasurementUnit method, related to the currently selected page.
DstY: The vertical (Y) coordinate of the destination point, expressed in the current units specified by the SetMeasurementUnit method, related to the currently selected page.
Text: The required text to draw.
Angle: The rotation angle, in degrees, determining the counterclockwise rotation. This parameter is without any restrictions.

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.

Remarks

This method is only allowed for use with non-encrypted documents.

Example

How to draw rotated text with the specified attributes on the newly created page.

VB.NET
C#

Dim caption As String = "Example: DrawRotatedText"
Dim gdpicturePDF As New GdPicturePDF()
Dim status As GdPictureStatus = gdpicturePDF.NewPDF()
If status = GdPictureStatus.OK Then
    gdpicturePDF.SetOrigin(PdfOrigin.PdfOriginTopLeft)
    gdpicturePDF.SetMeasurementUnit(PdfMeasurementUnit.PdfMeasurementUnitCentimeter)
    Dim fontName As String = gdpicturePDF.AddStandardFont(PdfStandardFont.PdfStandardFontTimesBold)
    If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
        If (gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) = GdPictureStatus.OK) AndAlso
           (gdpicturePDF.SetFillColor(0, 0, 255) = GdPictureStatus.OK) AndAlso
           (gdpicturePDF.SetTextSize(30) = GdPictureStatus.OK) AndAlso
           (gdpicturePDF.DrawRotatedText(fontName, 10, 10, "GdPicture.NET", 0) = GdPictureStatus.OK) AndAlso
           (gdpicturePDF.DrawRotatedText(fontName, 10, 10, "GdPicture.NET", 90) = GdPictureStatus.OK) AndAlso
           (gdpicturePDF.DrawRotatedText(fontName, 10, 10, "GdPicture.NET", 180) = GdPictureStatus.OK) AndAlso
           (gdpicturePDF.DrawRotatedText(fontName, 10, 10, "GdPicture.NET", 270) = GdPictureStatus.OK) Then
            status = gdpicturePDF.SaveToFile("test_DrawRotatedText.pdf")
            If status = GdPictureStatus.OK Then
                MessageBox.Show("The text has been successfully drawn and the file has been saved.", caption)
            Else
                MessageBox.Show("The text has been successfully drawn," + vbCrLf + "but the file can't be saved. Status: " + status.ToString(), caption)
            End If
        Else
            MessageBox.Show("The example has not been followed successfully." + vbCrLf + "The last known status is " + gdpicturePDF.GetStat().ToString(), caption)
        End If
    Else
        MessageBox.Show("The AddStandardFont() method has failed with the status: " + status.ToString(), caption)
    End If
Else
    MessageBox.Show("The NewPDF() method has failed with the status: " + status.ToString(), caption)
End If
gdpicturePDF.Dispose()

string caption = "Example: DrawRotatedText";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
GdPictureStatus status = gdpicturePDF.NewPDF();
if (status == GdPictureStatus.OK)
{
    gdpicturePDF.SetOrigin(PdfOrigin.PdfOriginTopLeft);
    gdpicturePDF.SetMeasurementUnit(PdfMeasurementUnit.PdfMeasurementUnitCentimeter);
    string fontName = gdpicturePDF.AddStandardFont(PdfStandardFont.PdfStandardFontTimesBold);
    if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
    {
        if ((gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) == GdPictureStatus.OK) &&
            (gdpicturePDF.SetFillColor(0, 0, 255) == GdPictureStatus.OK) &&
            (gdpicturePDF.SetTextSize(30) == GdPictureStatus.OK) &&
            (gdpicturePDF.DrawRotatedText(fontName, 10, 10, "GdPicture.NET", 0) == GdPictureStatus.OK) &&
            (gdpicturePDF.DrawRotatedText(fontName, 10, 10, "GdPicture.NET", 90) == GdPictureStatus.OK) &&
            (gdpicturePDF.DrawRotatedText(fontName, 10, 10, "GdPicture.NET", 180) == GdPictureStatus.OK) &&
            (gdpicturePDF.DrawRotatedText(fontName, 10, 10, "GdPicture.NET", 270) == GdPictureStatus.OK))
        {
            status = gdpicturePDF.SaveToFile("test_DrawRotatedText.pdf");
            if (status == GdPictureStatus.OK)
                MessageBox.Show("The text has been successfully drawn and the file has been saved.", caption);
            else
                MessageBox.Show("The text has been successfully drawn,\nbut the file can't be saved. Status: " + status.ToString(), caption);
        }
        else
            MessageBox.Show("The example has not been followed successfully.\nThe last known status is " + gdpicturePDF.GetStat().ToString(), caption);
    }
    else
        MessageBox.Show("The AddStandardFont() method has failed with the status: " + status.ToString(), caption);
}
else
    MessageBox.Show("The NewPDF() method has failed with the status: " + status.ToString(), caption);
gdpicturePDF.Dispose();

Reference

GdPicturePDF Class
GdPicturePDF Members
DrawText Method
AddStandardFont Method
AddTrueTypeFont Method
SetMeasurementUnit Method
SetOrigin Method