SetTextScaling Method (GdPicturePDF)
In This Topic
Sets the horizontal scaling to be used when drawing text onto the currently loaded PDF document. This value adjusts the width of glyphs by stretching or compressing them in the horizontal direction. It is specified as a percentage of the normal width of the glyphs. The initial value is set to 100 (the normal width).
The horizontal scaling parameter is one of the text state parameters, that only affect text. The text state parameters are initialized to their default values at the beginning of each page (see PDF Reference, Section "Text State Parameters and Operators").
Syntax
Parameters
- Scaling
- A new value for the horizontal scaling, as a percentage of the normal width. Initial value is 100.
This value is defined for use with any font you choose.
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.
Example
How to reset the horizontal scaling in the PDF document in order to be able to draw text using this parameter.
Dim caption As String = "Example: SetTextScaling"
Dim gdpicturePDF As New GdPicturePDF()
Dim status As GdPictureStatus = gdpicturePDF.NewPDF()
If status = GdPictureStatus.OK Then
If gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) = GdPictureStatus.OK Then
Dim fontName As String = gdpicturePDF.AddStandardFont(PdfStandardFont.PdfStandardFontHelvetica)
If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
If (gdpicturePDF.SetTextSize(30) = GdPictureStatus.OK) AndAlso
(gdpicturePDF.DrawText(fontName, 100, 700, "Hello world!") = GdPictureStatus.OK) AndAlso
(gdpicturePDF.SetTextScaling(50) = GdPictureStatus.OK) AndAlso
(gdpicturePDF.DrawText(fontName, 100, 600, "Hello world!") = GdPictureStatus.OK) AndAlso
(gdpicturePDF.SetTextScaling(150) = GdPictureStatus.OK) AndAlso
(gdpicturePDF.DrawText(fontName, 100, 500, "Hello world!") = GdPictureStatus.OK) AndAlso
(gdpicturePDF.SetTextScaling(100) = GdPictureStatus.OK) Then 'Resetting to the initial value.
status = gdpicturePDF.SaveToFile("test_SetTextScaling.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 NewPage() 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: SetTextScaling";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
GdPictureStatus status = gdpicturePDF.NewPDF();
if (status == GdPictureStatus.OK)
{
if (gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) == GdPictureStatus.OK)
{
string fontName = gdpicturePDF.AddStandardFont(PdfStandardFont.PdfStandardFontHelvetica);
if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
{
if ((gdpicturePDF.SetTextSize(30) == GdPictureStatus.OK) &&
(gdpicturePDF.DrawText(fontName, 100, 700, "Hello world!") == GdPictureStatus.OK) &&
(gdpicturePDF.SetTextScaling(50) == GdPictureStatus.OK) &&
(gdpicturePDF.DrawText(fontName, 100, 600, "Hello world!") == GdPictureStatus.OK) &&
(gdpicturePDF.SetTextScaling(150) == GdPictureStatus.OK) &&
(gdpicturePDF.DrawText(fontName, 100, 500, "Hello world!") == GdPictureStatus.OK) &&
(gdpicturePDF.SetTextScaling(100) == GdPictureStatus.OK)) //Resetting to the initial value.
{
status = gdpicturePDF.SaveToFile("test_SetTextScaling.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 NewPage() 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();
Example
How to reset the horizontal scaling in the PDF document in order to be able to draw text using this parameter.
Dim caption As String = "Example: SetTextScaling"
Dim gdpicturePDF As New GdPicturePDF()
Dim status As GdPictureStatus = gdpicturePDF.NewPDF()
If status = GdPictureStatus.OK Then
If gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) = GdPictureStatus.OK Then
Dim fontName As String = gdpicturePDF.AddStandardFont(PdfStandardFont.PdfStandardFontHelvetica)
If gdpicturePDF.GetStat() = GdPictureStatus.OK Then
If (gdpicturePDF.SetTextSize(30) = GdPictureStatus.OK) AndAlso
(gdpicturePDF.DrawText(fontName, 100, 700, "Hello world!") = GdPictureStatus.OK) AndAlso
(gdpicturePDF.SetTextScaling(50) = GdPictureStatus.OK) AndAlso
(gdpicturePDF.DrawText(fontName, 100, 600, "Hello world!") = GdPictureStatus.OK) AndAlso
(gdpicturePDF.SetTextScaling(150) = GdPictureStatus.OK) AndAlso
(gdpicturePDF.DrawText(fontName, 100, 500, "Hello world!") = GdPictureStatus.OK) AndAlso
(gdpicturePDF.SetTextScaling(100) = GdPictureStatus.OK) Then 'Resetting to the initial value.
status = gdpicturePDF.SaveToFile("test_SetTextScaling.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 NewPage() 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: SetTextScaling";
GdPicturePDF gdpicturePDF = new GdPicturePDF();
GdPictureStatus status = gdpicturePDF.NewPDF();
if (status == GdPictureStatus.OK)
{
if (gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4) == GdPictureStatus.OK)
{
string fontName = gdpicturePDF.AddStandardFont(PdfStandardFont.PdfStandardFontHelvetica);
if (gdpicturePDF.GetStat() == GdPictureStatus.OK)
{
if ((gdpicturePDF.SetTextSize(30) == GdPictureStatus.OK) &&
(gdpicturePDF.DrawText(fontName, 100, 700, "Hello world!") == GdPictureStatus.OK) &&
(gdpicturePDF.SetTextScaling(50) == GdPictureStatus.OK) &&
(gdpicturePDF.DrawText(fontName, 100, 600, "Hello world!") == GdPictureStatus.OK) &&
(gdpicturePDF.SetTextScaling(150) == GdPictureStatus.OK) &&
(gdpicturePDF.DrawText(fontName, 100, 500, "Hello world!") == GdPictureStatus.OK) &&
(gdpicturePDF.SetTextScaling(100) == GdPictureStatus.OK)) //Resetting to the initial value.
{
status = gdpicturePDF.SaveToFile("test_SetTextScaling.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 NewPage() 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();
See Also