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FormattedText.SetFontStyle Method (FontStyle, Int32, Int32)

 

Sets the font style for a specified subset of characters in the FormattedText object.

Namespace:   System.Windows.Media
Assembly:  PresentationCore (in PresentationCore.dll)

public void SetFontStyle(
	FontStyle style,
	int startIndex,
	int count
)

Parameters

style
Type: System.Windows.FontStyle

The FontStyle value to use for text formatting.

startIndex
Type: System.Int32

The start index of the initial character to apply the font style to.

count
Type: System.Int32

The number of characters to apply the font style to.

FontStyle supports type conversion behavior such that static values of the FontStyles class can be used to initialize FontStyle and fill parameters that are type FontStyle.

To set the font style for the entire text string, use the SetFontStyle(FontStyle) method.

The following example creates a FormattedText object and then applies several formatting styles to the text, including SetFontStyle.

protected override void OnRender(DrawingContext drawingContext)
{
    string testString = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor";

    // Create the initial formatted text string.
    FormattedText formattedText = new FormattedText(
        testString,
        CultureInfo.GetCultureInfo("en-us"),
        FlowDirection.LeftToRight,
        new Typeface("Verdana"),
        32,
        Brushes.Black);

    // Set a maximum width and height. If the text overflows these values, an ellipsis "..." appears.
    formattedText.MaxTextWidth = 300;
    formattedText.MaxTextHeight = 240;

    // Use a larger font size beginning at the first (zero-based) character and continuing for 5 characters.
    // The font size is calculated in terms of points -- not as device-independent pixels.
    formattedText.SetFontSize(36 * (96.0 / 72.0), 0, 5);

    // Use a Bold font weight beginning at the 6th character and continuing for 11 characters.
    formattedText.SetFontWeight(FontWeights.Bold, 6, 11);

    // Use a linear gradient brush beginning at the 6th character and continuing for 11 characters.
    formattedText.SetForegroundBrush(
                            new LinearGradientBrush(
                            Colors.Orange,
                            Colors.Teal,
                            90.0),
                            6, 11);

    // Use an Italic font style beginning at the 28th character and continuing for 28 characters.
    formattedText.SetFontStyle(FontStyles.Italic, 28, 28);

    // Draw the formatted text string to the DrawingContext of the control.
    drawingContext.DrawText(formattedText, new Point(10, 0));
}

.NET Framework
Available since 3.0
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