FormattedText.SetForegroundBrush Metodo

Definizione

Spazio dei nomi:

System.Windows.Media

Assembly:

PresentationCore.dll

Modifica il pennello in primo piano utilizzato per disegnare il testo.

Overload

SetForegroundBrush(Brush, Int32, Int32)	Modifica l'oggetto Brush in primo piano per il testo specificato all'interno di un oggetto FormattedText.
SetForegroundBrush(Brush)	Modifica l'oggetto Brush in primo piano per un intero oggetto FormattedText.

SetForegroundBrush(Brush, Int32, Int32)

Modifica l'oggetto Brush in primo piano per il testo specificato all'interno di un oggetto FormattedText.

public:
 void SetForegroundBrush(System::Windows::Media::Brush ^ foregroundBrush, int startIndex, int count);

public void SetForegroundBrush (System.Windows.Media.Brush foregroundBrush, int startIndex, int count);

member this.SetForegroundBrush : System.Windows.Media.Brush * int * int -> unit

Public Sub SetForegroundBrush (foregroundBrush As Brush, startIndex As Integer, count As Integer)

Parametri

foregroundBrush

Brush

Pennello da utilizzare in primo piano per il testo.

startIndex

Int32

Indice di inizio del carattere iniziale al quale applicare il pennello in primo piano.

count

Int32

Numero di caratteri ai quali applicare il pennello in primo piano.

Esempio

Nell'esempio seguente viene creato un FormattedText oggetto e quindi vengono applicati diversi stili di formattazione al testo, incluso SetForegroundBrush.

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));
}

Protected Overrides Sub OnRender(ByVal drawingContext As DrawingContext)
    Dim testString As String = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor"

    ' Create the initial formatted text string.
    Dim formattedText As 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))
End Sub

Commenti

Per impostare il pennello in primo piano per l'intera stringa di testo, utilizzare il SetForegroundBrush metodo .

SetForegroundBrush(Brush)

Modifica l'oggetto Brush in primo piano per un intero oggetto FormattedText.

public:
 void SetForegroundBrush(System::Windows::Media::Brush ^ foregroundBrush);

public void SetForegroundBrush (System.Windows.Media.Brush foregroundBrush);

member this.SetForegroundBrush : System.Windows.Media.Brush -> unit

Public Sub SetForegroundBrush (foregroundBrush As Brush)

Parametri

foregroundBrush

Brush

Pennello da utilizzare in primo piano per il testo.

Commenti

Questo metodo imposta il pennello in primo piano per l'intera stringa di testo. Per impostare il pennello in primo piano per un subset della stringa di testo, utilizzare il SetForegroundBrush(Brush, Int32, Int32) metodo .