VisualBrush.Visual
<Page
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="Microsoft.Samples.Graphics.UsingVisualBrush.PaintingWithVisuals">
<StackPanel>
<Rectangle Width="150" Height="150" Stroke="Black" Margin="5,0,5,0">
<Rectangle.Fill>
<VisualBrush>
<VisualBrush.Visual>
<StackPanel Background="Transparent">
<TextBlock FontSize="10pt" Margin="10">Hello, World!</TextBlock>
</StackPanel>
</VisualBrush.Visual>
</VisualBrush>
</Rectangle.Fill>
</Rectangle>
</StackPanel>
</Page>
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