<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="WindowsApplication1.Window1">
  <StackPanel Orientation="Horizontal">

    <ProgressBar Style="{StaticResource pieStyle}"
      Width="100" Height="100" Value="75"/>

  </StackPanel>
</Window>