Adding line to a shape in XAML - wpf

Question

I am modifying the button visual appearance in my XAML code with a hexagon. Now, I want to add 2 lines to the two outer edges of the hexagon like the image below:
https://skydrive.live.com/redir.aspx?cid=204df65b0e6e1655&resid=204DF65B0E6E1655!117&parid=204DF65B0E6E1655!107&authkey=!AEzKZRmwMNhBWxM
Can anyone tell how and where to add it ? My code is something like this
<Page.Resources>
<Style TargetType="Button">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Canvas>
<Polygon Canvas.Top="30" Points=
"430,0
400,32
-30,32
-60,0
-30,-32
400,-32"
Stroke="Brown" StrokeThickness="10"/>
<ContentPresenter Canvas.Left="80" Foreground="White" FontSize="40"></ContentPresenter>
</Canvas>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Page.Resources>
<Grid Background="Black">
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Button Grid.Row="1" Margin="40,-100 0,-50" HorizontalAlignment="Center">Hello World</Button>
</Grid>
I cant get the line to connect to those edges and spread all the way to the page end.
Any idea ?

Answer 1

Do you want this within your button style? I was able to achieve this through the XAML button control template code below.
I put separators in a grid and then put rectangles on top them to add stroke to the image.
I also added an upper margin of 2 onto the polygon to align with the rectangles.
<ControlTemplate TargetType="Button">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition Width="500"/>
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Rectangle Fill="White" Grid.Column="0"/>
<Rectangle Fill="White" Grid.Column="2"/>
<Separator Background="White" Grid.Column="0"/>
<Separator Background="White" Grid.Column="2"/>
<Canvas Grid.Column="1" Margin="64,2,0,0">
<Polygon Points=
"430,0
400,32
-30,32
-60,0
-30,-32
400,-32"
Stroke="Brown" StrokeThickness="10"/>
<ContentPresenter Canvas.Left="80" Foreground="White" FontSize="40"/>
</Canvas>
</Grid>
</ControlTemplate>