WPF 程序中文字描邊問題

Dll調用：

　　

xmlns:loc="clr-namespace:CustomeControlLib;assembly=CustomeControlLib"

控件相關屬性的設置：

<StackPanel Orientation="Vertical">
            <loc:BorderTextBlock Height="30" Width="150" BorderText="測試數據" FontSize="25" FontFamily="華文行楷"
                                 BorderBrush="Green" Foreground="Red" TextAlignment="Center" Background="Transparent"/>
            <loc:BorderTextBlock Height="30" Width="150" BorderText="測試數據" FontSize="25" FontFamily="隸書"
                                 BorderBrush="Pink" Foreground="Blue" TextAlignment="Center" Background="Transparent"/>
            <loc:BorderTextBlock Height="30" Width="150" BorderText="測試數據" FontSize="25" FontFamily="楷體"
                                 BorderBrush="Black" Foreground="Yellow" TextAlignment="Center" Background="Transparent"/>
        </StackPanel>

　　注：BorderText爲顯示的文本、BorderBrush爲邊框的顏色、Foreground爲文本顏色。

效果：　

Dll下載路徑：http://files.cnblogs.com/wrl-wuqingxue/CustomeControlLib.rar