New Post: InputBindings in Modal Window

<Window.InputBindings>
        <KeyBinding Key="A"
              Modifiers="Control" 
              Command="Close" />
    </Window.InputBindings>

<Style x:Key="WindowRegionStyle" TargetType="Window">
                <Setter Property="Width" Value="{Binding Content.Width, RelativeSource={RelativeSource Self}}" />
                <Setter Property="Height" Value="{Binding Content.Height, RelativeSource={RelativeSource Self}}" />
                <Setter Property="WindowStyle" Value="None"/>
                <Setter Property="ResizeMode" Value="NoResize"/>
                <Setter Property="ShowInTaskbar" Value="False"/>
                <Setter Property="InputBindings"></Setter>
            </Style>