/// <summary>
/// Function to define a new button for the device.
/// </summary>
/// <param name="name">Name of the button to define.</param>
/// <exception cref="System.ArgumentNullException">Thrown when the <paramref name="name"/> parameter is NULL (Nothing in VB.Net).</exception>
/// <exception cref="System.ArgumentException">Thrown when the name parameter is empty.
/// <para>-or-</para>
/// <para>Thrown when the name already exists in the list.</para>
/// </exception>
protected void DefineButton(string name)
{
GorgonDebug.AssertParamString(name, "name");
AddItem(new JoystickButtonState(name, false));
}
