<xs:element name="GeneralSettings">
        <xs:complexType>
            <xs:all>
                <xs:element type="BrakeType:BrakeType" name="Brake" default="Undefined" minOccurs="0"/>
                <xs:element type="Steering:Steering" name="Steering" minOccurs="0"/>

                <xs:element type="xs:double" name="Width" default="1024.0" minOccurs="0"/>
                <xs:element type="xs:double" name="Height" default="768.0" minOccurs="0"/>
            </xs:all>
        </xs:complexType>

<xs:complexType name="Steering">
        <xs:all>
            <xs:element type="xs:double" name="CalibratedLeft" default="-50.0" minOccurs="0"/>
            <xs:element type="xs:double" name="CalibratedRight" default="50.0" minOccurs="0"/>
            <xs:element type="xs:double" name="CalibratedMiddle" default="0.0" minOccurs="0"/>
            <xs:element type="xs:boolean" name="IsCalibrated" default="false" minOccurs="0"/>
        </xs:all>
    </xs:complexType>

public partial class GeneralSettings
    {
        [System.Runtime.Serialization.DataMemberAttribute()]
        private BrakeType brakeField;
        [System.Runtime.Serialization.DataMemberAttribute()]
        private Steering steeringField;
        [System.Runtime.Serialization.DataMemberAttribute()]
        private double widthField;
        [System.Runtime.Serialization.DataMemberAttribute()]
        private double heightField;
        public GeneralSettings()
        {
            this.brakeField = BrakeType.Undefined;
            this.widthField = 1024;
            this.heightField = 768;
        }
}