Can be used to uniquely identify the object represented by this element for external binding reference purposes.
The value of the refID shall be unique for each object within the AVFunction and is implementation-specific. May be a GUID.
Source
<xsi:complexType name="wo0_1_1ControlType"><xsi:annotation><xsi:documentation>Describes a write-only Integer Control with restricted range.</xsi:documentation><xsi:documentation>The min value is always 0; the max value is always 1; and the resolution is always 1.</xsi:documentation></xsi:annotation><xsi:sequence><xsi:element name="ranges"><xsi:complexType><xsi:sequence><xsi:element name="range"><xsi:complexType><xsi:sequence><xsi:element name="min" type="xsi:nonNegativeInteger" fixed="0"/><xsi:element name="max"><xsi:simpleType><xsi:restriction base="xsi:nonNegativeInteger"><xsi:maxInclusive value="1"/></xsi:restriction></xsi:simpleType></xsi:element><xsi:element name="res" type="xsi:nonNegativeInteger" fixed="1"/></xsi:sequence></xsi:complexType></xsi:element></xsi:sequence></xsi:complexType></xsi:element></xsi:sequence><xsi:attributeGroup ref="refID"/></xsi:complexType>