Defines a top-level container for all the elements necessary to describe a C++ API union.
The <cxxUnion> topic type contains elements necessary to show the name of the union, the short description of the union, the union syntax, and the union use description. This topic type module also contains all the elements necessary to describe the component variables and functions.
To describe the component fields and methods insert cxxFunction, cxxDefine, cxxVariable, cxxEnumeration or cxxTypedef elements into the cxxUnion module.
The cxxUnion topic contains the following elements: