The <cxxfile> element is a reference to a C++ file.
The <cxxfile> element can be used to reference a C++ file from another topic type.
<task id="connectionsxml"> <title>Connections</title> <taskbody> <steps> <step><cm>Open the connection</cm> <info>Details for the connection class are in the <cxxfile keyref="connectionfile">connection file</cxxfile> </info> </step> ... </steps> </taskbody> </task>