not get Header file , how to use this library ?

[swiftHao1108]

i have success use cmake create these three files , qmdnsengine.dll,qmdnsengine.exp,qmdnsengine.lib , but i dont get qmdnsengine.h .
so when i use code below , errors occour , it said QMdnsEngine is not a class or namespace name .

code below :
QMdnsEngine::Server server;
QMdnsEngine::Cache cache;
QMdnsEngine::Browser browser(&server, "_http._tcp.local.", &cache);