title: how to implement qt Virtual keyboard in qt desktop application without using Qt Quick
body: <p>I want to work on application that should give me mobile device look but the application will run on linux based device.<br>
  I need access to port which I have checked creating qt application ,now with use of this i want to create UI to be run on linux touch device.
  i have experience on qt of about 7 month i have most of the basic knowldege of qt , but now i want to go in detail and advance.
  so need help and idea what i should install to add mobile device look in qt application without qt quick.
  which version will be best. 
  how i can add virtual keyboard in application.</p>
  
  <p>the idea is to develop a qt application with mobile look and feel along with communication with hardwares.</p>