title: How to highlight specific country on world map image
body: <p>I have a real-time flow of IPs' data.<br>
  I would like to display geodata, corresponding to received IPs, on world map image using QT &amp; C++.<br>
  What would you recommend in that case?</p>
  
  <p>PNG or SVG?<br>
  Are there any images out better than Wikipedia's blank maps?<br>
  What geodata database would you recommend?</p>
  
  <p>Thank you!</p>