This year at school, we have a C language project to do in team, and the subject was totally free. So we had the idea to make an application that tracks Solex in real time for the Rock’n Solex fest, in order to allow people to see the position, lap-times and speed of the runners at any instant.

As we are obligated to do it in C language, we chose to use GTK+ library for our client interface, that will show a map with one marker for each runner. After some research on the web, we found osm-gps-map, a sort of widget for GTK+ that allows fetching maps from OpenStreetMap project.

The purpose of this post is to explain how to properly install and use GTK+ under Windows, and how to make the C example file provided by the official website working. The IDE that will be used is Code::Blocks.

The explaination below might be very complex for beginners. You have to follow rigorously the steps I give. Normally, this example respect the universality of paths for the project, that allows export easly your sources on a SVN to work in team for example.


  • Code::Blocks 12.11 IDE installed on the computer.
  • GTK+ 3.6.1 for Windows
  • osm-gps-map sources
  • libsoup-2.26 library
  • a LOT of patience


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