I recently starting playing with Ktorrent. I had been a long time Azureus user, but was just trying to setup something quickly and didn't need to level of functionality of Azureus had. As a Chrome user, I wanted my magnet:????? links to automaticially be added to KTorrent. I tried tried to do it with xdg and gconf, but neither of these worked. I then found some info on Deluge that made my mind figure out this method.
- Open System Settings -> Common Appearance & Behaviour -> File associations
- Click on "Add.." below the "Configure File Associations" list.
- For the group field enter "x-scheme-handler" and the type name field enter "magnet". Then press "OK"
- Then highlight the new file association (Mime Type) you just made and click on "Add..." in the Application Preference Order" dialogue area. Select KTorrent.
That's it. Now you should be able to easily have magnet links to KTorrent.