Upvote:1
It depends...for ex. here in Germany, if you flight to your destiny, there are airports with a "transit-zone" and you, as ghanian with a visum in Canada, can use this transitzones to go from flight to flight, but you cannot leave the transit-zone. Not all airports have this transit-zones.
If you drive by car or take a train then you would need a transit-visa.
I suppose the laws in other EU-countries should not differ a lot from them here in Germany.
You also are making a very generall question, and I recommend you to take a look at the laws in the countries you are going to pass through.