Cannot zoom in/out with a touchpad?

[JeanCollas]

I am using VS 2019. I was looking for a tool to show how my projects were linked together, this extension looked great.

It took me a while, but after many intents I finally got something on the graphs, by clicking
=> Extensions > Code graph > Show all projects in graph.

However the solution is big and the graph is zoomed out, I cannot see anything. I don't have a mouse, only touchpad, and couldn't find how to scroll in/out with the touchpad, neither how to translate the graph.

How can we get something useful from this? Am I missing some key, or combinations to make it work better?

Ok, right click to move the map, but how to zoom?
Ok, need to zoom as on a smartphone, however on big solutions it is very slow. And the result of the analysis is not complete, some project dependencies are missing...

[league1991]

I didn't implement zoom in/out for touch pad, but for visual studio 2010, i added a button to do that. Maybe that's what you need.

You are right, the result is not completed because of the limited capability of doxygen. I am trying to get rid of it and just rely on visual studio to get all information(but more UI interaction is needed). Hopefully I can get it done.