I am working on improving/extending the wxwidgets port of German Carrere (wxPlot) and making it a wxwidget.
Freetype support and resizing are working at the moment. However, I have problems using the zooming functionality (plsdiplz and/or plsdiplt) and I am not able to find a good example of how those functions should be used.
If I do something like:
I end up having a blank plot (is a manual redraw necessary??)

Could someone help me with how to use the zooming functionality? Any help will be appreciated !