... and similar wx "variadics," which all treat wxString smartly enough that
you don't need this.
Don't need c_str either to convert wxString to const wxChar * because
wxString has a conversion operator that does the same.
One example is if a user tries to export a file to an invalid file or
is not permitted to write to it. For the FFmpeg, MP2, and OGG exporters
this error would not be flagged and to the user, it would look like the
file was exported.
These now throw up an error dialog to left the user know.
We can't go to 3.0.1 yet as there are still build issues on
Linux and OSX. You can get Windows to build, but there's
still some display issues.
These changes should work with wxWidgets 2.8.12 as well, so
we can take our time to get things working properly before
switching over.
