- The @a url may also be a local file path (with or without the "file://"
- prefix), if it doesn't correspond to an existing file and the URL has no
- scheme "http://" is prepended to it by default.
+ The parameter @a url is interpreted as follows:
+ - if it has a valid scheme (e.g. @c "file:", @c "http:" or @c "mailto:")
+ it is passed to the appropriate browser configured in the user system.
+ - if it has no valid scheme (e.g. it's a local file path without the @c "file:"
+ prefix), then ::wxFileExists and ::wxDirExists are used to test if it's a
+ local file/directory; if it is, then the browser is called with the
+ @a url parameter eventually prefixed by @c "file:".
+ - if it has no valid scheme and it's not a local file/directory, then @c "http:"
+ is prepended and the browser is called.