all of previous flags except wxPATH_NORM_CASE
@param cwd
If not empty, this directory will be used instead of current
working directory in normalization (see wxPATH_NORM_ABSOLUTE).
@param format
The file name format to use when processing the paths, native by default.
all of previous flags except wxPATH_NORM_CASE
@param cwd
If not empty, this directory will be used instead of current
working directory in normalization (see wxPATH_NORM_ABSOLUTE).
@param format
The file name format to use when processing the paths, native by default.