• wxArrayString
• function OnFile( wxDirTraverser this, wxString fname) [= default callback]
• function OnDir( wxDirTraverser this, wxString dirname) [= default callback]

The first parameter is required, and is a wxArrayString. The list of files will be put into this array. OnFile and OnDir are optional, and are cdecl callbacks used by the traverser:

• OnFile: This function is called for each file. It may return wxDIR_STOP to abort traversing (for example, if the file being searched is found) or wxDIR_CONTINUE to proceed.
• OnDir: This function is called for each directory. It may return wxDIR_STOP to abort traversing completely, wxDIR_IGNORE to skip this directory but continue with others or wxDIR_CONTINUE to enumerate all files and subdirectories in this directory.

The defaults are files that always return wxDIR_CONTINUE. OnFile adds each file name to the wxArrayString.