Comparing files old.txt and NEW.TXT
***** old.txt
%if(win) %alias SetBackgroundColor void SetBackgroundColour(const wxColour& colour) const
%if(win) void SetBitmaps(const wxBitmap& checked, const wxBitmap& unchecked = wxNullBitmap) const
***** NEW.TXT
%if(win) %alias SetBackgroundColor void SetBackgroundColour(const wxColour& colour) const
void SetBitmap(const wxBitmap& bitmap) const
%if(win) void SetBitmaps(const wxBitmap& checked, const wxBitmap& unchecked = wxNullBitmap) const
*****

***** old.txt

///////////////////////////////////////////////////////////////////////////////
***** NEW.TXT

/////////////////////////////////////////////////////////////////////////////// 
*****

