UndoCommand      2794 magick/display.c   (void) XMagickCommand(display,resource_info,windows,UndoCommand,image);
UndoCommand      3523 magick/display.c             (void) XMagickCommand(display,resource_info,windows,UndoCommand,
UndoCommand      5759 magick/display.c               (void) XMagickCommand(display,resource_info,windows,UndoCommand,
UndoCommand      6409 magick/display.c     case UndoCommand:
UndoCommand      6770 magick/display.c       return(UndoCommand);
UndoCommand      9819 magick/display.c             (void) XMagickCommand(display,resource_info,windows,UndoCommand,
UndoCommand      11076 magick/display.c       UndoCommand,
UndoCommand      11499 magick/display.c             case UndoCommand:
UndoCommand      14147 magick/display.c       UndoCommand,
UndoCommand      14256 magick/display.c       UndoCommand,