void EditBookEvent P((void));
Boolean DisplayBook P((int moveNr));
void SaveToBook P((char *text));
+void HoverEvent P((int hiX, int hiY, int x, int y));
int PackGame P((Board board));
-Boolean ParseFEN P((Board board, int *blackPlaysFirst, char *fen));
+Boolean ParseFEN P((Board board, int *blackPlaysFirst, char *fen, Boolean autoSize));
void ApplyMove P((int fromX, int fromY, int toX, int toY, int promoChar, Board board));
void PackMove P((int fromX, int fromY, int toX, int toY, ChessSquare promoPiece));
void ics_printf P((char *format, ...));
extern char *recentEngines;
extern char *comboLine;
extern Boolean partnerUp, twoBoards;
+extern char engineVariant[];
+char *EngineDefinedVariant P((ChessProgramState *cps, int n));
void SettingsPopUp P((ChessProgramState *cps)); // [HGM] really in front-end, but CPS not known in frontend.h
int WaitForEngine P((ChessProgramState *cps, DelayedEventCallback x));
void Load P((ChessProgramState *cps, int n));