extern Widget shells[];
extern Boolean shellUp[];
+extern int dialogError;
extern Widget formWidget, shellWidget, boardWidget, menuBarWidget, gameListShell, historyShell;
extern Display *xDisplay;
extern Window xBoardWindow;
extern char ICSInputTranslations[];
extern char *selected_fen_position;
extern GC coordGC;
+extern Dimension textHeight; // of message widget in board window
#define TOPLEVEL 1 /* preference item; 1 = make popup windows toplevel */