-extern NCURSES_EXPORT(TypeArgument *) _nc_Make_Argument (const FIELDTYPE*, va_list*, int*);
-extern NCURSES_EXPORT(TypeArgument *) _nc_Copy_Argument (const FIELDTYPE*, const TypeArgument*, int*);
-extern NCURSES_EXPORT(void) _nc_Free_Argument (const FIELDTYPE*, TypeArgument*);
-extern NCURSES_EXPORT(bool) _nc_Copy_Type (FIELD*, FIELD const *);
-extern NCURSES_EXPORT(void) _nc_Free_Type (FIELD *);
-
-extern NCURSES_EXPORT(int) _nc_Synchronize_Attributes (FIELD*);
-extern NCURSES_EXPORT(int) _nc_Synchronize_Options (FIELD*, Field_Options);
-extern NCURSES_EXPORT(int) _nc_Set_Form_Page (FORM*, int, FIELD*);
-extern NCURSES_EXPORT(int) _nc_Refresh_Current_Field (FORM*);
-extern NCURSES_EXPORT(FIELD *) _nc_First_Active_Field (FORM*);
-extern NCURSES_EXPORT(bool) _nc_Internal_Validation (FORM*);
-extern NCURSES_EXPORT(int) _nc_Set_Current_Field (FORM*, FIELD*);
-extern NCURSES_EXPORT(int) _nc_Position_Form_Cursor (FORM*);
+extern FORM_EXPORT(TypeArgument *) _nc_Make_Argument (const FIELDTYPE*, va_list*, int*);
+extern FORM_EXPORT(TypeArgument *) _nc_Copy_Argument (const FIELDTYPE*, const TypeArgument*, int*);
+extern FORM_EXPORT(void) _nc_Free_Argument (const FIELDTYPE*, TypeArgument*);
+extern FORM_EXPORT(bool) _nc_Copy_Type (FIELD*, FIELD const *);
+extern FORM_EXPORT(void) _nc_Free_Type (FIELD *);
+
+extern FORM_EXPORT(int) _nc_Synchronize_Attributes (FIELD*);
+extern FORM_EXPORT(int) _nc_Synchronize_Options (FIELD*, Field_Options);
+extern FORM_EXPORT(int) _nc_Set_Form_Page (FORM*, int, FIELD*);
+extern FORM_EXPORT(int) _nc_Refresh_Current_Field (FORM*);
+extern FORM_EXPORT(FIELD *) _nc_First_Active_Field (FORM*);
+extern FORM_EXPORT(bool) _nc_Internal_Validation (FORM*);
+extern FORM_EXPORT(int) _nc_Set_Current_Field (FORM*, FIELD*);
+extern FORM_EXPORT(int) _nc_Position_Form_Cursor (FORM*);
+extern FORM_EXPORT(void) _nc_Unset_Current_Field(FORM *form);