void UpdateVScrollBar();
void save_label_comment_edited();
void refresh_label_comment( void );
void clear_label_comment();
void autorize_prevnext_buttons(int Yes);
void ShowMessageBox(const char * title, const char * text, const char * button);
void ShowConfirmationBoxWithChoiceOrNot(const char * title, const char * text, void * function_if_yes, char HaveTheChoice);
void ShowConfirmationBox(const char * title, const char * text, void * function_if_yes);
void RefreshOneBoolVar( int Type, int Num, int Val );
void RefreshAllBoolsVars( );
void UpdateAllLabelsBoolsVars( );
void DoQuitGtkApplication( void );
void MessageInStatusBar( char * msg );
void InitGtkWindows( int argc, char *argv[] );
void UpdateAllGtkWindows( void );