gtk::events_pending
int gtk::events_pending(void);
gtk::events_pending() is useful when there is
a function that needs to be carried out during a long-running process,
for example, updating a status bar during an SQL query.
The way it would be used in such a situation is to have
after every update that is made to the GUI. This causes the main loop
to run once each time events are anticipated.
See also: gtk::main_iteration() ,
gtk::main_iteration_do() ,
gtk::timeout_add() .
