These functions allow one to register and remove a function that is called periodically at a fixed interval.
gtkAddTimeout(interval, f, data=NULL)
gtkRemoveTimeout(id)data is given.
The function should return a logical value.
If it returns FALSE, the timer is removed.
If it returns TRUE, the timer is re-registered and will be called
after interval milliseconds.
f when it is invoked. This can be used to
parameterize the function to have different functions.
The same effect can be obtained using closures.
gtkAddTimeout.gtkAddTimeout returns an object
of class "GtkTimeoutId".
This is an integer giving the identifier
returned by the low-level Gtk interface.
gtkAddIdle
gtkRemoveIdle
gtkAddCallback