gtkAddTimeout             package:RGtk2             R Documentation

_C_o_n_t_r_o_l _a _p_e_r_i_o_d_i_c/_t_i_m_e_r _f_u_n_c_t_i_o_n

_D_e_s_c_r_i_p_t_i_o_n:

     *DEPRECATED!! (compatibility wrappers for RGtk 1!)* 

     These functions allow one to register and remove a function that
     is called periodically at a fixed interval.

_U_s_a_g_e:

     gtkAddTimeout(interval, f, data=NULL)
     gtkRemoveTimeout(id)

_A_r_g_u_m_e_n_t_s:

interval: the number of milliseconds to wait before invoking the call.

       f: the function should take one or zero arguments depending on
          whether the argument '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. 

    data: a value, which if specified, will be passed to the function
          '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. 

      id: the object identifying the timer function in Gtk that was
          returned by a call to 'gtkAddTimeout'.

_V_a_l_u_e:

     'gtkAddTimeout' returns an object of class '"GtkTimeoutId"'. This
     is an integer giving the identifier returned by the low-level Gtk
     interface.

_N_o_t_e:

     THIS STUFF IS VERY OLD AND DEPRECATED (compatibility wrappers for
     RGtk 1)

     This does not currently work when running directly in R. However,
     when running R inside another application such as GGobi, Gnumeric,
     etc. it and other event-loop facilities will work.

     If one wanted to reset the timeout but with a different interval,
     one should register a new timeout within the function and return
     'FALSE'.

_A_u_t_h_o_r(_s):

     Duncan Temple Lang <duncan@research.bell-labs.com>

_S_e_e _A_l_s_o:

     'gtkAddIdle' 'gtkRemoveIdle' 'gtkAddCallback'

