gdkDeviceGetHistory          package:RGtk2          R Documentation

_g_d_k_D_e_v_i_c_e_G_e_t_H_i_s_t_o_r_y

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

     Obtains the motion history for a device; given a starting and
     ending timestamp, return all events in the motion history for the
     device in the given range of time. Some windowing systems do not
     support motion history, in which case, 'FALSE' will be returned.
     (This is not distinguishable from the case where motion history is
     supported and no events were found.)

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

     gdkDeviceGetHistory(object, window, start, stop)

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

'object': ['GdkDevice']  a 'GdkDevice'

'window': ['GdkWindow']  the window with respect to which which the
          event coordinates will be reported

 'start': [numeric]  starting timestamp for range of events to return

  'stop': [numeric]  ending timestamp for the range of events to return

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

     A list containing the following elements: 

  retval: [logical] 'TRUE' if the windowing system supports motion
          history and at least one event was found.

'events': ['GdkTimeCoord']  location to store a newly-allocated list of
          'GdkTimeCoord', or 'NULL'

'n.events': [integer]  location to store the length of 'events', or
          'NULL'

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

     Derived by RGtkGen from GTK+ documentation

