gtkPreviewSetGamma           package:RGtk2           R Documentation

_g_t_k_P_r_e_v_i_e_w_S_e_t_G_a_m_m_a

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

     Set the gamma-correction value for all preview widgets. (This
     function will eventually be replaced with a function that sets a
     per-preview-widget gamma value). The resulting intensity is given
     by: 'destination_value * pow (source_value/255, 1/gamma)'. The
     gamma value is applied when the data is set with
     'gtkPreviewDrawRow' so changing this value will not affect
     existing data in preview widgets. *WARNING:
     'gtk_preview_set_gamma' is deprecated and should not be used in
     newly-written code.*

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

     gtkPreviewSetGamma(gamma)

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

 'gamma': [numeric] the new gamma value.

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

     Derived by RGtkGen from GTK+ documentation

