cairoMask               package:RGtk2               R Documentation

_c_a_i_r_o_M_a_s_k

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

     A drawing operator that paints the current source using the alpha
     channel of 'pattern' as a mask. (Opaque areas of 'pattern' are
     painted with the source, transparent areas are not painted.)

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

     cairoMask(cr, pattern)

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

    'cr': ['Cairo']  a cairo context

'pattern': ['CairoPattern']  a 'CairoPattern'

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

     Derived by RGtkGen from GTK+ documentation

