gdkWindowShapeCombineRegion      package:RGtk2      R Documentation

_g_d_k_W_i_n_d_o_w_S_h_a_p_e_C_o_m_b_i_n_e_R_e_g_i_o_n

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

     Makes pixels in 'window' outside 'shape.region' be transparent, so
     that the window may be nonrectangular. See also
     'gdkWindowShapeCombineMask' to use a bitmap as the mask.

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

     gdkWindowShapeCombineRegion(object, shape.region = NULL, offset.x, offset.y)

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

'object': ['GdkWindow']  a 'GdkWindow'

'shape.region': ['GdkRegion']  region of window to be non-transparent

'offset.x': [integer]  X position of 'shape.region' in 'window'
          coordinates

'offset.y': [integer]  Y position of 'shape.region' in 'window'
          coordinates

_D_e_t_a_i_l_s:

     If 'shape.region' is 'NULL', the shape will be unset, so the whole
     window will be opaque again. 'offset.x' and 'offset.y' are ignored
     if 'shape.region' is 'NULL'.

     On the X11 platform, this uses an X server extension which is
     widely available on most common platforms, but not available on
     very old X servers, and occasionally the implementation will be
     buggy. On servers without the shape extension, this function will
     do nothing.

     This function works on both toplevel and child windows.

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

     Derived by RGtkGen from GTK+ documentation

