gdkPixbufRenderToDrawableAlpha     package:RGtk2     R Documentation

_g_d_k_P_i_x_b_u_f_R_e_n_d_e_r_T_o_D_r_a_w_a_b_l_e_A_l_p_h_a

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

     Renders a rectangular portion of a pixbuf to a drawable.  The
     destination drawable must have a colormap. All windows have a
     colormap, however, pixmaps only have colormap by default if they
     were created with a non-'NULL' window argument. Otherwise a
     colormap must be set on them with gdk_drawable_set_colormap.
     *WARNING: 'gdk_pixbuf_render_to_drawable_alpha' has been
     deprecated since version 2.4 and should not be used in
     newly-written code. This function is obsolete. Use 'gdkDrawPixbuf'
     instead.*

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

     gdkPixbufRenderToDrawableAlpha(object, drawable, src.x = 0, src.y = 0, dest.x, dest.y, width = -1, height = -1, alpha.mode = NULL, alpha.threshold = NULL, dither = "GDK_RGB_DITHER_NORMAL", x.dither = 0, y.dither = 0)

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

'object': ['GdkPixbuf']  A pixbuf.

'drawable': ['GdkDrawable']  Destination drawable.

 'src.x': [integer]  Source X coordinate within pixbuf.

 'src.y': [integer]  Source Y coordinates within pixbuf.

'dest.x': [integer]  Destination X coordinate within drawable.

'dest.y': [integer]  Destination Y coordinate within drawable.

 'width': [integer]  Width of region to render, in pixels, or -1 to use
          pixbuf width.

'height': [integer]  Height of region to render, in pixels, or -1 to
          use pixbuf height.

'alpha.mode': ['GdkPixbufAlphaMode']  Ignored. Present for backwards
          compatibility.

'alpha.threshold': [integer]  Ignored. Present for backwards
          compatibility

'dither': ['GdkRgbDither']  Dithering mode for GdkRGB.

'x.dither': [integer]  X offset for dither.

'y.dither': [integer]  Y offset for dither.

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

     On older X servers, rendering pixbufs with an alpha channel
     involves round trips to the X server, and may be somewhat slow.

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

     Derived by RGtkGen from GTK+ documentation

