Creates a pixmap and a mask bitmap which are returned in the pixmap_return
and mask_return arguments, respectively, and renders a pixbuf and its
corresponding thresholded alpha mask to them. This is merely a convenience
function; applications that need to render pixbufs with dither offsets or to
given drawables should use gdk_draw_pixbuf() and gdk_pixbuf_render_threshold_alpha().
The pixmap that is created is created for the colormap returned
by gdk_rgb_get_colormap(). You normally will want to instead use
the actual colormap for a widget, and use
gdk_pixbuf_render_pixmap_and_mask_for_colormap().
If the pixbuf does not have an alpha channel, then *mask_return will be set
to NULL.
Creates a pixmap and a mask bitmap which are returned in the pixmap_return and mask_return arguments, respectively, and renders a pixbuf and its corresponding thresholded alpha mask to them. This is merely a convenience function; applications that need to render pixbufs with dither offsets or to given drawables should use gdk_draw_pixbuf() and gdk_pixbuf_render_threshold_alpha(). The pixmap that is created is created for the colormap returned by gdk_rgb_get_colormap(). You normally will want to instead use the actual colormap for a widget, and use gdk_pixbuf_render_pixmap_and_mask_for_colormap(). If the pixbuf does not have an alpha channel, then *mask_return will be set to NULL.