PixbufAlphaMode#
Deprecated since version 2.42:
- There is no user of GdkPixbufAlphaMode in GdkPixbuf,
and the Xlib utility functions have been split out to their own library, gdk-pixbuf-xlib
- class PixbufAlphaMode#
Control the alpha channel for drawables.
These values can be passed to gdk_pixbuf_xlib_render_to_drawable_alpha() in gdk-pixbuf-xlib to control how the alpha channel of an image should be handled.
This function can create a bilevel clipping mask (black and white) and use it while painting the image.
In the future, when the X Window System gets an alpha channel extension, it will be possible to do full alpha compositing onto arbitrary drawables. For now both cases fall back to a bilevel clipping mask.