PixbufAlphaMode

Description:

[ CCode ( cprefix = "GDK_PIXBUF_ALPHA_" , type_id = "gdk_pixbuf_alpha_mode_get_type ()" ) ]
[ Version ( deprecated = true , deprecated_since = "2.42" ) ]
public enum PixbufAlphaMode

Warning: PixbufAlphaMode is deprecated since 2.42.

Control the alpha channel for drawables.

Note:

There is no user of GdkPixbufAlphaMode in GdkPixbuf, and the Xlib utility functions have been split out to their own library, gdk-pixbuf-xlib

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.


Namespace: Gdk
Package: gdk-pixbuf-2.0

Content:

Enum values:

  • BILEVEL - A bilevel clipping mask (black and white) will be created and used to draw the image.
  • FULL - For now falls back to BILEVEL.