most part, this should not break anyone's code. However, it's now
possible/encouraged to use g_object_ref()/g_object_unref() and other
GObject features with these GDK types. The converted types are:
GdkWindow, GdkDrawable, GdkPixmap, GdkImage, GdkGC, GdkDragContext,
GdkColormap
- All drawables including pixmaps used to have a type tag, the
GdkWindowType enumeration, which included GDK_WINDOW_PIXMAP.
GdkWindowType is now a property of GdkWindow _only_, and there is
no GDK_WINDOW_PIXMAP. You can use the GDK_IS_PIXMAP() macro
to see
if you have a pixmap, if you need to know that.
- GtkStyle and GtkRcStyle are now subclasses of GObject as well.
This breaks theme engines quite badly, but shouldn't affect most
other code.
- xthickness/ythickness have moved from GtkStyleClass to GtkStyle
(from class to instance). This gives themes a bit more flexibility
and is generally more of the Right Thing. You can trivially fix
your code with s/style->klass->xthickness/style->xthickness/g and
same for ythickness.
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