void gdk_toplevel_present ( GdkToplevel* toplevel, GdkToplevelLayout* layout )
toplevel after having processed the
If the toplevel was previously not showing, it will be showed,
otherwise it will change layout according to
GDK may emit the
GdkToplevel::compute-size signal to let
the user of this toplevel compute the preferred size of the toplevel surface.
Presenting is asynchronous and the specified layout parameters are not guaranteed to be respected.
GdkToplevelLayoutobject used to layout.
The data is owned by the caller of the method.