gdk wrapper for XSetDashes

[Alexander Larsson <alla lysator liu se>]

In my current project i use XSetDashes to specify how the dashes on lines 
should look like, i would like this to be wrapped by gdk.

GDK_LINE_ON_OFF_DASH is not very usable without it.

Is this done or planned in 1.1? Do you want patches for it (not very hard...)?

/ Alex