NEAREST API CALL
SelectObject asks for an given object no to be selected, an internal list of objects is kept by libwmf.
The object no is an index into this list.
Object's include OBJ_PEN,OBJ_BRUSH,OBJ_PAL,OBJ_FONT & OBJ_REGION
SelectObject can select any of these to be the current object on their class, e.g. when you
select a brush, it becomes the current brush, etc etc. libwmf handles all of this stuff for
you (hopefully), see DeleteObject