bjorn.karlsson@readsoft.com wrote:
HANDLE hPrinter=0; OpenPrinter(_T("Some printer"),&hPrinter,0); if (boost::shared_ptr<void> p(hPrinter,&ClosePrinter)) {
}
While this works, it doesn't convey the intent of the code (nor preserve it): the resource should typically not be shared, only scoped, and I believe that scoped_ptr<X,D> would be a perfect fit.
A zero-overhead scoped_ptr<X, D> would require a helper class here: struct printer_deleter { void operator()(void * pv) const { ClosePrinter(pv); } } scoped_ptr<void, printer_deleter> p(hPrinter); The other option is scoped_ptr<void, void (*) (void *)> p(hPrinter, &ClosePrinter); that would increase sizeof(scoped_ptr) and is of questionable utility. :-) There is always the option to define a dedicated printer class, of course.