int cch = widechartomultibyte(cp_acp, 0, filterinfo.achname,
max_filter_name, szname, max_filter_name, 0, 0);
if (chh > 0)
messagebox(null, szname, text("filter name"), mb_ok);
#endif
// the filter_info structure holds a pointer to the filter graph
// manager, with a reference count that must be released.
if (filterinfo.pgraph != null)
{
filterinfo.pgraph->release();
}
pfilter->release();
}
penum->release();
return s_ok;
}
2 枚举pin
