Gets a named source from a resource file. Names for a resources can be given as a variable set of, null terminated, string arguments. Each string specifies one or more levels in the naming tree. A simple string without '.' characters specifies a single level in the naming tree where as a dot separated set of names in a string specify a series of names in the naming tree.
int IResFile_GetNamedSourceV(IResFile *pif, uint16 restype, ISource **ppif, va_list *args);
AEE_SUCCESS: Resource was found and loaded AEE_EFAILED: Resource could not be found or failed to load ENOTSUPPORT: Sources are not supported for this resource file ENOMEMORY: Memory could not be allocated for the source result