Huw Davies (@huw) commented about dlls/dsound/tests/dsound8.c:
secondary=NULL; }
wfxe.Format.cbSize = sizeof(wfxe) + 1;
wfxe->Format.cbSize = sizeof(*wfxe) + 1;
Seems like here, for example, we set the size to be even larger, i.e. we'd need `sizeof(wfx) + sizeof(*wfxe) + 1`