PND_INRESIZE
while (pnd->pnd_flags & PND_INRESIZE)
pnd->pnd_flags |= PND_INRESIZE;
pnd->pnd_flags &= ~PND_INRESIZE;
while (pnd->pnd_flags & PND_INRESIZE)
pnd->pnd_flags |= PND_INRESIZE;
if (pnd->pnd_flags & PND_INRESIZE) {
pnd->pnd_flags &= ~PND_INRESIZE;
while (pnd->pnd_flags & PND_INRESIZE)
pnd->pnd_flags |= PND_INRESIZE;
if (!(pnd->pnd_flags & PND_INRESIZE))
pnd->pnd_flags &= ~PND_INRESIZE;