ref: 7cf8369411a3b9348f862bccaa4147b9aaf38e67
parent: 16784a2e45937c6d4df5fe21c0838f8a7dfeb0a7
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Sat Jan 11 19:19:39 EST 2020
vnc/devdraw: fix topnwindows() panic when images are not windows (thanks aiju) see changeset 319be6cfe7ef