diff OrthancStone/Sources/Scene2DViewport/UndoStack.cpp @ 1683:6594c9709d33

IsSceneAlive now ensures viewport is reachable
author Benjamin Golinvaux <bgo@osimis.io>
date Wed, 25 Nov 2020 12:16:11 +0100
parents 8563ea5d8ae4
children 9ac2a65d4172
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