We’ve recently had a report of loading our VST3 plugins in Cubase 10 on Windows 7 causing the host window’s scale factor to change
This is reproducible with the demo Gain Plugin as long as
JUCE_WIN_PER_MONITOR_DPI_AWARE is set to 1
With that flag set to 0 the plugin window is blurry but the host window is unaffected by loading the plugin
This is what the window looks like before loading the Gain Plugin
After loading the plugin you can see all of the main host’s window title is far larger, as are the toolbar options at the top
Would you suggest trying the
ScopedDPIAwarenessDisabler in the VST3 wrapper as well as the VST2 one?