The win32u hook only works if it patches before DXGI caches the hybrid preference.
It was installed in DuplCapturer::open (first capture), but the SudoVDA
render-adapter selection creates a DXGI factory during virtual-display setup —
seconds earlier — so the preference was already cached and the hook had no effect
(churn persisted; log showed "render adapter chosen" at :02, "hook installed" at
:04). Call install_gpu_pref_hook() at the top of real_main(), before any command
runs, so it beats the first DXGI factory. (open() still calls it too; Once makes
the earliest call win.) Also fix the cosmetic function-cast-as-integer warning.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
enricobuehler
7cfeddc770