Third discriminator measured and rejected: the log shows the restore's resize
arrives with fg=True (22:44:08), so foreground ownership no more separates it
from a user gesture than the placement flags did.
FMX simply exposes nothing usable — no resize while iconic, and the restore's
resize is indistinguishable from the user's own. So stop inferring and observe
the transition at the OS level: SetWinEventHook on EVENT_SYSTEM_MINIMIZESTART
/ MINIMIZEEND, scoped to our process, WINEVENT_OUTOFCONTEXT (no injection,
callback on our thread).
Minimise start raises a guard that makes the resize handler ignore everything
until the restore settles; minimise end re-applies the state the user actually
left, in both directions. Hook failure is non-fatal — only the preservation is
lost. Unhooked in FormDestroy.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
r-zakarya
7a19bdc13b
