Why every previous attempt could not work: the main thread is BUSY inside
FormCreate and pumps no message, and that is exactly when FMX creates and
shows its taskbar proxy. A WinEvent hook, a timer, a queued call — none of
them can run in that window. Deferring the server start shortened the window
but did not remove it, because the proxy is created regardless.
A worker thread is the one thing still running while the main thread blocks.
It polls for our TFMAppClass window (matched on our own process id) and hides
it the instant it appears; ShowWindow is safe cross-thread. It stops as soon
as the tray startup completes, with a 10 s ceiling so it can never linger.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
r-zakarya
4f2aff9de4
