Durable results of the M2c on-glass bring-up (.173, 2026-07-22):
- The base IddCxMonitorQueryHardwareCursor DDI slot is stubbed to
STATUS_NOT_SUPPORTED on WDK 26100 — add the ...QueryHardwareCursor3
wrapper (wdk-iddcx) and drain it instead; v3 X/Y are only meaningful
when PositionValid, so a position-invalid tick keeps the prior position.
- Hardware-cursor setup is per-mode-commit: the OS silently reverts to a
software cursor on every mode commit, so re-issue the setup on each
swap-chain assignment (monitor::resetup_cursor, called from
assign_swap_chain) or the query fails NOT_SUPPORTED forever.
- One caps definition for initial setup and re-setup, resting at XOR
FULL: the query delivers ONLY alpha shapes in every configuration
(all three ColorXorCursorSupport levels, event-driven and 30 Hz
polled) — masked/monochrome cursors never arrive. FULL keeps the
frame cursor-free for ALL cursor types; the full-fidelity shape comes
from the session-side cursor source in the host
(design/remote-desktop-sweep.md §8).
- Poll the query at ~30 Hz instead of pure event-wait: masked cursors
never fire the data event, and the seqlock's position/visibility
should stay fresh regardless.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
enricobuehlerandClaude Opus 4.8
d2cc770938