Re-checks the physical button before resuming an internal drag and treats a button-up move mid-drag as a release, closing a stale-payload/silent-drop bug; splits the OS hand-off seam into its own TU for the line ceiling; corrects two docs and skips a redundant module-path lookup.
A code-ownership proof (window class procedure's module, via the pure window_origin) plus REAPER's FX-surface token routes a plugin editor to OLE; FX chrome keeps the instrument drop. The OLE loop re-asks the law each turn, so passing a plugin editor stays reversible.
Removed DRAFT marker on approved readout strings; corrected "paint and cursor cannot disagree" to note drag-cue suppression; renamed the width test to state it only bounds character count, not pixels; trimmed restated rationale to its CLAUDE.md/header home.
Promote drainStateNow's switch to error-on-missing-case locally; set DWLP_MSGRESULT on WM_SETCURSOR; add an HTCLIENT guard; skip refreshBusyCursor during a live drag; mark the docked-dialog WM_SETCURSOR routing premise [verify - DAW].
Both command hooks intercept Edit: Undo (40029) and Edit: Redo (40030) and consume
nothing. Undo routes that never dispatch an action remain uncovered.
Trace lines fill a 4096-line ring instead of hitting the console per line;
DUMP_UNDO_TRACE drains it in one ShowConsoleMsg call. Overflow is marked, not silent.
One switch (REASAMPLER_UNDO_TRACE) gates every line. Traces span open/close
reasons, FX writes, UndoBlock depth, timer standoffs, and load-state hooks.
All four actions share one body; the point turns on a model diff, so a no-op
leaves history and the Undo button alone. The Save-As prompt stays outside.
Every opener ends the span first, so a tag fired mid-drain no longer hijacks the
switch's point. One stated criterion governs both lane sites; no-op actions discard.
Flag writes are silent from a timer, so a block around a reapply or the reconcile
repair could only manufacture a point. The real switch's span is unchanged.
A Ctrl-Z mid-span used to close the pre-undo block over post-undo state; it now
terminates at BeginLoadProjectState and stops the drain where it stands.
fxReclaimActivity reports Online/Offline/Idle; fxReclaimPending is unchanged.
applyMode now returns with its undo block open; the reclaimer closes it when the drain
settles. A transport deferral or a tab switch ends it early -- two points, never a leak.
Adopting silently wipes hand repairs or hides untouched tracks forever; refusing was rejected too. EXPOSE hands the track back and self-heals on the next apply.
Extends the OnTimer guard to skip session.poll() itself while modeApplyInProgress(), preventing an undo/redo or project-switch reload from replacing the view model under an in-flight applyMode.
Renamed the drain's undo point to "Design View FX state" (it restores as often as it parks). Extended the nesting audit to cover a block opening inside the drain's own block. Marked post-fix undo behavior as inference pending DAW checks.
daniel