Commit Graph
281 Commits
Author SHA1 Message Date
gramps 2670ac022b feat(media): play the clip's soundtrack and share one decode pipe
A video file was picture-only: the decode pipe passed `-an`, so a starting-soon
or BRB clip with music played silent everywhere. Adds sound to every clip and
collapses the two decoders into one.

- `Services/VideoClipPipe.cs`: the shared pipe behind `MediaVideoSource` (TASK 21)
  and `AlertClipDecoder` (TASK 47) — video (`rawvideo bgra`, scaled) + audio
  (`f32le -ac 2 -ar 48000`, 50 ms chunks, byte-carry across reads), both paced to
  real time, loop restarts both so picture and sound stay together. Alert
  behaviour is unchanged.
- `MediaVideoSourceManager` applies the layer's Level/Mute per session and raises
  `AudioAvailable`; `MainViewModel` feeds it to the new
  `AudioMixer.EnqueueDesktopMediaAudio`, which joins the DESKTOP/GAME ring so the
  desktop fader and the mic auto-ducker apply exactly as they do for game audio
  and TRAX (creator ruling 2026-11-05: audio joins the group).
- Per-layer `MediaMuted` + existing `MediaVolume` surfaced as Mute/Level in the
  properties panel; `MediaMuted` persisted (ALTER TABLE guard + SELECT/INSERT).
- Level/mute are per SESSION because one decoder is shared per file path — the
  last layer touched wins; one decoder per layer would play the file twice.

Test: `MediaSourceAudioTests` — the pipe emits 50 ms chunks at 48k stereo, the
manager scales by level and drops when muted, and a media layer's sound moves the
desktop meter. Alert/decode suites unchanged and green.

Docs: task-21 closed on item 10, the "silent soundtrack" facts corrected in
frame-pipeline/output/overlays, HANDOFF rewritten. verify.sh green (529 passed;
the two documented pre-existing failures only).
2026-11-05 07:54:06 -08:00
gramps 776f84fb88 docs(media): correct the audio claim — a video file's sound is silent, not loopback-carried 2026-11-05 07:22:15 -08:00
gramps 77d7208bfa feat(media): add a video file layer that decodes into the scene
TASK 21's picker slice: the decoder, manager, pacing and loop mechanism were
already shipped but nothing ever acquired a session, so a media Source rendered
nothing. Adds "Video File" to the (+) menu (video-filtered OpenFileDialog),
one decode session per distinct path with a HasSession guard, release when the
last scene reference goes, and a post-load reconcile. Loop is a manager-level
per-path answer ("any live reference loops") applied before StartAsync and
updated live via SetLooping. Properties panel shows the file with Change… and
Loop. Volume stays unwired: media audio rides the desktop loopback, TRAX-style.

Reference: OBS's media source (file → decode → composite into the scene) is the
established answer for this feature; the lifecycle shape mirrors this repo's
WebView2/ScreenCapture registration rather than inventing a new one.

Test: ytLive.Tests/MediaSourceAcquisitionTests.cs — add starts one decoder and
frames reach the layer, loop flip reaches the decoder, remove stops it.

Docs: task-21 closed, TASKS row + Day-4 row + stale 3·17 row corrected,
frame-pipeline acquisition note, HANDOFF rewritten. verify.sh green.
2026-11-05 07:17:43 -08:00
gramps 785b5ff8f3 chore(assets): delete four unreferenced brand exports
The four llamacasty-* files were source exports, not assets: shipped art is
embedded via <Resource> in ytLive.csproj and read through pack: URIs, and the
Store tiles derive from Assets/llamacasty-logo.jpg. None of the four appears in
the csproj, any XAML Source/Icon, or a script, so they were dead weight that
kept resurfacing as untracked noise.

MyMistakes.md gains the recipe (csproj list + grep = 30-second verdict) so a
loose file in Assets/ is never re-litigated; HANDOFF drops the stale note.
2026-11-04 17:50:50 -08:00
gramps 5c4acf141b feat(text): composite shared text rasters in output
Raster static text on UI-thread changes and reuse the same transparent BGRA frame in preview and all compositor paths. Cache text frame identity in the frame-pump signature and invalidate static bakes on edits. Follow OBS text-source conventions: https://obsproject.com/kb/text-sources
2026-11-04 15:01:47 -08:00
gramps 106896c408 docs: close Task 53 and advance queue 2026-11-04 13:49:39 -08:00
gramps 1993e7cc8b docs(task-53): accept vertical live-player check 2026-11-04 11:37:10 -08:00
gramps ede6ecac8e docs(task-53): retire platform safe-zone requirement 2026-11-04 11:35:29 -08:00
gramps bde2a4cf4b docs(task-53): accept six output samples and advance queue 2026-11-04 11:32:44 -08:00
gramps 4b7e798757 feat(ui): show YouTube-confirmed live state in top bar
Normal ON-AIR stays red until YouTube reports lifeCycleStatus=live, then turns green; TEST stays gold and stop restores the idle color.

Status-color reference: https://www.carbondesignsystem.com/building-blocks/core/patterns/status-indicators
2026-11-04 11:19:40 -08:00
gramps f921c0174b docs: reconcile Day 2 release policy and output tasks 2026-11-04 11:18:16 -08:00
gramps a6aea5bf26 feat(ui): color and acknowledge pinned log errors
Add independent AppLog message types and explicit Class 1/2 severity. Wrap and color log rows, pin Class 1 above Class 2, and let acknowledgement return entries to the current-launch timeline without changing file format or rotation.

Ref: https://logtape.org/manual/levels
2026-11-02 18:17:18 -08:00
gramps 01a3fcaaf7 docs: replace system-message strip with Logs tab 2026-11-02 15:55:04 -08:00
gramps 264a90dae8 test(ui): align top bar mode guard with live decision 2026-11-02 11:43:57 -08:00
gramps c856d11fb5 test(ui): configure EDIT-off live start in pill guard 2026-11-02 11:38:17 -08:00
gramps c9bd7e6093 test(audio): match mic fader unity ceiling 2026-11-02 11:34:48 -08:00
gramps e6a7147dc3 test(ui): follow the relocated settings gear 2026-11-02 11:31:49 -08:00
gramps 0e1f948189 test(scoreboard): check shared dev-build gate 2026-11-02 11:28:11 -08:00
gramps caf91e6564 test(ui): read notification colors from app theme 2026-11-02 11:24:50 -08:00
gramps 82609a5046 test(ui): follow shared geometry panel gate 2026-11-02 11:20:54 -08:00
gramps 91e308e8e2 test(ui): inspect themed property hierarchy 2026-11-02 11:18:10 -08:00
gramps 221b81628a test(scoreboard): assert the themed pill switch 2026-11-02 11:14:15 -08:00
gramps 3985a413a7 test(ypp): keep upload window fixture current 2026-11-02 11:10:21 -08:00
gramps 9fa06c67c2 feat(ui): add current-launch logs tab
Add Live Chat and Logs tabs to the non-edit left panel. Expose a bounded process-local AppLog feed so the newest messages appear first without importing earlier startup.log contents or changing file logging.

Ref: https://obsproject.com/forum/resources/understanding-obs-studio-log.473
2026-11-02 11:06:43 -08:00
gramps 20f059422b feat(alerts): add scene-local recent ticker
Model the AlertBox and standalone ticker with shared settings; scene tickers render the in-memory active and queued events without saving history. Keep AlertBox content active-event-only.

Ref: https://obsproject.com/kb/obs-studio-overview
2026-11-02 10:47:48 -08:00
gramps 6208cb9409 feat(ui): route locked tiers through About
Keep non-owner resolution choices visible but muted. Selecting one preserves the free tier and opens About; external navigation is only the explicit llamacasty.com link. Ref: https://streamlabs.com/desktop
2026-11-02 09:41:38 -08:00
gramps ff5e8d94ae feat(entitlement): pivot to paid app ownership
Check Steam ownership of the paid app with BIsSubscribedApp; keep Debug fake ownership out of Release. Ref: https://partner.steamgames.com/doc/api/ISteamApps#BIsSubscribedApp
2026-11-02 09:18:03 -08:00
gramps 6d1c982e26 feat(entitlement): IEntitlement seam — Steam DLC answers, everything fails closed
The first half of surge day 1. One question, "may this session emit Pro output?", with
one method on the interface so nothing downstream knows which rail proved it.

SteamEntitlement reads the lifetime SKU the way Valve intends: SteamAPI.Init() then
SteamApps.BIsDlcInstalled(dlcAppId). Four different failure paths all resolve to the
free tier rather than to Pro or to a crash — no DLC id configured, no Steam client,
steam_api64.dll missing (a throw on first touch), and simply not owned. A copied folder
run without Steam is the common case, not an exceptional one.

NotConfigured() is the shipping default until Steamworks creates the DLC app; it answers
false without ever touching the native library, so today's builds behave exactly as they
did before this commit.

HasProOutput is now IsPremium || DeveloperMode || rail, with an internal EntitlementOverride
test seam (internal, because a public setter here is a licence bypass). Four tests: no id
reads false, no client reads false without throwing, the fake reports what a test sets, and
the view model takes its answer from the rail.

Steamworks.NET 2024.8.0 added; the native DLL still comes from scripts/steam-sdk.sh, so the
csproj change is three lines and no formatting churn.
2026-11-01 08:13:25 -08:00
gramps fdb27f0758 feat(ui): gear to the rail, EDIT on the panel edge, preview undo/redo
Three creator directives (2026-11-01), done ahead of the surge.

**Gear moved to the preview rail** — first tab, orange (Brush.Attention), gear icon
only. Left-click opens the same app menu the top bar gear owned (Settings / Bug /
Feature / About), right-click goes straight to App Settings; both behaviours moved
with it, so nothing lost an entry point. TopBar keeps the wordmark and EDIT.

**EDIT right edge aligned to the layers panel.** The work area is margin 8 + a 360px
column, the top bar is padding 16, so the shared edge is 352 inside the bar. TopBar
column 0 is now a fixed 352 grid with EDIT right-aligned in it — alignment by
arithmetic instead of by eye.

**Preview undo/redo: Ctrl+Z / Ctrl+Shift+Z.** Models/PreviewHistory snapshots element
REFERENCES plus geometry, visibility, order and membership — a deep clone would mirror
every property of a dozen element subclasses and quietly miss the next one added.
One snapshot per gesture (pushed at drag/resize start, never in the move loop), bounded
at 50, redo survives multiple undos, cleared on layout load. Gated on EditingActive:
undo while the preview shows program output would rewrite a scene nobody is looking at.

Honest scope, in the type's doc comment: layout edits only. Colour/opacity/border/font
edits are not captured yet, so Ctrl+Z after one of those restores the last layout change.

6 tests in PreviewHistoryTests; 19 pass across it and the neighbouring UI classes; Debug
and Release both build at 0 warnings.
2026-11-01 07:46:10 -08:00
gramps bd669f2e73 docs(handoff): the six-day surge is the next action 2026-11-01 07:35:49 -08:00
gramps 68fdacc12d docs(handoff): trim to the 40-line cap 2026-11-01 07:33:00 -08:00
gramps 724f940f5e docs(handoff): 40 lines 2026-11-01 07:32:44 -08:00
gramps 832955bbb8 docs(handoff): fit the 40-line cap 2026-11-01 07:32:30 -08:00
gramps 7dab7ded36 docs(handoff): HANDOFF under the 40-line cap for the surge plan 2026-11-01 07:32:13 -08:00
gramps b2e8b26b6e docs(tasks): the surge week, coding only — five days sized at 3-5 units each
Non-coding is parked on Valve (identity verification, store page, depot); the week is code,
tests, debugging, polish. Ordered by what actually blocks a public build: entitlement seam
and licence UI (days 1-2), greyed tiers (2), visibility picker (3), stream resilience (3-4),
output contract (4), gold pass (5).

Sized honestly against the measured rate: ~50 units remain, 15-25 fit in five days, so the
plan names week-2 candidates and the five items that should not block launch at all
(scheduled streams, scene audio, defaults split, YPP slice 2, feedback batch).

Every unit carries the same definition of done — clean build, per-class tests, verify.sh on
the declared scope, and the falsified doc corrected in the same commit.
2026-11-01 07:31:52 -08:00
gramps 27fc6fb507 feat(profile): the free budget is pixels and fps, enforced once — with a dev-only release hatch
The paid delta is output quality, so the rule needs to be measurable rather than a word:
921,600 pixels and 30 fps, fail-closed. Models/OutputProfile.cs is that rule as pure
policy — a permitted tier passes through untouched (Pro, or the free tier's own 720p30),
a disallowed one resolves to the best tier the budget allows and carries ITS bitrate, so
a capped user is never offered an 8 Mbps budget for a 720p frame.

Applied once, in BuildEncoderOptions. That is genuinely one place: the stream and the
local recording are two output blocks of ONE ffmpeg process fed by one EncoderOptions,
so there is no second encoder to forget. (commercial.md claimed "both encoders — never
two checks"; the code is stronger than the doc, and the doc is corrected.)

Developer override, as asked: a "Developer mode — all resolutions" checkbox in App
Settings, bound to MainViewModel.DeveloperMode, which feeds HasProOutput. It is not
hidden in a release build — Controls/DeveloperPanel's Page and Compile items are removed
when Configuration != Debug, and OverlayHost adds it at runtime inside #if DEBUG, so a
shipped exe has no BAML for it at all. The setter also refuses the value when
DevBuild.IsDevelopment is false, which is now the single source for that question (the
scoreboard partial had its own duplicate const).

Two traps worth their lines: a `const bool` dev flag makes `if (!Flag) return;` an
unreachable-code warning in one configuration or the other (CS0162), so DevBuild uses
static readonly; and a Condition on an ItemGroup is invisible to a test reading
item.Attribute("Condition") — read the parent.

Tests: 14 pass across OutputProfileTests, AssemblyIdentityTests and StorePackagingTests.
The invariant test is the one that matters: iterate every shipped tier under a free
entitlement and assert none emits more than the budget, so a future 4K tier fails here
instead of shipping to everyone. App builds Debug and Release at 0 warnings.
2026-11-01 07:11:49 -08:00
gramps abfab25685 build: the exe is LlamaCasty.exe, and the publish script proves the artifact
Renames AssemblyName to LlamaCasty before the first Steam depot — Steamworks is explicit
that renaming a live exe is painful, so this had to land first, not later.

Four assembly-qualified pack URIs carried the old name, not three: MainWindow (window
icon), OverlayHost (logo), RenameRecordingDialog and KeepBroadcastDialog. Pack URIs
resolve by assembly name at runtime, so a stale one compiles, passes every test and then
silently renders nothing the first time that view opens. AssemblyIdentityTests guards
both halves — the assembly name, and no source XAML still naming the legacy assembly.
Packaging/Package.appxmanifest and package-msix.sh carry the exe name too.

scripts/publish.sh replaces the by-hand publish: single-file win-x64, ReadyToRun,
ffmpeg beside the exe, and it refuses to finish if ffmpeg, LICENSE, PRIVACY.md or
THIRD-PARTY-NOTICES.txt are missing, or if a test assembly leaked in.

That last guard exists because the first publish was wrong in a way no test could see:
PublishSingleFile + IncludeNativeLibrariesForSelfExtract bundled the libav*.dll family
into the exe — a 9-file output with no ffmpeg folder and a 182 MB binary, so the locator
would have found nothing at runtime. ExcludeFromSingleFile="true" on the content keeps
the folder a folder. Diffing against a control publish without the single-file flags
found it; guessing at item globs wasted two attempts first (recorded in MyMistakes.md).

Measured: 127 MB exe + 129 MB ffmpeg = 257 MB depot. Tests: AssemblyIdentity,
StorePackaging, BuildStamp, BundledFonts all pass; app builds with 0 warnings.
2026-11-01 07:01:50 -08:00
gramps 8f79b20a18 docs(distribution): Steam is the only channel — the zip, winget and the Store are dead
The site said "Coming soon to Steam" while the app docs still said direct download plus
winget primary with Steam parked. One of them had to move, and the creator's ruling is
Steam exclusive: a free app on Steam with the paid edition as a Steam DLC, and the
$10/month plan sold off-Steam by Polar.

Records the constraint that shapes the code, not just the prose:
- Steamworks requires in-app purchases to use the Steam Wallet (Microtransactions doc,
  quoted in commercial.md), so the monthly is *stated*, never *sold*, inside a Steam
  build; the lifetime is plain DLC bought on the store page and read with BIsDlcInstalled.
- Entitlement is `steamDlcOwned || polarKeyValid`, both resolving to one OutputProfile.
  steam_api64.dll ships beside the exe and is a functional dependency, not the rejected
  "IP protection" native DLL — without it DLC ownership cannot be read. Launched without
  Steam, the app falls back to the free profile rather than refusing to start.
- Signing is moot: Steam installs never meet SmartScreen. Artifact Signing stays on the
  shelf for the day a non-Steam download exists. Year-one fixed cost is ~$115.
- The exe rename must land before the first depot upload — Steamworks warns about
  renaming a live exe.

Distribution.md is rewritten to SteamPipe mechanics (publish output, depot, steamcmd,
DLC wiring, clean-account purchase/refund test). product.md, decisions.md (a new
"Steam exclusive" entry with every dead vector), TASKS.md (Steamworks entitlement row,
Steam packaging row), ai.md, index.md and the TASK 48 banner follow. MyMistakes.md gains
the Steam rules that cost real time today: installs skip SmartScreen, updates are free,
the Wallet rule, and the recurring-billing caveat.
2026-10-31 11:05:53 -07:00
gramps 57ef9e7a5e docs(commercial): the claim page was never needed, signing waits for revenue, and support is a filter
Four things derived this session superseded what the plan said twenty-four hours earlier,
and the docs are corrected where each one died:

**Licensing needs no server.** Polar's customer-portal endpoints authenticate on the key
itself plus the public organization_id; the org access token is only needed to create
products. Channel binding rides in `conditions: {channel_id}`, re-checked on every
validate — so the "claim page" (a hosted OAuth flow that wrote the UC id onto the key)
and the key database it implied are deleted. Device management, key rotation and
subscription auto-revocation are Polar's; four states, one lease, no callback endpoint.

**Signing is deferred until two subscribers.** It never removes the day-one SmartScreen
warning (EV's instant-bypass died in 2024), so buying it before revenue buys only the
publisher line. Renamed to Azure Artifact Signing, $9.99/mo Basic, and it requires a
paid Azure subscription. Year-one fixed cost drops from ~$135 to ~$15.

**The Store account is free.** Microsoft waived the $19 individual fee and removed the
$99 company fee in May 2026, which makes the Store the only zero-cost route to a
Microsoft-signed install — the free answer to SmartScreen, noted beside the paid one.

**Support is a filter, not a promise.** Email, best effort, no SLA, refunds on request
without argument; no training service, no helpdesk. A repeated question becomes a
training video on @llamacasty, which is content and monetization instead of a ticket.
GitHub issues on the releases repo are the deliberate friction.

Also settled: binaries live in a second Gitea repo (`llamacasty-releases`) push-mirrored
to a public GitHub repo — issues and assets public, code private, one publish direction
(a git mirror carries refs, not GitHub Release assets); `@llamacasty` is
standard-verified with intermediate features, so live streaming, >15 min uploads and
custom thumbnails work today and no SIM or ID is needed; and OAuth comes out of Testing
mode by publishing the app (100-user lifetime cap, no 7-day token death).

TASKS.md now opens with the four-day surge slice — artifact shape, output gate,
entitlement seam, real-machine day — because those are what the first public release
waits on. HANDOFF.md rewritten. MyMistakes.md gains the Polar recipe and the
"verify means three different things" entry. MARCOM.md gains the support→content loop
and the surface roles.
2026-10-31 10:08:05 -07:00
gramps 7827d239e2 docs(commercial): one source of truth for the money — prices, entitlement, channels
The commercial plan was spread over five documents written in five different weeks,
and they contradicted each other: product.md sold the Store, decisions.md called the
Store dead then re-opened, Distribution.md (736 lines) still described Polar as a
download host, MARCOM.md quoted "no subscription" next to a paid tier, and README.md
promised "free forever". An outsider could not tell what ships.

docs/ai/commercial.md is now the only place money is decided: free = whole app at a
921,600 px / 30 fps output profile covering the recording as well as the stream; Pro =
$10/mo or $400 lifetime through Polar, key bound to the buyer's YouTube channel ID via
a claim page, 2 activations, 7–14 day lease with offline grace, fail closed, never
downgrade a running stream; one portable zip + winget primary, Steam and the Store
parked; Azure Trusted Signing (~$9.99/mo), no EV; Founding 200 promo; ~$135/yr costs;
anti-piracy posture and what is permanently rejected.

Everything else now points at it instead of restating it:
- product.md — money sections replaced with pointers; packaging rewritten to
  winget-first, Store parked; signing updated to Trusted Signing.
- decisions.md — graveyard with cause of death for free-forever, the Store ordering,
  the updater, and the 2026-10-30 reversal of the quality-ceiling rejection.
- Distribution.md — rewritten to release mechanics only (artifact, GitHub Releases,
  winget manifest, signing, checklist, takedown): 736 → 120 lines.
- TASKS.md — TASK 54 rewritten, TASK 48's route settled, TASK 10 superseded, five new
  rows (entitlement seam, output-profile gate, licence UI, system messages, packaging).
- README.md — "free forever" replaced with the real split.
- capture.md — obs-backgroundremoval is GPL-3.0 and so licence-INCOMPATIBLE since the
  proprietary EULA; the old "compatible" line was falsified by that change.
- TASKS/task-10, task-48, task-51, task-54 — superseded-banner at the top of each, so
  none of them reads as current policy.
- HANDOFF.md — rewritten: plan settled, next code unit is the entitlement seam.

MARCOM.md and MONETIZATION.md (gitignored) were corrected in place: policy pointer at
the top of each, the flash removed from every live claim, the Polar fee break-even
corrected to ~$900/mo, and the projections flagged as written against a dead model.
2026-10-31 08:32:25 -07:00
gramps d4a4b1c80e docs(handoff): scoreboard units 1-10 landed; providers + goal inputs remain 2026-10-30 14:43:26 -07:00
gramps 8aa483f933 docs(handoff): audio dock shipped, awaiting an eyes-and-hands pass 2026-10-30 13:20:19 -07:00
gramps df0118ac52 docs(handoff): design conversion complete; spacing is a layout pass 2026-10-30 10:02:32 -07:00
gramps 7a49b38cae docs(handoff): every XAML surface tokenised; VM state colours are the last unit 2026-10-30 08:30:45 -07:00
gramps 66b85d3fcc docs(handoff): preview pane next, with the colour-picker trap recorded 2026-10-30 08:03:44 -07:00
gramps 8a2cb92d8c docs(handoff): shell converted, left panel is next 2026-10-30 07:56:13 -07:00
gramps 1defb71568 docs(handoff): design standard landed, token sweep in flight 2026-10-30 07:47:14 -07:00
gramps 5a102a4a37 docs: decisions log, queue trim, HANDOFF rewrite — the map stops being a treadmill
TASKS.md 467 → 66 lines: one line per live item, detail stays in TASKS/
task-*.md. The old catalogue (63 rows of paragraph status prose plus the
historical narration) is preserved verbatim as TASKS/archive.md — a
2026-10-29 snapshot, not the live queue. The "out of product" list and every
retired decision moved to docs/ai/decisions.md with cause of death.

HANDOFF.md 440 → 40 lines, and it is now OVERWRITTEN, not appended: branch,
what's in flight, next action, live landmines, pending creator checks. History
belongs to git log; the previous handoff is reachable at ee3c592:HANDOFF.md.

docs/ai/decisions.md (new) collects what no longer governs: the paid tier and
its pricing, Polar, Store IAP, the Store route and why it died, the deleted
Velopack updater, signing economics, the retired monetization ideas, and the
permanent out-of-product list.

Facts that lived in the old ai.md "Current limitations" section were re-homed
rather than dropped with the router rewrite: OAuth/DPAPI/session behaviour →
docs/ai/youtube-api.md; paths, persistence and the Google project number →
docs/ai/environment.md.

verify.sh caps now cover all four always-read files (AGENTS 210, ai 100,
HANDOFF 40, TASKS 120).

Docs-only unit: scope-check run, no build.
2026-10-29 11:10:51 -07:00
gramps ee3c59210d Settings: group preferences and open from gear
Group App Settings by purpose and let right-click on the gear open settings directly while preserving the left-click menu.

WPF event reference: https://learn.microsoft.com/en-us/dotnet/api/system.windows.uielement.previewmouserightbuttondown?view=windowsdesktop-10.0
2026-10-28 17:57:02 -07:00
gramps 769c616706 Preview: promote selected layer for hit testing
Temporarily raise the selected preview item and prioritize it in the custom hit test without changing scene order. Refresh integration-test expectations for Brand logo layers and explicit thumbnail assets.

WPF references: https://learn.microsoft.com/en-us/dotnet/api/system.windows.controls.panel.zindex?view=windowsdesktop-10.0 https://learn.microsoft.com/en-us/dotnet/desktop/wpf/graphics-multimedia/hit-testing-in-the-visual-layer
2026-10-28 13:09:15 -07:00