Files
rustdesk/src/platform
RustDeskandClaude Fable 5 85a5fefab8 fix(windows): prevent ghost and duplicate tray icons (#15689) (#15690)
* docs(agents): require minimally invasive, additive-first patches

Codify the review feedback from the tray ghost-icon fix: fixes should
add self-contained code around existing lines instead of restructuring
them, keep platform-specific logic in src/platform/ with fn-local
imports, and leave only thin one-line hooks in shared files.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(windows): stop duplicate tray icons from piling up (#15689)

`check_process("--tray", ..)` is used to decide whether a tray process
needs to be spawned, but it can miss one that is already running: it
cannot read the command line of an elevated process from a non-elevated
one (the installer spawns the tray elevated), and wmic, used by 32-bit
builds since #11638, is gone from newer Windows 11. `connection.rs` runs
that check once per incoming connection, so every miss added another tray
icon and they kept piling up, which is the same blind spot behind #6692.

Hold a named mutex in the session namespace as the authoritative single
instance guard, so a redundant tray process exits before creating an
icon. `ERROR_ACCESS_DENIED` also counts as "already running", since it
means the mutex belongs to a tray we may not touch.

Also remove the icon before the tray menu's "Stop service" calls
uninstall_service(): on success it ends the process with
std::process::exit, which skips the destructor that would call
Shell_NotifyIcon(NIM_DELETE), so every click left a ghost icon behind.
The icon is shown again if stopping the service failed or was cancelled.

Ghost icons from the taskkill in the install/update/service flows are
left alone here.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(windows): note that update_me's pid lookup can silently find nothing

The pids are matched by command line, which comes back empty for a 32-bit
build reading 64-bit processes (hence the `wmic` fallback of #11638, and
`wmic` is no longer installed by default since Windows 11 24H2) and for a
non-elevated process reading an elevated one. `taskkill` matches by image
name and still works, but the session lists are then empty, so the restore
guard silently restores nothing and the update leaves the user without a
tray icon and main window.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(windows): record the confirmed cause of the duplicate tray icons

Process Explorer output in #15689 pinned it down: run_after_run_cmds()
spawns the tray in the caller's own context, so installing or toggling
the service from a RustDesk that was itself started elevated leaves a
high integrity tray behind, which a medium integrity main window cannot
inspect afterwards. Record where the detection fails exactly, so the next
reader doesn't have to rediscover that the executable path, not the
command line, is what comes back empty.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-29 12:18:57 +08:00
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2025-08-03 16:00:52 +08:00
2026-01-09 10:03:14 +08:00