diff --git a/crates/punktfunk-tray/Cargo.toml b/crates/punktfunk-tray/Cargo.toml
index 9bdd98c2..db0644ca 100644
--- a/crates/punktfunk-tray/Cargo.toml
+++ b/crates/punktfunk-tray/Cargo.toml
@@ -42,7 +42,9 @@ windows = { version = "0.62", features = [
"Win32_Graphics_Gdi",
"Win32_Security", # CreateMutexW's SECURITY_ATTRIBUTES parameter type
"Win32_System_LibraryLoader",
+ "Win32_System_Registry", # AppsUseLightTheme — glyph color must match the themed menu
"Win32_System_Threading",
+ "Win32_UI_HiDpi",
"Win32_UI_Shell",
"Win32_UI_WindowsAndMessaging",
] }
diff --git a/crates/punktfunk-tray/build.rs b/crates/punktfunk-tray/build.rs
index a18b39e0..87390e87 100644
--- a/crates/punktfunk-tray/build.rs
+++ b/crates/punktfunk-tray/build.rs
@@ -25,6 +25,24 @@ fn main() {
// Task Manager / Explorer identity (matches the host's "Punktfunk Host").
res.set("FileDescription", "Punktfunk Tray");
res.set("ProductName", "Punktfunk");
+ // PerMonitorV2: without a DPI manifest the process is virtualized and its menu
+ // GDI-stretched — visibly blurry on any scaled display (most Windows 11 laptops).
+ res.set_manifest(
+ r#"
+
+
+
+
+
+
+
+
+
+ PerMonitorV2
+
+
+"#,
+ );
res.compile().expect("embed windows icon resources");
}
}
diff --git a/crates/punktfunk-tray/src/main.rs b/crates/punktfunk-tray/src/main.rs
index 125a536f..387e2a7e 100644
--- a/crates/punktfunk-tray/src/main.rs
+++ b/crates/punktfunk-tray/src/main.rs
@@ -20,6 +20,8 @@ mod linux;
mod status;
#[cfg(windows)]
mod win;
+#[cfg(windows)]
+mod win_theme;
/// CLI configuration (hand-rolled parse, house style). The mgmt address/port default to the
/// host's defaults; they are flags because the tray cannot read `host.env` on Windows (it is
diff --git a/crates/punktfunk-tray/src/status.rs b/crates/punktfunk-tray/src/status.rs
index 74aa02a3..a08b48c3 100644
--- a/crates/punktfunk-tray/src/status.rs
+++ b/crates/punktfunk-tray/src/status.rs
@@ -29,6 +29,10 @@ pub struct Summary {
pub video_streaming: bool,
pub audio_streaming: bool,
pub session: Option,
+ /// Display name of the streaming client (trust-store name, else the device's own), for the
+ /// connect toast. `#[serde(default)]`: absent when idle, nameless, or from an older host.
+ #[serde(default)]
+ pub client_name: Option,
pub paired_clients: u32,
pub native_paired_clients: u32,
pub pin_pending: bool,
@@ -404,6 +408,7 @@ mod tests {
height: 1440,
fps: 120,
}),
+ client_name: streaming.then(|| "studio-deck".into()),
paired_clients: 1,
native_paired_clients: 2,
pin_pending: false,
diff --git a/crates/punktfunk-tray/src/win.rs b/crates/punktfunk-tray/src/win.rs
index 8c50cd31..f8c9e485 100644
--- a/crates/punktfunk-tray/src/win.rs
+++ b/crates/punktfunk-tray/src/win.rs
@@ -8,7 +8,7 @@
//! left admin-gated rather than DACL-opened to every local user.
use std::os::windows::ffi::OsStrExt;
-use std::sync::atomic::{AtomicBool, AtomicIsize, Ordering};
+use std::sync::atomic::{AtomicBool, AtomicIsize, AtomicU8, Ordering};
use std::sync::{Mutex, OnceLock};
use windows::core::{w, PCWSTR};
@@ -17,21 +17,25 @@ use windows::Win32::Foundation::{
};
use windows::Win32::System::LibraryLoader::GetModuleHandleW;
use windows::Win32::System::Threading::CreateMutexW;
+use windows::Win32::UI::HiDpi::GetSystemMetricsForDpi;
use windows::Win32::UI::Shell::{
- ShellExecuteW, Shell_NotifyIconW, NIF_ICON, NIF_MESSAGE, NIF_SHOWTIP, NIF_TIP, NIM_ADD,
- NIM_DELETE, NIM_MODIFY, NIM_SETVERSION, NIN_SELECT, NOTIFYICONDATAW, NOTIFYICON_VERSION_4,
+ SetCurrentProcessExplicitAppUserModelID, ShellExecuteW, Shell_NotifyIconW, NIF_ICON, NIF_INFO,
+ NIF_MESSAGE, NIF_SHOWTIP, NIF_TIP, NIIF_LARGE_ICON, NIIF_RESPECT_QUIET_TIME, NIIF_USER,
+ NIM_ADD, NIM_DELETE, NIM_MODIFY, NIM_SETVERSION, NIN_SELECT, NOTIFYICONDATAW,
+ NOTIFYICON_VERSION_4,
};
use windows::Win32::UI::WindowsAndMessaging::{
AppendMenuW, CreatePopupMenu, CreateWindowExW, DefWindowProcW, DestroyMenu, DestroyWindow,
- DispatchMessageW, FindWindowW, GetCursorPos, GetMessageW, LoadIconW, PostMessageW,
+ DispatchMessageW, FindWindowW, GetCursorPos, GetMessageW, LoadImageW, PostMessageW,
PostQuitMessage, RegisterClassW, RegisterWindowMessageW, SetForegroundWindow,
- SetMenuDefaultItem, TrackPopupMenuEx, TranslateMessage, HICON, MF_GRAYED, MF_SEPARATOR,
- MF_STRING, MSG, SW_HIDE, SW_SHOWNORMAL, TPM_BOTTOMALIGN, TPM_RIGHTBUTTON, WINDOW_EX_STYLE,
- WM_APP, WM_CLOSE, WM_COMMAND, WM_CONTEXTMENU, WM_DESTROY, WM_ENDSESSION, WM_NULL, WNDCLASSW,
- WS_OVERLAPPED,
+ SetMenuDefaultItem, TrackPopupMenuEx, TranslateMessage, HICON, IMAGE_ICON, LR_SHARED,
+ MF_GRAYED, MF_SEPARATOR, MF_STRING, MSG, SM_CXICON, SM_CXSMICON, SW_HIDE, SW_SHOWNORMAL,
+ TPM_BOTTOMALIGN, TPM_RIGHTBUTTON, WINDOW_EX_STYLE, WM_APP, WM_CLOSE, WM_COMMAND,
+ WM_CONTEXTMENU, WM_DESTROY, WM_ENDSESSION, WM_NULL, WM_SETTINGCHANGE, WNDCLASSW, WS_OVERLAPPED,
};
use crate::status::{Poller, TrayStatus};
+use crate::win_theme;
/// Keyboard "select" on the icon (Enter/Space) — `NIN_SELECT | NINF_KEY`; the windows crate
/// exports only NIN_SELECT.
@@ -79,6 +83,10 @@ struct App {
/// or falls back to showing the menu.
web_console: AtomicBool,
web_port: u16,
+ /// Streaming edge tracker for the connect toast: 0 = no status seen yet, 1 = not streaming,
+ /// 2 = streaming. The "no status yet" state keeps a tray started mid-session (sign-in while a
+ /// client already streams) from firing a stale toast.
+ streaming_seen: AtomicU8,
}
static APP: OnceLock = OnceLock::new();
@@ -128,6 +136,19 @@ pub fn run(args: crate::Args) -> anyhow::Result<()> {
return Ok(());
}
+ // Toast identity: the installer registers this AUMID under Classes\AppUserModelId with
+ // DisplayName "Punktfunk" + the brand IconUri (punktfunk-host.iss [Registry] — keep in sync),
+ // so the connect toast is attributed to "Punktfunk" with the logo instead of a generic entry.
+ // Must run before the notify icon exists. Unregistered (dev run) it degrades to the default
+ // attribution, never an error.
+ // SAFETY: static nul-terminated literal.
+ unsafe {
+ let _ = SetCurrentProcessExplicitAppUserModelID(w!("unom.punktfunk.tray"));
+ }
+
+ // Before the first menu: opt this process's popup menus into the system dark mode.
+ win_theme::init_dark_mode();
+
let host_exe = std::env::current_exe()
.ok()
.and_then(|p| p.parent().map(|d| d.join("punktfunk-host.exe")))
@@ -143,6 +164,7 @@ pub fn run(args: crate::Args) -> anyhow::Result<()> {
host_exe,
web_console: AtomicBool::new(false), // live-probed by the poller within its first cycle
web_port: args.web_port,
+ streaming_seen: AtomicU8::new(0),
})
.ok()
.expect("run() is called once");
@@ -247,14 +269,27 @@ fn update_icon(hwnd: HWND, add: bool) -> bool {
uCallbackMessage: WMAPP_NOTIFYCALLBACK,
..Default::default()
};
- // SAFETY: LoadIconW by ordinal from this exe's embedded resources (build.rs); the ordinal is
- // one of the ids compiled in, and a failure falls back to a null icon rather than UB.
+ // Ask for the shell's small-icon size at this DPI, so LoadImageW serves the best frame of the
+ // multi-size .ico instead of the 32 px default the shell then downscales (soft at 125 %+).
+ // SAFETY: plain metric query; 0 (failure) falls back to the classic 16 px.
+ let sm = match unsafe { GetSystemMetricsForDpi(SM_CXSMICON, win_theme::window_dpi(hwnd)) } {
+ 0 => 16,
+ n => n,
+ };
+ // SAFETY: LoadImageW by ordinal from this exe's embedded resources (build.rs); the ordinal is
+ // one of the ids compiled in, LR_SHARED handles are system-cached (never destroyed by us),
+ // and a failure falls back to a null icon rather than UB.
nid.hIcon = unsafe {
- LoadIconW(
+ LoadImageW(
Some(GetModuleHandleW(None).unwrap_or_default().into()),
PCWSTR(icon_ordinal(&status) as usize as *const u16),
+ IMAGE_ICON,
+ sm,
+ sm,
+ LR_SHARED,
)
}
+ .map(|h| HICON(h.0))
.unwrap_or(HICON(std::ptr::null_mut()));
// Tooltip: truncate to the szTip capacity (127 UTF-16 units + nul).
let tip = to_wide(&status.headline());
@@ -281,6 +316,77 @@ fn update_icon(hwnd: HWND, add: bool) -> bool {
}
}
+/// Toast when a client connects (the idle → streaming edge, as seen by the poller). Windows 11
+/// renders `NIF_INFO` balloons as native toasts under the app's name — no WinRT/AUMID
+/// registration needed for a plain exe. Fired from the UI thread on WMAPP_STATUS.
+fn notify_on_connect(hwnd: HWND) {
+ let status = app().status.lock().unwrap().clone();
+ let now: u8 = if status.is_streaming() { 2 } else { 1 };
+ // 0 = first status since launch: record only. A tray started mid-session (sign-in while a
+ // client already streams) must not fire a stale toast.
+ let was = app().streaming_seen.swap(now, Ordering::SeqCst);
+ if !(was == 1 && now == 2) {
+ return;
+ }
+ let (title, body) = match &status {
+ TrayStatus::Running(s) => (
+ // The host resolves the name from its trust store, else the device's own Hello name;
+ // absent (older host / nameless client) the toast stays generic.
+ match &s.client_name {
+ Some(name) => format!("{name} connected"),
+ None => "Client connected".to_string(),
+ },
+ match &s.session {
+ Some(sess) => format!(
+ "Streaming {}×{} @ {} fps",
+ sess.width, sess.height, sess.fps
+ ),
+ None => "A client is streaming from this host.".to_string(),
+ },
+ ),
+ _ => return, // is_streaming() implies Running; stay defensive
+ };
+ let mut nid = NOTIFYICONDATAW {
+ cbSize: std::mem::size_of::() as u32,
+ hWnd: hwnd,
+ uID: 1,
+ uFlags: NIF_INFO, // NIM_MODIFY touches only the balloon fields; icon/tip stay as-is
+ dwInfoFlags: NIIF_USER | NIIF_LARGE_ICON | NIIF_RESPECT_QUIET_TIME,
+ ..Default::default()
+ };
+ let title = to_wide(&title);
+ let n = title.len().min(nid.szInfoTitle.len() - 1);
+ nid.szInfoTitle[..n].copy_from_slice(&title[..n]);
+ let body = to_wide(&body);
+ let n = body.len().min(nid.szInfo.len() - 1);
+ nid.szInfo[..n].copy_from_slice(&body[..n]);
+ // SAFETY: plain metric query; 0 (failure) falls back to the classic 32 px.
+ let sm = match unsafe { GetSystemMetricsForDpi(SM_CXICON, win_theme::window_dpi(hwnd)) } {
+ 0 => 32,
+ n => n,
+ };
+ // The brand logo (ordinal 1, punktfunk.ico) at full toast size — the toast is Punktfunk
+ // speaking, not a status glyph. SAFETY: LoadImageW by ordinal from this exe's embedded
+ // resources; LR_SHARED handles are system-cached (never destroyed by us), and on failure the
+ // toast just shows no image.
+ nid.hBalloonIcon = unsafe {
+ LoadImageW(
+ Some(GetModuleHandleW(None).unwrap_or_default().into()),
+ PCWSTR(1usize as *const u16),
+ IMAGE_ICON,
+ sm,
+ sm,
+ LR_SHARED,
+ )
+ }
+ .map(|h| HICON(h.0))
+ .unwrap_or(HICON(std::ptr::null_mut()));
+ // SAFETY: nid fully initialized with a correct cbSize; NIM_MODIFY only reads it.
+ unsafe {
+ let _ = Shell_NotifyIconW(NIM_MODIFY, &nid);
+ }
+}
+
/// The right-click menu, rebuilt from the live status each time.
fn show_menu(hwnd: HWND) {
let status = app().status.lock().unwrap().clone();
@@ -296,7 +402,10 @@ fn show_menu(hwnd: HWND) {
// below (SetForegroundWindow before, WM_NULL after) per the Shell_NotifyIcon docs.
unsafe {
let Ok(menu) = CreatePopupMenu() else { return };
- let add = |id: usize, text: &str, grayed: bool| {
+ // Glyph bitmaps: the menu references but does not own them; the guard deletes them after
+ // DestroyMenu below.
+ let mut glyphs = win_theme::MenuGlyphs::new(hwnd);
+ let mut add = |id: usize, text: &str, grayed: bool, glyph: Option| {
let wide = to_wide(text);
let flags = if grayed {
MF_STRING | MF_GRAYED
@@ -304,41 +413,91 @@ fn show_menu(hwnd: HWND) {
MF_STRING
};
let _ = AppendMenuW(menu, flags, id, PCWSTR(wide.as_ptr()));
+ if let Some(g) = glyph {
+ glyphs.set(menu, id, g);
+ }
};
- add(IDM_HEADER, &status.headline(), true);
+ add(IDM_HEADER, &status.headline(), true, None);
let _ = AppendMenuW(menu, MF_SEPARATOR, 0, PCWSTR::null());
// The console entry is ALWAYS here — it is the reason most people open this menu, and
// left-clicking the icon is not a discoverable substitute. When the loopback probe says
// the console isn't answering the label says so, rather than the entry vanishing.
if app().web_console.load(Ordering::SeqCst) {
- add(IDM_OPEN_WEB, "Open web console", false);
+ add(
+ IDM_OPEN_WEB,
+ "Open web console",
+ false,
+ Some(win_theme::GLYPH_GLOBE),
+ );
} else {
- add(IDM_OPEN_WEB, "Open web console (not responding)", false);
+ add(
+ IDM_OPEN_WEB,
+ "Open web console (not responding)",
+ false,
+ Some(win_theme::GLYPH_GLOBE),
+ );
}
let _ = SetMenuDefaultItem(menu, IDM_OPEN_WEB as u32, 0);
if status.pairing_attention() {
- add(IDM_PAIRING, "Approve pairing request…", false);
+ add(
+ IDM_PAIRING,
+ "Approve pairing request…",
+ false,
+ Some(win_theme::GLYPH_APPROVE),
+ );
}
match status.kept_displays() {
0 => {}
- 1 => add(IDM_DISPLAYS, "Release kept display…", false),
- n => add(IDM_DISPLAYS, &format!("Release {n} kept displays…"), false),
+ 1 => add(
+ IDM_DISPLAYS,
+ "Release kept display…",
+ false,
+ Some(win_theme::GLYPH_DISPLAY),
+ ),
+ n => add(
+ IDM_DISPLAYS,
+ &format!("Release {n} kept displays…"),
+ false,
+ Some(win_theme::GLYPH_DISPLAY),
+ ),
}
let _ = AppendMenuW(menu, MF_SEPARATOR, 0, PCWSTR::null());
+ // The service actions all carry the shield: Explorer's convention for "selecting this
+ // opens a UAC prompt" (each runs `punktfunk-host.exe service …` elevated).
if can_control {
if startable {
- add(IDM_START, "Start host", false);
+ add(
+ IDM_START,
+ "Start host",
+ false,
+ Some(win_theme::GLYPH_SHIELD),
+ );
}
if running {
- add(IDM_STOP, "Stop host", false);
- add(IDM_RESTART, "Restart host", false);
+ add(IDM_STOP, "Stop host", false, Some(win_theme::GLYPH_SHIELD));
+ add(
+ IDM_RESTART,
+ "Restart host",
+ false,
+ Some(win_theme::GLYPH_SHIELD),
+ );
} else if matches!(status, TrayStatus::Error(_)) {
- add(IDM_RESTART, "Restart host", false);
+ add(
+ IDM_RESTART,
+ "Restart host",
+ false,
+ Some(win_theme::GLYPH_SHIELD),
+ );
}
}
- add(IDM_LOGS, "Open logs folder", false);
+ add(
+ IDM_LOGS,
+ "Open logs folder",
+ false,
+ Some(win_theme::GLYPH_FOLDER),
+ );
let _ = AppendMenuW(menu, MF_SEPARATOR, 0, PCWSTR::null());
- add(IDM_EXIT, "Exit tray", false);
+ add(IDM_EXIT, "Exit tray", false, Some(win_theme::GLYPH_POWER));
let mut pt = Default::default();
let _ = GetCursorPos(&mut pt);
@@ -425,8 +584,18 @@ extern "system" fn wndproc(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM)
match msg {
WMAPP_STATUS => {
update_icon(hwnd, false);
+ notify_on_connect(hwnd);
LRESULT(0)
}
+ WM_SETTINGCHANGE => {
+ // Light/dark flipped while running: drop the cached menu theme so the next popup
+ // renders in the new mode.
+ if win_theme::is_color_scheme_change(lparam) {
+ win_theme::on_color_scheme_changed();
+ }
+ // SAFETY: setting broadcasts still get default processing.
+ unsafe { DefWindowProcW(hwnd, msg, wparam, lparam) }
+ }
WMAPP_NOTIFYCALLBACK => {
// NOTIFYICON_VERSION_4: LOWORD(lParam) is the event.
match (lparam.0 as u32) & 0xffff {
diff --git a/crates/punktfunk-tray/src/win_theme.rs b/crates/punktfunk-tray/src/win_theme.rs
new file mode 100644
index 00000000..08a96b5d
--- /dev/null
+++ b/crates/punktfunk-tray/src/win_theme.rs
@@ -0,0 +1,354 @@
+//! Windows 11 fit-and-finish for the tray's Win32 UI.
+//!
+//! Three gaps make a stock Win32 tray read as "Windows 10 app" on Windows 11, and this module
+//! closes them without pulling a UI framework into a ~2 MB always-resident helper (there is no
+//! WinUI/App-SDK tray API — even fully modern apps register the icon via `Shell_NotifyIconW`;
+//! only the popup differs):
+//!
+//! * **Dark mode.** Popup menus never got a documented dark-mode opt-in; every app that ships
+//! one (Explorer, PowerToys, Notepad++) calls the same undocumented uxtheme ordinals —
+//! `SetPreferredAppMode` (135) and `FlushMenuThemes` (136), stable since Windows 10 1809.
+//! Every call here degrades to the classic light menu when an ordinal is missing.
+//! * **Glyphs.** Menu items get "Segoe Fluent Icons" glyphs ("Segoe MDL2 Assets" on Windows 10 —
+//! the codepoints are shared), rendered into premultiplied ARGB bitmaps that the themed menu
+//! composites correctly in both light and dark. Rounded corners come free — Windows 11 rounds
+//! every popup menu.
+//! * **DPI.** Sizing helpers for the PerMonitorV2 manifest build.rs embeds — an unmanifested exe
+//! is DPI-virtualized and its menu GDI-stretched (visibly blurry on any scaled display).
+
+use std::sync::OnceLock;
+
+use windows::core::{w, PCSTR, PCWSTR};
+use windows::Win32::Foundation::{COLORREF, HWND, LPARAM, RECT};
+use windows::Win32::Graphics::Gdi::{
+ CreateCompatibleDC, CreateDIBSection, CreateFontIndirectW, DeleteDC, DeleteObject, DrawTextW,
+ GdiFlush, GetTextFaceW, SelectObject, SetBkMode, SetTextColor, ANTIALIASED_QUALITY, BITMAPINFO,
+ BITMAPINFOHEADER, BI_RGB, DEFAULT_CHARSET, DIB_RGB_COLORS, DT_CENTER, DT_NOCLIP, DT_SINGLELINE,
+ DT_VCENTER, HBITMAP, HFONT, LOGFONTW, TRANSPARENT,
+};
+use windows::Win32::System::LibraryLoader::{
+ GetProcAddress, LoadLibraryExW, LOAD_LIBRARY_SEARCH_SYSTEM32,
+};
+use windows::Win32::System::Registry::{RegGetValueW, HKEY_CURRENT_USER, RRF_RT_REG_DWORD};
+use windows::Win32::UI::HiDpi::GetDpiForWindow;
+use windows::Win32::UI::WindowsAndMessaging::{
+ SetMenuItemInfoW, HMENU, MENUITEMINFOW, MIIM_BITMAP,
+};
+
+// Glyph codepoints, identical in Segoe Fluent Icons and Segoe MDL2 Assets.
+pub const GLYPH_GLOBE: u16 = 0xE774; // Globe — open web console
+pub const GLYPH_APPROVE: u16 = 0xE73E; // CheckMark — approve pairing
+pub const GLYPH_DISPLAY: u16 = 0xE7F4; // TVMonitor — kept displays
+pub const GLYPH_SHIELD: u16 = 0xE7EF; // Admin — marks the UAC-elevated service actions
+pub const GLYPH_FOLDER: u16 = 0xE8B7; // Folder — open logs
+pub const GLYPH_POWER: u16 = 0xE7E8; // PowerButton — exit tray
+
+type FnSetPreferredAppMode = unsafe extern "system" fn(mode: i32) -> i32;
+type FnVoid = unsafe extern "system" fn();
+
+/// The undocumented uxtheme dark-mode entry points, resolved once by ordinal. Any of them may be
+/// absent (pre-1809, or a future Windows that removes them) — each caller checks.
+struct UxTheme {
+ set_preferred_app_mode: Option,
+ refresh_immersive_colors: Option,
+ flush_menu_themes: Option,
+}
+
+static UXTHEME: OnceLock = OnceLock::new();
+
+fn uxtheme() -> &'static UxTheme {
+ UXTHEME.get_or_init(|| {
+ let none = UxTheme {
+ set_preferred_app_mode: None,
+ refresh_immersive_colors: None,
+ flush_menu_themes: None,
+ };
+ // SAFETY: system32-only load of a Windows-supplied DLL, then ordinal lookups that return
+ // None when absent. The transmutes assert the known signatures of ordinals 135/104/136
+ // (unchanged since 1809; on 1809 ordinal 135 is `AllowDarkModeForApp(bool)`, for which
+ // the later `SetPreferredAppMode(1)` call means the same "allow dark").
+ unsafe {
+ let Ok(lib) = LoadLibraryExW(w!("uxtheme.dll"), None, LOAD_LIBRARY_SEARCH_SYSTEM32)
+ else {
+ return none;
+ };
+ let ord = |n: u16| GetProcAddress(lib, PCSTR(n as usize as *const u8));
+ UxTheme {
+ set_preferred_app_mode: ord(135).map(|f| std::mem::transmute(f)),
+ refresh_immersive_colors: ord(104).map(|f| std::mem::transmute(f)),
+ flush_menu_themes: ord(136).map(|f| std::mem::transmute(f)),
+ }
+ }
+ })
+}
+
+/// Opt this process's menus into the system app theme ("allow dark", not "force dark" — the user
+/// setting decides). Call once before the first menu.
+pub fn init_dark_mode() {
+ let ux = uxtheme();
+ if let Some(set) = ux.set_preferred_app_mode {
+ // SAFETY: resolved above with this signature; 1 = AllowDark.
+ unsafe { set(1) };
+ }
+ if let Some(refresh) = ux.refresh_immersive_colors {
+ // SAFETY: resolved above; takes no arguments.
+ unsafe { refresh() };
+ }
+}
+
+/// The system theme flipped while we're running — re-read the immersive colors and drop the
+/// cached menu theme so the next popup renders in the new mode.
+pub fn on_color_scheme_changed() {
+ let ux = uxtheme();
+ if let Some(refresh) = ux.refresh_immersive_colors {
+ // SAFETY: resolved in uxtheme() with this signature.
+ unsafe { refresh() };
+ }
+ if let Some(flush) = ux.flush_menu_themes {
+ // SAFETY: resolved in uxtheme() with this signature.
+ unsafe { flush() };
+ }
+}
+
+/// Is this WM_SETTINGCHANGE the "ImmersiveColorSet" broadcast (light/dark toggled)?
+pub fn is_color_scheme_change(lparam: LPARAM) -> bool {
+ const NAME: &[u16] = &[
+ b'I' as u16,
+ b'm' as u16,
+ b'm' as u16,
+ b'e' as u16,
+ b'r' as u16,
+ b's' as u16,
+ b'i' as u16,
+ b'v' as u16,
+ b'e' as u16,
+ b'C' as u16,
+ b'o' as u16,
+ b'l' as u16,
+ b'o' as u16,
+ b'r' as u16,
+ b'S' as u16,
+ b'e' as u16,
+ b't' as u16,
+ ];
+ let p = lparam.0 as *const u16;
+ if p.is_null() {
+ return false;
+ }
+ // SAFETY: WM_SETTINGCHANGE documents lParam as a nul-terminated string (or null, handled
+ // above); the read is bounded to the compared length + terminator.
+ unsafe {
+ for (i, &want) in NAME.iter().enumerate() {
+ if *p.add(i) != want {
+ return false;
+ }
+ }
+ *p.add(NAME.len()) == 0
+ }
+}
+
+/// Apps dark theme active? (`AppsUseLightTheme` = 0). Menus under "allow dark" follow this same
+/// value, so glyph colors chosen from it always match the menu background.
+pub fn apps_use_dark() -> bool {
+ let mut data: u32 = 1;
+ let mut size = std::mem::size_of::() as u32;
+ // SAFETY: RegGetValueW writes at most `size` bytes into `data`; missing value is an error we
+ // treat as light (the OS default).
+ let r = unsafe {
+ RegGetValueW(
+ HKEY_CURRENT_USER,
+ w!(r"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize"),
+ w!("AppsUseLightTheme"),
+ RRF_RT_REG_DWORD,
+ None,
+ Some(&mut data as *mut u32 as *mut _),
+ Some(&mut size),
+ )
+ };
+ r.is_ok() && data == 0
+}
+
+/// The window's monitor DPI (96 fallback for an invalid handle).
+pub fn window_dpi(hwnd: HWND) -> u32 {
+ // SAFETY: valid on any window handle; returns 0 only for an invalid one.
+ match unsafe { GetDpiForWindow(hwnd) } {
+ 0 => 96,
+ d => d,
+ }
+}
+
+/// Per-popup glyph bitmaps: rendered at the menu's DPI in the current theme's text color,
+/// attached via `hbmpItem`, and deleted on drop — `DestroyMenu` does not free item bitmaps.
+pub struct MenuGlyphs {
+ size: i32,
+ color: u32, // 0x00RRGGBB
+ face: Option,
+ bitmaps: Vec,
+}
+
+impl MenuGlyphs {
+ pub fn new(hwnd: HWND) -> Self {
+ let dpi = window_dpi(hwnd) as i32;
+ MenuGlyphs {
+ size: (16 * dpi + 48) / 96,
+ // Match the themed menu's text: near-white on dark, near-black on light.
+ color: if apps_use_dark() {
+ 0x00EBEBEB
+ } else {
+ 0x00202020
+ },
+ face: resolve_icon_font(),
+ bitmaps: Vec::new(),
+ }
+ }
+
+ /// Render `glyph` and attach it to menu item `id`. Silently a no-op when the icon font is
+ /// missing or GDI fails — the menu is fully usable without bitmaps.
+ pub fn set(&mut self, menu: HMENU, id: usize, glyph: u16) {
+ let Some(face) = self.face else { return };
+ let Some(bmp) = glyph_bitmap(face, glyph, self.size, self.color) else {
+ return;
+ };
+ let mii = MENUITEMINFOW {
+ cbSize: std::mem::size_of::() as u32,
+ fMask: MIIM_BITMAP,
+ hbmpItem: bmp,
+ ..Default::default()
+ };
+ // SAFETY: mii is fully initialized with a correct cbSize; menu/id belong to the caller.
+ if unsafe { SetMenuItemInfoW(menu, id as u32, false, &mii) }.is_ok() {
+ self.bitmaps.push(bmp);
+ } else {
+ // SAFETY: created above, attached nowhere.
+ unsafe {
+ let _ = DeleteObject(bmp.into());
+ }
+ }
+ }
+}
+
+impl Drop for MenuGlyphs {
+ fn drop(&mut self) {
+ for bmp in self.bitmaps.drain(..) {
+ // SAFETY: bitmaps created by glyph_bitmap; the menu that referenced them is destroyed
+ // before the guard goes out of scope in show_menu.
+ unsafe {
+ let _ = DeleteObject(bmp.into());
+ }
+ }
+ }
+}
+
+/// The installed system icon font: Fluent (Windows 11) → MDL2 (Windows 10) → None (skip glyphs).
+fn resolve_icon_font() -> Option {
+ [w!("Segoe Fluent Icons"), w!("Segoe MDL2 Assets")]
+ .into_iter()
+ .find(|f| font_exists(*f))
+}
+
+/// GDI never fails font creation — it substitutes. Detect a missing face by asking the DC what
+/// it actually selected.
+fn font_exists(face: PCWSTR) -> bool {
+ // SAFETY: local DC/font pair created and freed here; GetTextFaceW writes a bounded,
+ // nul-terminated name into buf.
+ unsafe {
+ let dc = CreateCompatibleDC(None);
+ if dc.is_invalid() {
+ return false;
+ }
+ let font = create_font(face, 16);
+ let old = SelectObject(dc, font.into());
+ let mut buf = [0u16; 64];
+ let n = GetTextFaceW(dc, Some(&mut buf)) as usize;
+ SelectObject(dc, old);
+ let _ = DeleteObject(font.into());
+ let _ = DeleteDC(dc);
+ let got = &buf[..n.min(buf.len())];
+ let got = got.strip_suffix(&[0]).unwrap_or(got);
+ n > 0 && got == face.as_wide()
+ }
+}
+
+fn create_font(face: PCWSTR, height: i32) -> HFONT {
+ let mut lf = LOGFONTW {
+ lfHeight: -height, // negative = character height; MDL2/Fluent glyphs fill the em square
+ lfWeight: 400,
+ lfCharSet: DEFAULT_CHARSET,
+ // Grayscale AA, not ClearType — the alpha pass below reads coverage from one channel and
+ // subpixel rendering would leave color fringes.
+ lfQuality: ANTIALIASED_QUALITY,
+ ..Default::default()
+ };
+ // SAFETY: both candidate face literals fit LF_FACESIZE (32) incl. nul; CreateFontIndirectW
+ // copies the struct.
+ unsafe {
+ let name = face.as_wide();
+ lf.lfFaceName[..name.len()].copy_from_slice(name);
+ CreateFontIndirectW(&lf)
+ }
+}
+
+/// Render one glyph, white-on-black, into a 32-bit top-down DIB, then convert coverage to a
+/// premultiplied-alpha bitmap in `color` — the format themed menus composite without artifacts.
+fn glyph_bitmap(face: PCWSTR, glyph: u16, size: i32, color: u32) -> Option {
+ // SAFETY: standard GDI render-to-memory-DIB. Every handle created here is released here (the
+ // returned bitmap by MenuGlyphs::drop), GdiFlush completes pending GDI writes before the bits
+ // are read, and the pixel loop stays inside the size*size allocation CreateDIBSection made.
+ unsafe {
+ let dc = CreateCompatibleDC(None);
+ if dc.is_invalid() {
+ return None;
+ }
+ let bi = BITMAPINFO {
+ bmiHeader: BITMAPINFOHEADER {
+ biSize: std::mem::size_of::() as u32,
+ biWidth: size,
+ biHeight: -size, // top-down
+ biPlanes: 1,
+ biBitCount: 32,
+ biCompression: BI_RGB.0,
+ ..Default::default()
+ },
+ ..Default::default()
+ };
+ let mut bits: *mut core::ffi::c_void = std::ptr::null_mut();
+ let Ok(bmp) = CreateDIBSection(Some(dc), &bi, DIB_RGB_COLORS, &mut bits, None, 0) else {
+ let _ = DeleteDC(dc);
+ return None;
+ };
+ let font = create_font(face, size);
+ let old_bmp = SelectObject(dc, bmp.into());
+ let old_font = SelectObject(dc, font.into());
+
+ std::ptr::write_bytes(bits as *mut u8, 0, (size * size * 4) as usize);
+ SetTextColor(dc, COLORREF(0x00FF_FFFF));
+ SetBkMode(dc, TRANSPARENT);
+ let mut text = [glyph];
+ let mut rect = RECT {
+ left: 0,
+ top: 0,
+ right: size,
+ bottom: size,
+ };
+ DrawTextW(
+ dc,
+ &mut text,
+ &mut rect,
+ DT_CENTER | DT_VCENTER | DT_SINGLELINE | DT_NOCLIP,
+ );
+ let _ = GdiFlush();
+
+ let px = bits as *mut u32;
+ let (r, g, b) = ((color >> 16) & 0xFF, (color >> 8) & 0xFF, color & 0xFF);
+ for i in 0..(size * size) as usize {
+ let a = *px.add(i) & 0xFF; // white-on-black: any channel is the coverage
+ *px.add(i) = (a << 24) | ((r * a / 255) << 16) | ((g * a / 255) << 8) | (b * a / 255);
+ }
+
+ SelectObject(dc, old_font);
+ SelectObject(dc, old_bmp);
+ let _ = DeleteObject(font.into());
+ let _ = DeleteDC(dc);
+ Some(bmp)
+ }
+}
diff --git a/packaging/windows/punktfunk-host.iss b/packaging/windows/punktfunk-host.iss
index cdd72fc7..b021e3bc 100644
--- a/packaging/windows/punktfunk-host.iss
+++ b/packaging/windows/punktfunk-host.iss
@@ -252,6 +252,16 @@ Source: "{#VkLayerDir}\pf_vkhdr_layer.json"; DestDir: "{app}\vklayer"; Flags: ig
; with the app). Operators who moved --mgmt-bind can append --mgmt-addr/--mgmt-port here.
Root: HKLM64; Subkey: "SOFTWARE\Microsoft\Windows\CurrentVersion\Run"; ValueType: string; \
ValueName: "PunktfunkTray"; ValueData: """{app}\punktfunk-tray.exe"""; Flags: uninsdeletevalue; Tasks: trayicon
+; Toast identity for the tray's notifications ("client connected"). The tray process tags itself
+; with this AppUserModelID (win.rs TRAY_AUMID — keep in sync), and this registration is what makes
+; Windows 11 attribute its toasts as "Punktfunk" with the brand icon instead of a generic entry —
+; the same Classes\AppUserModelId mechanism the Windows App SDK uses for unpackaged apps. No Start
+; menu shortcut needed. Installed unconditionally (like the tray exe itself): the keys are inert
+; without the tray running.
+Root: HKLM64; Subkey: "SOFTWARE\Classes\AppUserModelId\unom.punktfunk.tray"; ValueType: string; \
+ ValueName: "DisplayName"; ValueData: "Punktfunk"; Flags: uninsdeletekey
+Root: HKLM64; Subkey: "SOFTWARE\Classes\AppUserModelId\unom.punktfunk.tray"; ValueType: string; \
+ ValueName: "IconUri"; ValueData: "{app}\punktfunk.ico"
; Put {app} on the MACHINE PATH so `punktfunk-host plugins add …` / `punktfunk-host service …` are
; runnable by name. Appended to the existing value ({olddata}) and guarded by PathNeedsAdd so a
; repair/upgrade never appends a duplicate. Deliberately NOT `uninsdeletevalue` — that would delete