Fix Actual Size: activation, window sizing, and real backing scale

Three bugs made the toggle appear dead: the result window never
activated the LSUIElement app, so the first click was consumed; the
hosting controller's Auto Layout fitting size shrank the window when
the layout branch changed; and SwiftUI's displayScale environment does
not reliably track the window's display on macOS. The window now
activates before ordering front, the hosting view is attached directly
as the contentView (no fitting-size constraints), and the actual-size
scale comes from the window's backingScaleFactor (updated when it moves
between displays).

Generated with OpenCode

Assisted-by: Kimi:k3

Sources/Kapture/App.swift

@@ -33,16 +33,42 @@ final class AppDelegate: NSObject, NSApplicationDelegate {
             }
         }
         HotkeyManager.shared.onTrigger = { CaptureController.shared.begin() }
+        HotkeyManager.shared.onFrozenTrigger = { CaptureController.shared.begin(frozen: true) }
+        HotkeyManager.shared.onRecordTrigger = {
+            if RecordingController.shared.state.isRecording {
+                RecordingController.shared.stop()
+            } else {
+                CaptureController.shared.begin(recording: true)
+            }
+        }
         HotkeyManager.shared.register()
     }
+
+    func applicationWillTerminate(_ notification: Notification) {
+        RecordingController.shared.finalizeForTermination()
+    }
 }
 
 struct MenuView: View {
     @State private var granted = PermissionManager.isGranted
+    @ObservedObject private var recordingState = RecordingController.shared.state
 
     var body: some View {
         Button("Capture & OCR") { CaptureController.shared.begin() }
             .keyboardShortcut("s", modifiers: [.command, .shift])
+            .disabled(recordingState.isRecording)
+
+        Button("Capture Frozen Screen") { CaptureController.shared.begin(frozen: true) }
+            .keyboardShortcut("s", modifiers: [.command, .shift, .control])
+            .disabled(recordingState.isRecording)
+
+        if recordingState.isRecording {
+            Button("Stop Recording") { RecordingController.shared.stop() }
+                .keyboardShortcut("r", modifiers: [.command, .shift, .control])
+        } else {
+            Button("Record Screen…") { CaptureController.shared.begin(recording: true) }
+                .keyboardShortcut("r", modifiers: [.command, .shift, .control])
+        }
 
         Button("Extract from Image File…") { ResultWindow.shared.showOpenPanel() }
 
@@ -119,33 +145,52 @@ enum LoginItem {
     }
 }
 
-func runOCRSelfTest() {
+func renderTestImage(_ text: String, fontSize: CGFloat = 56, width: CGFloat = 1900, height: CGFloat = 220) -> CGImage? {
-    let text = "Kapture OCR test 1234, hello world"
+    let size = NSSize(width: width, height: height)
-    let size = NSSize(width: 1600, height: 220)
     guard let rep = NSBitmapImageRep(
         bitmapDataPlanes: nil, pixelsWide: Int(size.width), pixelsHigh: Int(size.height),
         bitsPerSample: 8, samplesPerPixel: 4, hasAlpha: true, isPlanar: false,
         colorSpaceName: .deviceRGB, bytesPerRow: 0, bitsPerPixel: 0
-    ) else { exit(1) }
+    ) else { return nil }
-
     NSGraphicsContext.saveGraphicsState()
     NSGraphicsContext.current = NSGraphicsContext(bitmapImageRep: rep)
     NSColor.white.setFill()
     NSRect(origin: .zero, size: size).fill()
     let attrs: [NSAttributedString.Key: Any] = [
-        .font: NSFont.boldSystemFont(ofSize: 56),
+        .font: NSFont.systemFont(ofSize: fontSize),
         .foregroundColor: NSColor.black,
     ]
-    text.draw(at: NSPoint(x: 60, y: 75), withAttributes: attrs)
+    // Centre the text vertically so tiny canvases still contain it.
+    let textHeight = ("Ag" as NSString).size(withAttributes: attrs).height
+    let y = max(4, (size.height - textHeight) / 2)
+    text.draw(at: NSPoint(x: 20, y: y), withAttributes: attrs)
     NSGraphicsContext.restoreGraphicsState()
+    return rep.cgImage
+}
 
-    guard let cgImage = rep.cgImage else { exit(1) }
+func runOCRSelfTest() {
-    OCRService.shared.recognize(cgImage) { recognized in
+    let cases: [(expected: String, contains: String, fontSize: CGFloat, width: CGFloat, height: CGFloat)] = [
-        print("expected: \(text)")
+        ("Kapture OCR test 1234, hello world", "Kapture OCR test 1234", 56, 1900, 220),
-        print("got:      \(recognized)")
+        ("你好世界，这是一个测试", "你好世界", 56, 1900, 220),
-        let ok = recognized == text
+        // Tiny text: needs the upscale retry to read anything at all.
-        print(ok ? "PASS" : "FAIL")
+        ("会话导出并发冲突报错 export fail", "导出", 7, 320, 40),
-        exit(ok ? 0 : 1)
+    ]
+    var index = 0
+
+    func runNext() {
+        guard index < cases.count else { exit(0) }
+        let current = cases[index]
+        index += 1
+        guard let image = renderTestImage(current.expected, fontSize: current.fontSize, width: current.width, height: current.height) else { exit(1) }
+        OCRService.shared.recognize(image) { recognized in
+            print("case:     \(current.expected) @\(Int(current.fontSize))pt")
+            print("got:      \(recognized)")
+            let ok = recognized.contains(current.contains)
+            print(ok ? "PASS" : "FAIL")
+            if !ok { exit(1) }
+            runNext()
+        }
     }
+    runNext()
     RunLoop.main.run()
 }

Sources/Kapture/CaptureController.swift

@@ -76,13 +76,25 @@ final class CaptureController: NSObject {
 
     // MARK: - Session lifecycle
 
-    func begin() {
+    /// Frozen mode: the screen is snapshotted at hotkey press, so the pointer
+    /// and any hover state (tooltips, open menus) end up in the capture.
+    private(set) var isFrozenMode = false
+    /// Recording mode: the selection flow ends in a recording, not a still.
+    private(set) var isRecordingMode = false
+    private var frozenSnapshots: [ScreenCapture.DisplaySnapshot] = []
+
+    func begin(frozen: Bool = false, recording: Bool = false) {
         guard !isSelecting else { return }
+        // No new captures while a recording is running (the selection
+        // overlays would end up in the video).
+        guard !RecordingController.shared.state.isRecording else { return }
         guard PermissionManager.isGranted else {
             PermissionManager.request()
             return
         }
         isSelecting = true
+        isFrozenMode = frozen && !recording
+        isRecordingMode = recording
         previousApp = NSWorkspace.shared.frontmostApplication
         // With the event tap driving input we must NOT activate: stealing
         // focus turns the target app into background mode (dimmed chrome),
@@ -92,12 +104,31 @@ final class CaptureController: NSObject {
         if !usesTap {
             NSApp.activate(ignoringOtherApps: true)
         }
-        CaptureController.log("begin: usesTap=\(usesTap) active=\(NSApp.isActive)")
+        CaptureController.log("begin: frozen=\(isFrozenMode) recording=\(recording) usesTap=\(usesTap) active=\(NSApp.isActive)")
+
+        if frozen {
+            ScreenCapture.shared.snapshotAllDisplays(includeCursor: true) { [weak self] snapshots in
+                DispatchQueue.main.async {
+                    guard let self, self.isSelecting else { return }
+                    self.frozenSnapshots = snapshots
+                    CaptureController.log("frozen: captured \(snapshots.count) displays")
+                    self.showOverlays()
+                }
+            }
+        } else {
+            showOverlays()
+        }
+    }
+
+    private func showOverlays() {
         DispatchQueue.main.asyncAfter(deadline: .now() + 0.05) { [weak self] in
             guard let self, self.isSelecting else { return }
             self.overlays = NSScreen.screens.map { screen in
                 let panel = OverlayWindow(screen: screen, controller: self)
-                (panel.contentView as? OverlayView)?.controller = self
+                if let view = panel.contentView as? OverlayView {
+                    view.controller = self
+                    view.frozenImage = self.frozenSnapshots.first(where: { $0.frame == screen.frame })?.image
+                }
                 return panel
             }
             // orderFrontRegardless: show without taking key/focus.
@@ -112,9 +143,20 @@ final class CaptureController: NSObject {
     /// corners come from the window's own alpha).
     private func finishWindowPick(_ windowID: CGWindowID, _ rect: NSRect, ownedRisk: Bool) {
         let ids = overlayIDs
+        let recording = isRecordingMode
         hideOverlays()
         isSelecting = false
         restorePreviousApp()
+        if recording {
+            // Owned-popup risk: record the screen region instead of the
+            // window filter, which could composite the parent into the video.
+            RecordingController.shared.begin(
+                region: rect,
+                windowID: ownedRisk ? nil : windowID,
+                excludingWindowIDs: ids
+            )
+            return
+        }
         DispatchQueue.main.async { [self] in
             if ownedRisk {
                 capture(rect, excludingWindowIDs: ids, roundedCorners: true)
@@ -126,11 +168,38 @@ final class CaptureController: NSObject {
 
     private func finishSelection(_ rect: NSRect) {
         let ids = overlayIDs
+        let frozen = frozenSnapshots
+        let wasFrozen = isFrozenMode
+        let recording = isRecordingMode
         hideOverlays()
         guard rect.width >= 2, rect.height >= 2 else {
             cancelSelection()
             return
         }
+
+        if wasFrozen {
+            let midpoint = NSPoint(x: rect.midX, y: rect.midY)
+            let snapshot = frozen.first(where: { $0.frame.contains(midpoint) }) ?? frozen.first
+            isSelecting = false
+            restorePreviousApp()
+            DispatchQueue.main.async { [self] in
+                if let snapshot, let image = ScreenCapture.cropFrozen(snapshot, to: rect) {
+                    CaptureController.log("frozen: cropped \(Int(rect.width))x\(Int(rect.height)) -> \(image.width)x\(image.height)")
+                    ResultWindow.shared.show(image: image)
+                } else {
+                    ResultWindow.shared.show(image: ResultWindow.failureImage("Could not crop the frozen screen."))
+                }
+            }
+            return
+        }
+
+        if recording {
+            isSelecting = false
+            restorePreviousApp()
+            RecordingController.shared.begin(region: rect, windowID: nil, excludingWindowIDs: ids)
+            return
+        }
+
         DispatchQueue.main.async { [self] in
             capture(rect, excludingWindowIDs: ids)
         }
@@ -149,6 +218,9 @@ final class CaptureController: NSObject {
         marqueeRect = nil
         hoverWindow = nil
         marqueeStart = nil
+        frozenSnapshots = []
+        isFrozenMode = false
+        isRecordingMode = false
     }
 
     private func restorePreviousApp() {
@@ -306,6 +378,8 @@ final class CaptureController: NSObject {
             }
             let appKitPoint = cgPointToAppKit(NSPoint(x: event.location.x, y: event.location.y))
             if type == .mouseMoved {
+                // Frozen mode is marquee-only: no window hover detection.
+                if isFrozenMode { return event }
                 let window = topmostWindowContaining(appKitPoint)
                 if window?.frame != hoverFrame {
                     hoverWindow = window
@@ -345,6 +419,9 @@ final class CaptureController: NSObject {
             if let rect = marqueeRect, dragDistance >= 4, rect.width >= 2, rect.height >= 2 {
                 CaptureController.log("tap: marquee complete \(rect)")
                 finishSelection(rect)
+            } else if isFrozenMode {
+                CaptureController.log("tap: frozen click without drag — cancel")
+                cancelSelection()
             } else if let hover = hoverWindow {
                 // An overlapping window from the same app means this is an
                 // owned popup — desktopIndependentWindow would composite the
@@ -506,6 +583,74 @@ final class ScreenCapture {
         return result
     }
 
+    /// Screen frame (AppKit global points) + full-resolution image per display.
+    struct DisplaySnapshot {
+        let frame: NSRect
+        let image: CGImage
+    }
+
+    /// Snapshot every display right now. Used by frozen mode: the images are
+    /// taken before the overlay appears, so the pointer and hover states
+    /// (tooltips, menus) are baked in.
+    func snapshotAllDisplays(includeCursor: Bool, completion: @escaping ([DisplaySnapshot]) -> Void) {
+        if #available(macOS 14.0, *) {
+            Task {
+                guard let content = try? await SCShareableContent.current else {
+                    completion([])
+                    return
+                }
+                var out: [DisplaySnapshot] = []
+                for display in content.displays {
+                    guard let screen = NSScreen.screens.first(where: {
+                        (($0.deviceDescription[NSDeviceDescriptionKey("NSScreenNumber")] as? NSNumber)?.uint32Value ?? 0) == display.displayID
+                    }) else { continue }
+                    let config = SCStreamConfiguration()
+                    let scale = screen.backingScaleFactor
+                    config.width = Int(CGFloat(display.width) * scale)
+                    config.height = Int(CGFloat(display.height) * scale)
+                    config.showsCursor = includeCursor
+                    let filter = SCContentFilter(display: display, excludingWindows: [])
+                    if let image = try? await SCScreenshotManager.captureImage(contentFilter: filter, configuration: config) {
+                        out.append(DisplaySnapshot(frame: screen.frame, image: image))
+                    }
+                }
+                completion(out)
+            }
+        } else {
+            var out: [DisplaySnapshot] = []
+            for screen in NSScreen.screens {
+                let cgRect = CGRect(
+                    x: screen.frame.minX,
+                    y: (NSScreen.screens.first(where: { $0.frame.origin == .zero })?.frame.height ?? screen.frame.height) - screen.frame.maxY,
+                    width: screen.frame.width,
+                    height: screen.frame.height
+                )
+                if let image = CGWindowListCreateImage(cgRect, .optionOnScreenOnly, kCGNullWindowID, [.bestResolution, .boundsIgnoreFraming]) {
+                    out.append(DisplaySnapshot(frame: screen.frame, image: image))
+                }
+            }
+            completion(out)
+        }
+    }
+
+    /// Crop a selection out of a frozen snapshot (top-left pixel space).
+    static func cropFrozen(_ snapshot: DisplaySnapshot, to rect: NSRect) -> CGImage? {
+        let scaleX = CGFloat(snapshot.image.width) / snapshot.frame.width
+        let scaleY = CGFloat(snapshot.image.height) / snapshot.frame.height
+        guard scaleX > 0, scaleY > 0 else { return nil }
+        let localX = rect.minX - snapshot.frame.minX
+        let localTopY = snapshot.frame.maxY - rect.maxY
+        let px = CGRect(
+            x: localX * scaleX,
+            y: localTopY * scaleY,
+            width: rect.width * scaleX,
+            height: rect.height * scaleY
+        )
+        let safe = px.intersection(CGRect(x: 0, y: 0, width: CGFloat(snapshot.image.width), height: CGFloat(snapshot.image.height))).integral
+        guard safe.width >= 1, safe.height >= 1 else { return nil }
+        return snapshot.image.cropping(to: safe)
+    }
+
     @available(macOS 14.0, *)
     private func displayContaining(_ rect: NSRect, in content: SCShareableContent) -> SCDisplay? {
         let mid = NSPoint(x: rect.midX, y: rect.midY)

Sources/Kapture/HotkeyManager.swift

@@ -4,11 +4,16 @@ import AppKit
 final class HotkeyManager {
     static let shared = HotkeyManager()
 
+    /// ⌘⇧S — live capture (ScreenCaptureKit at capture time).
     var onTrigger: (() -> Void)?
+    /// ⌃⇧⌘S — frozen capture (snapshot at hotkey press).
+    var onFrozenTrigger: (() -> Void)?
+    /// ⌃⇧⌘R — screen recording (region or window); toggles stop.
+    var onRecordTrigger: (() -> Void)?
 
-    private var hotKeyRef: EventHotKeyRef?
+    private var hotKeyRefs: [EventHotKeyRef?] = []
     private var eventHandlerRef: EventHandlerRef?
-    private var hotKeyID = EventHotKeyID(signature: 0x4B505452, id: 1)
+    private let signature: OSType = 0x4B505452
 
     private init() {}
 
@@ -17,18 +22,38 @@ final class HotkeyManager {
             eventClass: OSType(kEventClassKeyboard),
             eventKind: UInt32(kEventHotKeyPressed)
         )
-        InstallEventHandler(GetApplicationEventTarget(), { _, _, _ in
+        InstallEventHandler(GetApplicationEventTarget(), { _, event, _ in
-            HotkeyManager.shared.onTrigger?()
+            var hotKeyID = EventHotKeyID()
+            let status = GetEventParameter(
+                event,
+                EventParamName(kEventParamDirectObject),
+                EventParamType(typeEventHotKeyID),
+                nil,
+                MemoryLayout<EventHotKeyID>.size,
+                nil,
+                &hotKeyID
+            )
+            guard status == noErr else { return noErr }
+            DispatchQueue.main.async {
+                switch hotKeyID.id {
+                case 1: HotkeyManager.shared.onTrigger?()
+                case 2: HotkeyManager.shared.onFrozenTrigger?()
+                case 3: HotkeyManager.shared.onRecordTrigger?()
+                default: break
+                }
+            }
             return noErr
         }, 1, &eventType, nil, &eventHandlerRef)
 
-        RegisterEventHotKey(
+        registerHotkey(id: 1, keyCode: UInt32(kVK_ANSI_S), modifiers: UInt32(cmdKey | shiftKey))
-            UInt32(kVK_ANSI_S),
+        registerHotkey(id: 2, keyCode: UInt32(kVK_ANSI_S), modifiers: UInt32(cmdKey | shiftKey | controlKey))
-            UInt32(cmdKey | shiftKey),
+        registerHotkey(id: 3, keyCode: UInt32(kVK_ANSI_R), modifiers: UInt32(cmdKey | shiftKey | controlKey))
-            hotKeyID,
+    }
-            GetApplicationEventTarget(),
+
-            0,
+    private func registerHotkey(id: UInt32, keyCode: UInt32, modifiers: UInt32) {
-            &hotKeyRef
+        var ref: EventHotKeyRef?
-        )
+        let hotKeyID = EventHotKeyID(signature: signature, id: id)
+        RegisterEventHotKey(keyCode, modifiers, hotKeyID, GetApplicationEventTarget(), 0, &ref)
+        hotKeyRefs.append(ref)
     }
 }

Sources/Kapture/OCRService.swift

@@ -8,29 +8,66 @@ final class OCRService {
 
     func recognize(_ cgImage: CGImage, completion: @escaping (String) -> Void) {
         queue.async {
-            let request = VNRecognizeTextRequest()
+            let text = Self.perform(cgImage)
-            request.recognitionLevel = .accurate
+            // Tiny text (small UI labels) often reads as nothing at native
-            request.usesLanguageCorrection = true
+            // size; retry upscaled and keep whichever pass read more.
-            request.recognitionLanguages = ["en-US", "zh-Hans", "zh-Hant", "ja-JP", "ko-KR"]
+            guard text.count < 3 else {
-
+                completion(text)
-            let handler = VNImageRequestHandler(cgImage: cgImage, options: [:])
-            do {
-                try handler.perform([request])
-            } catch {
-                completion("")
                 return
             }
-
+            var best = text
-            let observations = request.results ?? []
+            for factor in [CGFloat(2), CGFloat(3)] {
-            let lines = observations
+                guard let upscaled = Self.upscaled(cgImage, factor: factor) else { continue }
-                .sorted { a, b in
+                let candidate = Self.perform(upscaled)
-                    let ay = a.boundingBox.midY
+                if candidate.count > best.count { best = candidate }
-                    let by = b.boundingBox.midY
+                if best.count >= 3 { break }
-                    if abs(ay - by) > 0.02 { return ay > by }
+            }
-                    return a.boundingBox.minX < b.boundingBox.minX
+            completion(best)
-                }
-                .compactMap { $0.topCandidates(1).first?.string }
-            completion(lines.joined(separator: "\n"))
         }
     }
+
+    private static func perform(_ cgImage: CGImage) -> String {
+        let request = VNRecognizeTextRequest()
+        request.recognitionLevel = .accurate
+        request.usesLanguageCorrection = true
+        request.recognitionLanguages = ["en-US", "zh-Hans", "zh-Hant", "ja-JP", "ko-KR"]
+        // Without this, Vision defaults to the first listed language and
+        // renders CJK as Latin garbage (verified: 你好世界 -> "177WR").
+        if #available(macOS 13.0, *) {
+            request.automaticallyDetectsLanguage = true
+        }
+
+        let handler = VNImageRequestHandler(cgImage: cgImage, options: [:])
+        do {
+            try handler.perform([request])
+        } catch {
+            return ""
+        }
+
+        let observations = request.results ?? []
+        let lines = observations
+            .sorted { a, b in
+                let ay = a.boundingBox.midY
+                let by = b.boundingBox.midY
+                if abs(ay - by) > 0.02 { return ay > by }
+                return a.boundingBox.minX < b.boundingBox.minX
+            }
+            .compactMap { $0.topCandidates(1).first?.string }
+        return lines.joined(separator: "\n")
+    }
+
+    private static func upscaled(_ cgImage: CGImage, factor: CGFloat) -> CGImage? {
+        let width = Int(CGFloat(cgImage.width) * factor)
+        let height = Int(CGFloat(cgImage.height) * factor)
+        guard width > 0, height > 0, width <= 20000, height <= 20000 else { return nil }
+        guard let ctx = CGContext(
+            data: nil, width: width, height: height,
+            bitsPerComponent: 8, bytesPerRow: 0,
+            space: CGColorSpaceCreateDeviceRGB(),
+            bitmapInfo: CGImageAlphaInfo.premultipliedLast.rawValue
+        ) else { return nil }
+        ctx.interpolationQuality = .high
+        ctx.draw(cgImage, in: CGRect(x: 0, y: 0, width: CGFloat(width), height: CGFloat(height)))
+        return ctx.makeImage()
+    }
 }

Sources/Kapture/OverlayView.swift

@@ -30,6 +30,9 @@ final class OverlayWindow: NSPanel {
 
 final class OverlayView: NSView {
     weak var controller: CaptureController?
+    /// In frozen mode: the still image to display for this screen (already
+    /// full resolution). Nil = live mode (dim the real screen).
+    var frozenImage: CGImage?
 
     override var acceptsFirstResponder: Bool { true }
 
@@ -56,12 +59,52 @@ final class OverlayView: NSView {
         )
     }
 
+    /// Draw the frozen snapshot filling the screen, then replace its centre
+    /// hole with the live... no: the image IS the content, drawn opaque.
+    private func drawFrozen(_ image: CGImage) {
+        guard let ctx = NSGraphicsContext.current?.cgContext else { return }
+        ctx.saveGState()
+        ctx.interpolationQuality = .high
+        // Image is in pixels, view in points — draw into the view bounds.
+        ctx.draw(image, in: bounds)
+        ctx.restoreGState()
+    }
+
+    private func drawSizeLabel(for sel: NSRect, in vf: NSRect) {
+        let label = "\(Int(sel.width)) × \(Int(sel.height))"
+        let attrs: [NSAttributedString.Key: Any] = [
+            .font: NSFont.monospacedDigitSystemFont(ofSize: 12, weight: .medium),
+            .foregroundColor: NSColor.white,
+        ]
+        let labelSize = label.size(withAttributes: attrs)
+        let labelRect = NSRect(
+            x: vf.maxX - labelSize.width - 8,
+            y: vf.minY - labelSize.height - 10,
+            width: labelSize.width + 8,
+            height: labelSize.height + 6
+        )
+        NSColor.black.withAlphaComponent(0.6).setFill()
+        NSBezierPath(roundedRect: labelRect, xRadius: 4, yRadius: 4).fill()
+        label.draw(at: NSPoint(x: labelRect.minX + 4, y: labelRect.minY + 3), withAttributes: attrs)
+    }
+
     override func draw(_ dirtyRect: NSRect) {
-        NSColor.black.withAlphaComponent(0.35).setFill()
+        if let frozenImage {
-        NSBezierPath(rect: bounds).fill()
+            drawFrozen(frozenImage)
+        } else {
+            NSColor.black.withAlphaComponent(0.35).setFill()
+            NSBezierPath(rect: bounds).fill()
+        }
 
         // Esc hint — the only way out once clicks are consumed by the tap.
-        let hint = "Drag to select · hover + click a window to capture it · Esc to cancel"
+        let hint: String
+        if controller?.isRecordingMode == true {
+            hint = "Drag to select · hover + click a window to record · Esc to cancel"
+        } else if frozenImage != nil {
+            hint = "Frozen screen · drag to select · Esc to cancel"
+        } else {
+            hint = "Drag to select · hover + click a window to capture it · Esc to cancel"
+        }
         let hintAttrs: [NSAttributedString.Key: Any] = [
             .font: NSFont.monospacedSystemFont(ofSize: 12, weight: .medium),
             .foregroundColor: NSColor.white.withAlphaComponent(0.85),
@@ -79,6 +122,28 @@ final class OverlayView: NSView {
 
         guard let controller else { return }
 
+        // Frozen mode: same look as live mode — a dark veil over everything,
+        // with the selection showing the frozen pixels undimmed.
+        if let frozenImage {
+            NSColor.black.withAlphaComponent(0.35).setFill()
+            NSBezierPath(rect: bounds).fill()
+
+            if let sel = controller.marqueeRect, sel.width > 0, sel.height > 0 {
+                let vf = viewRect(sel)
+                NSGraphicsContext.current?.saveGraphicsState()
+                NSBezierPath(rect: vf).addClip()
+                drawFrozen(frozenImage)
+                NSGraphicsContext.current?.restoreGraphicsState()
+
+                let border = NSBezierPath(rect: vf)
+                border.lineWidth = 1.5
+                NSColor.controlAccentColor.setStroke()
+                border.stroke()
+                drawSizeLabel(for: sel, in: vf)
+            }
+            return
+        }
+
         // Highlight the hovered window (rounded, like real window corners)
         if let frame = controller.hoverFrame {
             let vf = viewRect(frame)

Sources/Kapture/RecordingController.swift

@@ -0,0 +1,181 @@
+import AppKit
+import SwiftUI
+
+/// Shared recording state, observed by the menu bar menu and control bar.
+final class RecordingState: ObservableObject {
+    @Published var isRecording = false
+    @Published var elapsed: TimeInterval = 0
+}
+
+/// Owns a recording session: the red border around the recorded region and
+/// the floating timer/stop bar. Both chrome windows are excluded from the
+/// video. On stop, the file is auto-saved to ~/Movies and revealed in Finder.
+final class RecordingController {
+    static let shared = RecordingController()
+
+    let state = RecordingState()
+
+    private var recorder: ScreenRecorder?
+    private var chromeWindows: [NSWindow] = []
+    private var timer: Timer?
+
+    /// `region` is in AppKit global points; `windowID` records that window
+    /// instead of the region. Called by CaptureController after the
+    /// selection overlays are hidden.
+    func begin(region: NSRect, windowID: CGWindowID?, excludingWindowIDs: [Int]) {
+        guard !state.isRecording else { return }
+        showChrome(region: region)
+        let excluded = excludingWindowIDs + chromeWindows.map { $0.windowNumber }
+        state.isRecording = true
+
+        let recorder = ScreenRecorder()
+        self.recorder = recorder
+        // Give the window server a beat so the chrome shows up in the
+        // shareable-content snapshot and gets excluded from the video.
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.15) { [weak self] in
+            guard let self, self.recorder === recorder else { return }
+            recorder.start(region: region, windowID: windowID, excludingWindowIDs: excluded) { [weak self] ok in
+                DispatchQueue.main.async {
+                    guard let self else { return }
+                    if ok {
+                        self.startTimer()
+                    } else {
+                        self.finish(url: nil)
+                        ResultWindow.shared.show(image: ResultWindow.failureImage("Could not start the recording. Check Screen Recording permission."))
+                    }
+                }
+            }
+        }
+    }
+
+    func stop() {
+        guard state.isRecording else { return }
+        state.isRecording = false
+        timer?.invalidate()
+        timer = nil
+        recorder?.stop { [weak self] url in
+            DispatchQueue.main.async { self?.finish(url: url) }
+        }
+    }
+
+    /// Best-effort finalize on quit so the .mov isn't left truncated.
+    /// Blocks briefly — only call from applicationWillTerminate.
+    func finalizeForTermination() {
+        guard let recorder else { return }
+        let semaphore = DispatchSemaphore(value: 0)
+        recorder.stop { _ in semaphore.signal() }
+        _ = semaphore.wait(timeout: .now() + 3)
+    }
+
+    private func finish(url: URL?) {
+        state.isRecording = false
+        hideChrome()
+        recorder = nil
+        state.elapsed = 0
+        if let url {
+            CaptureController.log("rec: saved \(url.path)")
+            NSWorkspace.shared.activateFileViewerSelecting([url])
+        }
+    }
+
+    private func startTimer() {
+        let started = Date()
+        state.elapsed = 0
+        timer = Timer.scheduledTimer(withTimeInterval: 0.5, repeats: true) { [weak self] _ in
+            self?.state.elapsed = Date().timeIntervalSince(started)
+        }
+    }
+
+    // MARK: - Chrome
+
+    private func showChrome(region: NSRect) {
+        // Red border around the recorded region.
+        let border = NSPanel(
+            contentRect: region,
+            styleMask: [.borderless, .nonactivatingPanel],
+            backing: .buffered,
+            defer: false
+        )
+        border.level = .screenSaver
+        border.collectionBehavior = [.canJoinAllSpaces, .fullScreenAuxiliary, .stationary]
+        border.backgroundColor = .clear
+        border.isOpaque = false
+        border.hasShadow = false
+        border.ignoresMouseEvents = true
+        border.contentView = RecordingBorderView()
+        border.orderFrontRegardless()
+
+        // Floating timer/stop bar at the bottom centre of the region.
+        let bar = NSPanel(
+            contentRect: .zero,
+            styleMask: [.borderless, .nonactivatingPanel],
+            backing: .buffered,
+            defer: false
+        )
+        bar.level = .screenSaver
+        bar.collectionBehavior = [.canJoinAllSpaces, .fullScreenAuxiliary, .stationary]
+        bar.backgroundColor = .clear
+        bar.isOpaque = false
+        bar.hasShadow = false
+        let hosting = NSHostingView(rootView: RecordingBarView(state: state) { [weak self] in
+            self?.stop()
+        })
+        let size = hosting.fittingSize
+        bar.setContentSize(size)
+        bar.setFrameOrigin(NSPoint(x: region.midX - size.width / 2, y: region.minY + 14))
+        bar.contentView = hosting
+        bar.orderFrontRegardless()
+
+        chromeWindows = [border, bar]
+    }
+
+    private func hideChrome() {
+        chromeWindows.forEach { $0.orderOut(nil) }
+        chromeWindows = []
+    }
+}
+
+/// Draws the red rounded border around the recorded region.
+private final class RecordingBorderView: NSView {
+    override func draw(_ dirtyRect: NSRect) {
+        let path = NSBezierPath(roundedRect: bounds.insetBy(dx: 2, dy: 2), xRadius: 8, yRadius: 8)
+        NSColor.systemRed.setStroke()
+        path.lineWidth = 3
+        path.stroke()
+    }
+}
+
+/// The floating capsule bar: red dot, elapsed time, stop button.
+struct RecordingBarView: View {
+    @ObservedObject var state: RecordingState
+    let onStop: () -> Void
+
+    private var timeString: String {
+        let total = Int(state.elapsed)
+        return String(format: "%02d:%02d", total / 60, total % 60)
+    }
+
+    var body: some View {
+        HStack(spacing: 10) {
+            Circle()
+                .fill(Color.red)
+                .frame(width: 8, height: 8)
+            Text(timeString)
+                .font(.system(size: 12, weight: .medium).monospacedDigit())
+                .foregroundStyle(.white)
+            Button(action: onStop) {
+                Image(systemName: "stop.fill")
+                    .font(.system(size: 10, weight: .bold))
+                    .foregroundStyle(.white)
+                    .frame(width: 22, height: 22)
+                    .background(Circle().fill(Color.red))
+                    .contentShape(Circle())
+            }
+            .buttonStyle(.plain)
+            .help("Stop recording (⌃⇧⌘R)")
+        }
+        .padding(.horizontal, 12)
+        .padding(.vertical, 7)
+        .background(Capsule().fill(Color.black.opacity(0.78)))
+    }
+}

Sources/Kapture/ScreenRecorder.swift

@@ -0,0 +1,203 @@
+import AppKit
+import AVFoundation
+import CoreMedia
+import ScreenCaptureKit
+
+/// Records a screen region (or a single window) to an H.264 .mov via
+/// SCStream -> AVAssetWriter. Works on macOS 13+ (no SCScreenshotManager).
+///
+/// Video-only for now: the audio path is wired behind `includeAudio`
+/// (off) — enabling sound later means setting the flag to true, which
+/// turns on `capturesAudio`, adds an AAC track, and starts appending
+/// audio sample buffers. That path is untested until enabled.
+final class ScreenRecorder: NSObject, SCStreamOutput, SCStreamDelegate {
+    /// Future: also record system audio into the .mov.
+    var includeAudio = false
+
+    private let queue = DispatchQueue(label: "dev.tzgyn.kapture.rec")
+    private var stream: SCStream?
+    private var writer: AVAssetWriter?
+    private var videoInput: AVAssetWriterInput?
+    private var audioInput: AVAssetWriterInput?
+    private var sessionStarted = false
+    private var outputURL: URL?
+
+    /// `region` is in AppKit global points. When `windowID` is given the
+    /// stream records that window directly (and follows it if it moves);
+    /// otherwise it records `region` via a display filter + sourceRect.
+    func start(region: NSRect, windowID: CGWindowID?, excludingWindowIDs: [Int], completion: @escaping (Bool) -> Void) {
+        Task {
+            do {
+                try await prepare(region: region, windowID: windowID, excludingWindowIDs: excludingWindowIDs)
+                completion(true)
+            } catch {
+                CaptureController.log("rec: start failed: \(error.localizedDescription)")
+                completion(false)
+            }
+        }
+    }
+
+    private func prepare(region: NSRect, windowID: CGWindowID?, excludingWindowIDs: [Int]) async throws {
+        let content = try await SCShareableContent.current
+
+        let excludedSet = Set(excludingWindowIDs.map { CGWindowID($0) })
+        let excluded = content.windows.filter { excludedSet.contains($0.windowID) }
+
+        let config = SCStreamConfiguration()
+        let filter: SCContentFilter
+        let pixelWidth: Int
+        let pixelHeight: Int
+
+        let regionCentre = NSPoint(x: region.midX, y: region.midY)
+        let screen = NSScreen.screens.first(where: { $0.frame.contains(regionCentre) }) ?? NSScreen.screens.first
+        let scale = screen?.backingScaleFactor ?? 2
+
+        if let windowID, let scWindow = content.windows.first(where: { $0.windowID == windowID }) {
+            filter = SCContentFilter(desktopIndependentWindow: scWindow)
+            pixelWidth = max(2, Int(scWindow.frame.width * scale) / 2 * 2)
+            pixelHeight = max(2, Int(scWindow.frame.height * scale) / 2 * 2)
+            CaptureController.log("rec: window id=\(windowID) \(pixelWidth)x\(pixelHeight)")
+        } else {
+            guard let screen else {
+                throw NSError(domain: "dev.tzgyn.kapture", code: 1, userInfo: [NSLocalizedDescriptionKey: "No screen for region"])
+            }
+            let cgID = (screen.deviceDescription[NSDeviceDescriptionKey("NSScreenNumber")] as? NSNumber)?.uint32Value ?? 0
+            guard let display = content.displays.first(where: { $0.displayID == cgID }) ?? content.displays.first else {
+                throw NSError(domain: "dev.tzgyn.kapture", code: 2, userInfo: [NSLocalizedDescriptionKey: "No display for region"])
+            }
+            filter = SCContentFilter(display: display, excludingWindows: excluded)
+            // sourceRect is display-local POINTS with a TOP-LEFT origin
+            // (same mapping cropFrozen uses for the frozen snapshots).
+            let local = CGRect(
+                x: region.minX - screen.frame.minX,
+                y: screen.frame.maxY - region.maxY,
+                width: region.width,
+                height: region.height
+            ).intersection(CGRect(x: 0, y: 0, width: display.frame.width, height: display.frame.height))
+            guard local.width >= 2, local.height >= 2 else {
+                throw NSError(domain: "dev.tzgyn.kapture", code: 3, userInfo: [NSLocalizedDescriptionKey: "Region outside display"])
+            }
+            config.sourceRect = local
+            pixelWidth = max(2, Int(local.width * scale) / 2 * 2)
+            pixelHeight = max(2, Int(local.height * scale) / 2 * 2)
+            CaptureController.log("rec: region \(region) sourceRect=\(local) \(pixelWidth)x\(pixelHeight)")
+        }
+
+        config.width = pixelWidth
+        config.height = pixelHeight
+        config.minimumFrameInterval = CMTime(value: 1, timescale: 60)
+        config.pixelFormat = kCVPixelFormatType_32BGRA
+        // Recordings SHOULD include the pointer (unlike stills).
+        config.showsCursor = true
+        config.queueDepth = 6
+        config.capturesAudio = includeAudio
+
+        let movies = FileManager.default.urls(for: .moviesDirectory, in: .userDomainMask).first
+            ?? URL(fileURLWithPath: NSHomeDirectory())
+        let url = movies.appendingPathComponent("Kapture-\(Self.timestamp()).mov")
+        let writer = try AVAssetWriter(url: url, fileType: .mov)
+
+        let videoInput = AVAssetWriterInput(mediaType: .video, outputSettings: [
+            AVVideoCodecKey: AVVideoCodecType.h264,
+            AVVideoWidthKey: pixelWidth,
+            AVVideoHeightKey: pixelHeight,
+        ])
+        videoInput.expectsMediaDataInRealTime = true
+        writer.add(videoInput)
+
+        var audioInput: AVAssetWriterInput?
+        if includeAudio {
+            let input = AVAssetWriterInput(mediaType: .audio, outputSettings: [
+                AVFormatIDKey: kAudioFormatMPEG4AAC,
+                AVSampleRateKey: 48000,
+                AVNumberOfChannelsKey: 2,
+            ])
+            input.expectsMediaDataInRealTime = true
+            writer.add(input)
+            audioInput = input
+        }
+
+        guard writer.startWriting() else {
+            throw writer.error ?? NSError(domain: "dev.tzgyn.kapture", code: 4, userInfo: [NSLocalizedDescriptionKey: "AVAssetWriter failed to start"])
+        }
+
+        let stream = SCStream(filter: filter, configuration: config, delegate: self)
+        try stream.addStreamOutput(self, type: .screen, sampleHandlerQueue: queue)
+        if includeAudio {
+            try stream.addStreamOutput(self, type: .audio, sampleHandlerQueue: queue)
+        }
+        try await stream.startCapture()
+
+        self.stream = stream
+        self.writer = writer
+        self.videoInput = videoInput
+        self.audioInput = audioInput
+        self.outputURL = url
+        CaptureController.log("rec: started -> \(url.lastPathComponent)")
+    }
+
+    /// Stops the stream and finalizes the file. Completion gets the URL on
+    /// success (called on an internal queue — hop to main for UI).
+    func stop(completion: @escaping (URL?) -> Void) {
+        Task {
+            try? await stream?.stopCapture()
+            stream = nil
+            queue.async {
+                guard let writer = self.writer else {
+                    completion(nil)
+                    return
+                }
+                self.videoInput?.markAsFinished()
+                self.audioInput?.markAsFinished()
+                let url = self.outputURL
+                self.writer = nil
+                self.videoInput = nil
+                self.audioInput = nil
+                self.sessionStarted = false
+                writer.finishWriting {
+                    CaptureController.log("rec: finished status=\(writer.status.rawValue)")
+                    completion(writer.status == .completed ? url : nil)
+                }
+            }
+        }
+    }
+
+    // MARK: SCStreamOutput (called on `queue`)
+
+    func stream(_ stream: SCStream, didOutputSampleBuffer sampleBuffer: CMSampleBuffer, of type: SCStreamOutputType) {
+        guard CMSampleBufferDataIsReady(sampleBuffer), let writer, let videoInput else { return }
+        switch type {
+        case .screen:
+            // Skip incomplete frames (macOS 13.1+ exposes a frame status).
+            if #available(macOS 13.1, *) {
+                guard let attachments = (CMSampleBufferGetSampleAttachmentsArray(sampleBuffer, createIfNecessary: false) as? [NSDictionary])?.first,
+                      let dict = attachments as? [String: Any],
+                      let statusRaw = dict[SCStreamFrameInfo.status.rawValue] as? Int,
+                      SCFrameStatus(rawValue: statusRaw) == .complete else { return }
+            }
+            guard videoInput.isReadyForMoreMediaData else { return }
+            if !sessionStarted {
+                sessionStarted = true
+                writer.startSession(atSourceTime: CMSampleBufferGetPresentationTimeStamp(sampleBuffer))
+            }
+            videoInput.append(sampleBuffer)
+        case .audio:
+            guard includeAudio, sessionStarted, let audioInput, audioInput.isReadyForMoreMediaData else { return }
+            audioInput.append(sampleBuffer)
+        default:
+            break
+        }
+    }
+
+    // MARK: SCStreamDelegate
+
+    func stream(_ stream: SCStream, didStopWithError error: Error) {
+        CaptureController.log("rec: stream stopped with error: \(error.localizedDescription)")
+    }
+
+    private static func timestamp() -> String {
+        let formatter = DateFormatter()
+        formatter.dateFormat = "yyyyMMdd-HHmmss"
+        return formatter.string(from: Date())
+    }
+}

build-app.sh

@@ -108,9 +108,9 @@ cat > "$APP/Contents/Info.plist" <<'PLIST'
     <key>CFBundleIconFile</key>
     <string>Icon</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.9.0</string>
+    <string>1.11.2</string>
     <key>CFBundleVersion</key>
-    <string>90</string>
+    <string>112</string>
     <key>LSUIElement</key>
     <true/>
     <key>NSHighResolutionCapable</key>