// Performs DDC read or write

public static func performDDCCommunication(service: IOAVService?, send: inout [UInt8], reply: inout [UInt8], writeSleepTime: UInt32 = 10000, numofWriteCycles: UInt8 = 2, readSleepTime: UInt32 = 10000, numOfRetryAttemps: UInt8 = 3, retrySleepTime: UInt32 = 20000) -> Bool {

guard service != nil else {

return success

}

// Scores the likelihood of a display match based on EDID UUID, ProductName and SerialNumber from in ioreg, compared to DisplayCreateInfoDictionary.

private static func ioregMatchScore(displayID: CGDirectDisplayID, ioregEdidUUID: String, ioregProductName: String = "", ioregSerialNumber: Int64 = 0, serviceLocation: Int = 0) -> Int {

if let kDisplayYearOfManufacture = dictionary[kDisplayYearOfManufacture] as? Int64, let kDisplayWeekOfManufacture = dictionary[kDisplayWeekOfManufacture] as? Int64, let kDisplayVendorID = dictionary[kDisplayVendorID] as? Int64, let kDisplayProductID = dictionary[kDisplayProductID] as? Int64, let kDisplayVerticalImageSize = dictionary[kDisplayVerticalImageSize] as? Int64, let kDisplayHorizontalImageSize = dictionary[kDisplayHorizontalImageSize] as? Int64 {

struct KeyLoc {

var key: String

// Iterate to the next AppleCLCD2 or DCPAVServiceProxy item in the ioreg tree and return the name and corresponding service

private static func ioregIterateToNextObjectOfInterest(interests _: [String], iterator: inout io_iterator_t) -> (name: String, service: io_service_t)? {

var service: io_service_t = IO_OBJECT_NULL

let name = UnsafeMutablePointer<CChar>.allocate(capacity: MemoryLayout<io_name_t>.size)

defer {

// Returns IOAVSerivces with associated display properties for matching logic

private static func getIoregServicesForMatching() -> [IOregService] {

var ioregServicesForMatching: [IOregService] = []

let ioregRoot: io_registry_entry_t = IORegistryGetRootEntry(kIOMasterPortDefault)

var iterator = io_iterator_t()

// Check if it is problematic to enable DDC on the display

private static func checkIfDiscouraged(ioregService: IOregService) -> Bool {

let platformExpertDevice = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching("IOPlatformExpertDevice"))

if let modelData = IORegistryEntryCreateCFProperty(platformExpertDevice, "model" as CFString, kCFAllocatorDefault, 0).takeRetainedValue() as? Data, let modelIdentifierCString = String(data: modelData, encoding: .utf8)?.cString(using: .utf8) {

modelIdentifier = String(cString: modelIdentifierCString)

func updateAudioControlTargetDisplays(deviceName: String) -> Int {

self.audioControlTargetDisplays.removeAll()

os_log("Detecting displays for audio control via audio device name matching...", type: .info)

for ddcCapableDisplay in self.getDdcCapableDisplays() {

var displayAudioDeviceName = ddcCapableDisplay.readPrefAsString(key: .audioDeviceNameOverride)

if displayAudioDeviceName == "" {

}

static func isVirtual(displayID: CGDirectDisplayID) -> Bool {

if !DEBUG_MACOS10, #available(macOS 11.0, *) {

let isVirtualDevice = dictionary["kCGDisplayIsVirtualDevice"] as? Bool

let displayIsAirplay = dictionary["kCGDisplayIsAirPlay"] as? Bool

if isVirtualDevice ?? displayIsAirplay ?? false {

}

static func getDisplayRawNameByID(displayID: CGDirectDisplayID) -> String {

if !DEBUG_MACOS10, #available(macOS 11.0, *) {

return name

}

}

static func getDisplayNameByID(displayID: CGDirectDisplayID) -> String {

let defaultName: String = NSLocalizedString("Unknown", comment: "Unknown display name")

if !DEBUG_MACOS10, #available(macOS 11.0, *) {

if CGDisplayIsInHWMirrorSet(displayID) != 0 || CGDisplayIsInMirrorSet(displayID) != 0 {

let mirroredDisplayID = CGDisplayMirrorsDisplay(displayID)

name.append(" | " + mirroredName)

}

}

}

public func write(command: UInt8, value: UInt16, errorRecoveryWaitTime: UInt32? = nil, writeSleepTime: UInt32 = 10000, numofWriteCycles: UInt8 = 2) -> Bool {

var data: [UInt8] = Array(repeating: 0, count: 7)

data[0] = 0x51

return

}

for display in affectedDisplays where !display.readPrefAsBool(key: .isDisabled) {

for display in affectedDisplays where ((display as? OtherDisplay)?.isSwBrightnessNotDefault() ?? false) && !((display as? OtherDisplay)?.isSw() ?? false) && prefs.bool(forKey: PrefKey.separateCombinedScale.rawValue) {

isAnyDisplayInSwAfterBrightnessMode = true

}

if isContrast, let otherDisplay = display as? OtherDisplay {

otherDisplay.stepContrast(isUp: mediaKey == .brightnessUp, isSmallIncrement: isSmallIncrement)

} else {

for display in affectedDisplays where ((display as? OtherDisplay)?.isSwBrightnessNotDefault() ?? false) && !((display as? OtherDisplay)?.isSw() ?? false) && prefs.bool(forKey: PrefKey.separateCombinedScale.rawValue) {

isAnyDisplayInSwAfterBrightnessMode = true

}

slider.frame.origin = NSPoint(x: 15, y: 5)

let view = NSView(frame: NSRect(x: 0, y: 0, width: slider.frame.width + 30 + (showPercent ? 38 : 0), height: slider.frame.height + 14))

view.frame.origin = NSPoint(x: 12, y: 0)

switch command {

case .audioSpeakerVolume: iconName = "speaker.wave.2.fill"

case .brightness: iconName = "sun.max.fill"

var sumVal: Float = 0

var maxVal: Float = 0

var minVal: Float = 1

for key in self.values.keys {

if let val = values[key] {

sumVal += val

let value = sender.stringValue

let values = value.components(separatedBy: ",")

var normalizedValues: [String] = []

for value in values {

let trimmedValue = value.trimmingCharacters(in: CharacterSet(charactersIn: " "))

if !trimmedValue.isEmpty, let intValue = UInt8(trimmedValue, radix: 16), intValue != 0 {

let aboutPrefsVc = storyboard.instantiateController(withIdentifier: "AboutPrefsVC") as? AboutPrefsViewController

let onboardingVc = storyboard.instantiateController(withIdentifier: "onboardingViewController") as? NSWindowController

let mc = NSApplication.shared

let mcDelegate = AppDelegate()

mc.delegate = mcDelegate