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| 1 | +import Cocoa |
| 2 | + |
| 3 | +extension NSScreen { |
| 4 | + public var displayID: CGDirectDisplayID { |
| 5 | + return (self.deviceDescription[NSDeviceDescriptionKey("NSScreenNumber")] as? CGDirectDisplayID)! |
| 6 | + } |
| 7 | + |
| 8 | + public var vendorNumber: UInt32? { |
| 9 | + switch self.displayID.vendorNumber { |
| 10 | + case 0xFFFF_FFFF: |
| 11 | + return nil |
| 12 | + case let vendorNumber: |
| 13 | + return vendorNumber |
| 14 | + } |
| 15 | + } |
| 16 | + |
| 17 | + public var modelNumber: UInt32? { |
| 18 | + switch self.displayID.modelNumber { |
| 19 | + case 0xFFFF_FFFF: |
| 20 | + return nil |
| 21 | + case let modelNumber: |
| 22 | + return modelNumber |
| 23 | + } |
| 24 | + } |
| 25 | + |
| 26 | + public var serialNumber: UInt32? { |
| 27 | + switch self.displayID.serialNumber { |
| 28 | + case 0x0000_0000: |
| 29 | + return nil |
| 30 | + case let serialNumber: |
| 31 | + return serialNumber |
| 32 | + } |
| 33 | + } |
| 34 | + |
| 35 | + public var displayName: String? { |
| 36 | + var servicePortIterator = io_iterator_t() |
| 37 | + |
| 38 | + let status = IOServiceGetMatchingServices(kIOMasterPortDefault, IOServiceMatching("IODisplayConnect"), &servicePortIterator) |
| 39 | + guard status == KERN_SUCCESS else { |
| 40 | + return nil |
| 41 | + } |
| 42 | + |
| 43 | + defer { |
| 44 | + assert(IOObjectRelease(servicePortIterator) == KERN_SUCCESS) |
| 45 | + } |
| 46 | + |
| 47 | + while case let object = IOIteratorNext(servicePortIterator), object != 0 { |
| 48 | + let dict = (IODisplayCreateInfoDictionary(object, UInt32(kIODisplayOnlyPreferredName)).takeRetainedValue() as NSDictionary as? [String: AnyObject])! |
| 49 | + |
| 50 | + if dict[kDisplayVendorID] as? UInt32 == self.vendorNumber, |
| 51 | + dict[kDisplayProductID] as? UInt32 == self.modelNumber, |
| 52 | + dict[kDisplaySerialNumber] as? UInt32 == self.serialNumber { |
| 53 | + if let productName = dict["DisplayProductName"] as? [String: String], |
| 54 | + let firstKey = Array(productName.keys).first { |
| 55 | + return productName[firstKey]! |
| 56 | + } |
| 57 | + } |
| 58 | + } |
| 59 | + |
| 60 | + return nil |
| 61 | + } |
| 62 | + |
| 63 | + public var isBuiltin: Bool { |
| 64 | + return CGDisplayIsBuiltin(self.displayID) != 0 |
| 65 | + } |
| 66 | + |
| 67 | + public static func getByDisplayID(displayID: CGDirectDisplayID) -> NSScreen? { |
| 68 | + return NSScreen.screens.first { $0.displayID == displayID } |
| 69 | + } |
| 70 | +} |
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