Is it possible to take a screenshot programmatically of the desktop on mac using Swift 3? I can't find a single thread or forum post about the topic, not even in apple's official documentation.
I have found this so far but it doesn't seem to help: one two
Yes its possible. This function takes all connected monitors screenshots and writes to specified path as jpg file. Generates file name as unix time stamp.
func TakeScreensShots(folderName: String){
var displayCount: UInt32 = 0;
var result = CGGetActiveDisplayList(0, nil, &displayCount)
if (result != CGError.success) {
print("error: \(result)")
return
}
let allocated = Int(displayCount)
let activeDisplays = UnsafeMutablePointer<CGDirectDisplayID>.allocate(capacity: allocated)
result = CGGetActiveDisplayList(displayCount, activeDisplays, &displayCount)
if (result != CGError.success) {
print("error: \(result)")
return
}
for i in 1...displayCount {
let unixTimestamp = CreateTimeStamp()
let fileUrl = URL(fileURLWithPath: folderName + "\(unixTimestamp)" + "_" + "\(i)" + ".jpg", isDirectory: true)
let screenShot:CGImage = CGDisplayCreateImage(activeDisplays[Int(i-1)])!
let bitmapRep = NSBitmapImageRep(cgImage: screenShot)
let jpegData = bitmapRep.representation(using: NSBitmapImageRep.FileType.jpeg, properties: [:])!
do {
try jpegData.write(to: fileUrl, options: .atomic)
}
catch {print("error: \(error)")}
}
}
func CreateTimeStamp() -> Int32
{
return Int32(Date().timeIntervalSince1970)
}