AXUIElementAXValue in swift 4 MacOS SDK 12

gistfile1.txt

class AXUIElementAXValue {
    
    private class func copyAXValue<T>(_ value: AXValue, type: AXValueType, _ handler: (_ memory: T?) -> T) -> T {
        let val = UnsafeMutablePointer<T?>.allocate(capacity: 1)
        AXValueGetValue(value, type, val)
        let ret = handler(val.pointee)
        val.deallocate(capacity: 1)
        return ret
    }
    
    class func asCGRect(value: AXValue) -> CGRect {
        return copyAXValue(value, type: AXValueType.cgRect, {(memory) -> CGRect in
            if let mem = memory {
                return mem
            } else {
                return CGRect.zero
            }
        })
    }
    
    class func asCGPoint(value: AXValue) -> CGPoint {
        return copyAXValue(value, type: AXValueType.cgPoint, {(memory) -> CGPoint in
            if let mem = memory {
                return mem
            } else {
                return CGPoint.zero
            }
        })
    }
    
    class func asCFRange(value: AXValue) -> CFRange {
        return copyAXValue(value, type: AXValueType.cfRange, {(memory) -> CFRange in
            if let mem = memory {
                return mem
            } else {
                return CFRange(location: 0, length: 0)
            }
        })
    }
    
    class func asCGSize(value: AXValue) -> CGSize {
        return copyAXValue(value, type: AXValueType.cgSize, { (memory) -> CGSize in
            if let mem = memory {
                return mem
            } else {
                return CGSize.zero
            }
        })
    }

}

This gist inspired by https://gist.github.com/c9iim/904a184921bb00bda759