Error: Use of unresolved identifier 'kCGBlendModeMultiply'

Question

I recently updated to Xcode 7, beta 3.

And I\'ve run into some issues, I can\'t seem to find any questions for on SO.

When I run my application, i get 3 errors

Answer 1

This should work:

CGContextSetBlendMode(ctx, CGBlendMode.Multiply)

... or even just this:

CGContextSetBlendMode(ctx, .Multiply)

If you Ctrl-click on CGContextSetBlendMode and then from its declaration jump (in the same way) to declaration of CGBlendMode then you will see:

enum CGBlendMode : Int32 {

    /* Available in Mac OS X 10.4 & later. */
    case Normal
    case Multiply
    case Screen
    case Overlay

    // ...
}

Similarly, the other line that produces the error should be changed to:

let strokingPath = CGPathCreateCopyByStrokingPath(layer.path, nil, 4, .Round, .Miter, 4)