objective c - Does the mac 2D Quartz support multichannel (CMYK+spot colors) -

I found that quartz 2D only supports standard color spaces (CMYK, RGB ...). Do I want to deal with images for printing, does it support multichannel color space?

Thanks in advance.

No, it does not do this. There are some third party solutions that you want to keep an eye on. For example:

None of these free, unfortunately not.