Click through NSView

Question

I have an NSView containing multiple subviews. One of those subviews is transparent and layered on top.

I need to be able to click through this view dow

Answer 1

Here's a Swift 5 version of Erik Aigner's answer:

public override func mouseDown(with event: NSEvent) {
    // Translate the event location to view coordinates
    let convertedLocation = self.convertFromBacking(event.locationInWindow)

    if let viewBelow = self
        .superview?
        .subviews // Find next view below self
        .lazy
        .compactMap({ $0.hitTest(convertedLocation) })
        .first
    {
        self.window?.makeFirstResponder(viewBelow)
    }

    super.mouseDown(with: event)
}