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

I circumvented the issue with this code snippet.

- (NSView *)findNextSiblingBelowEventLocation:(NSEvent *)theEvent {
  // Translate the event location to view coordinates
  NSPoint location = [theEvent locationInWindow];
  NSPoint convertedLocation = [self convertPointFromBase:location];

  // Find next view below self
  NSArray *siblings = [[self superview] subviews];
  NSView *viewBelow = nil;
  for (NSView *view in siblings) {
    if (view != self) {
      NSView *hitView = [view hitTest:convertedLocation];
      if (hitView != nil) {
        viewBelow = hitView;
      }
    }
  }
  return viewBelow;
}

- (void)mouseDown:(NSEvent *)theEvent {
  NSView *viewBelow = [self findNextSiblingBelowEventLocation:theEvent];
  if (viewBelow) {
    [[self window] makeFirstResponder:viewBelow];
  }
  [super mouseDown:theEvent];
}