NSTrackingArea works weird - Entire View, or nothing… no rectangles respected

Question

In my \"InitWithFrame\" method of a view I\'m setting a tracking area for which I want to capture mouse enter/exit events.
My problems are two fold:

1. Withou

Answer 1

Straight from the docs for NSTrackingInVisibleRect:

The NSTrackingArea object is automatically synchronized with changes in the view’s visible area (visibleRect) and the value returned from rect is ignored.

Answer 2

Mike Abdullah's answer explains point 2.

Here is a guess about why you don't receive events at all when not using the NSTrackingInVisibleRect flag:
Probably the variable rect you provide is not within the view's coordinate system. You could use the following code as the designated initializer of your NSView subclass to receive mouseEntered: and mouseExited: events for the whole area of your view:

- (id)initWithFrame:(NSRect)frame 
{
    if ((self = [super initWithFrame:frame])) 
    {
        //by using [self bounds] we get our internal origin (0, 0)
        NSTrackingArea* trackingArea = [[NSTrackingArea alloc] initWithRect:[self bounds] options:(NSTrackingMouseEnteredAndExited | NSTrackingActiveAlways) owner:self userInfo:nil];
        [self addTrackingArea:trackingArea];
        [trackingArea release];
    }
    return self;
}

Apple's documentation says:

When creating a tracking-area object, you specify a rectangle (in the view’s coordinate system), ...