Re: tracking area problems on 10.4.11

FROM : Tony Becker
DATE : Wed Jul 02 19:21:42 2008

As a general rule, the tracking rects are smaller then the whole 
window, and technically need the mouse to enter/exit, which I don't 
see happening, if they are the same size.

Try something like:
   [[mWindow contentView] addTrackingRect:NSInsetRect([mWindow frame], 
[mWindow frame].size.width/4.0, [mWindow frame].size.height/4.0)
                   owner:self
                   ...

Which will create a tracking rect 1/2 the size of the window, centered.
The owner is the one who gets the callback, which is your class.

On Jul 1, 2008, at 5:29 PM, Wesley Smith wrote:

> Hi,
> I'm trying to get the following events to trigger:
>
> - (void)mouseEntered:(NSEvent *)theEvent
> - (void)mouseExited:(NSEvent *)theEvent
>
> I'm using this call to get it to work:
>
> [[mWindow contentView] addTrackingRect:[mWindow frame]
>                             owner:[mWindow contentView]
>                             userData:nil
>                             assumeInside:NO];
>
> I've also tried:
> [[mWindow contentView] addTrackingRect:[mWindow frame]
>                             owner:mWindow
>                             userData:nil
>                             assumeInside:NO];
>
> mWindow is a custom NSWindow and the content view attached is also a
> custom NSView.  I've defined the above event handlers in both custom
> classes and set breakpoints, print messages, etc. but despite who I
> set as owner of the tracking rect, I can't get the events to trigger.
> Is there something else I have to do?
>
> thanks,
> wes
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