On Mar 16, 2010, at 11:34, Richard Somers wrote:

> Consider a view with a mouse moved tracking area. When the view is created 
> and placed on screen, if the mouse is already inside the view, tracking does 
> not begin until the mouse exits and re-enters the view. Does anyone know how 
> to get tracking to work initially when the mouse is inside the view?
> 
> I think this may be the root of my problem and as previously mentioned using 
> NSTrackingAssumeInside does not help.

I'm not sure what the answer is. It seems very context dependent, and maybe 
there are other relevant factors.

This may be a situation where the API contract is insufficient. There really 
aren't any promises about how the tracking process starts and stops. That means 
it's hard to know whether the actual behavior is buggy.

If you can get acceptable results using NSTrackingActiveInActiveApp, you might 
want to consider tracking the first responder status yourself (that is, receive 
the entered/exited/moved messages, don't do anything unless the view is first 
responder). Alternatively, you might consider removing the tracking area when 
the view loses first responder status, and recreating it when the view becomes 
first responder again.


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