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NSView receives twice and more "mouseEntered" when window show&hide

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NSView receives twice and more "mouseEntered" when window show&hide

Subject: NSView receives twice and more "mouseEntered" when window show&hide
From: Constantine <email@hidden>
Date: Thu, 27 Sep 2007 20:27:45 +0800

Hi I subclassed a NSView object to get the "mouseEntered / mouseExited" notifications with "addTrackingRect: owner: userData: assumeInside:" methord. But I found that once I show & hide or miniaturize & deminiaturize the window where the view is in, app will receive once more "mouseEntered / mouseExited " notification when mouse entered/exited the view. So I add observers for "NSApplicationDidHideNotification / NSApplicationDidUnhideNotification" and "NSWindowDidMiniaturizeNotification / NSWindowDidDeminiaturizeNotification" to remove and add the tracking rectangle everytime I received the notifications to avoid that. Is there any better solution? Any help will be greatly appreciated!

Liu Qi
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