Re: Unable to re-add tracking area after it's been removed
Re: Unable to re-add tracking area after it's been removed
- Subject: Re: Unable to re-add tracking area after it's been removed
- From: Quincey Morris <email@hidden>
- Date: Mon, 18 Jul 2011 11:00:42 -0700
On Jul 18, 2011, at 04:59, Gabriel Roth wrote:
> Thanks for the corrections. But changing the line in question to
>
> myTrackingArea = [[NSTrackingArea alloc]
> initWithRect:self.blueView.bounds
> options:(NSTrackingMouseEnteredAndExited |
> NSTrackingActiveInActiveApp | NSTrackingInVisibleRect ) owner:self
> userInfo:nil];
>
> doesn't change the puzzling behavior when attempting to re-add the
> tracking area.
Try it this way:
-(IBAction)addTrackingArea:(id)sender
{
NSAssert (!myTrackingArea, @"Gotta remove the old one first");
myTrackingArea = [[NSTrackingArea alloc]
initWithRect:self.blueView.bounds
options:(NSTrackingMouseEnteredAndExited | NSTrackingActiveInActiveApp | NSTrackingInVisibleRect )
owner:self
userInfo:nil];
[self.blueView addTrackingArea:myTrackingArea];
}
-(IBAction)removeTrackingArea:(id)sender
{
if (!myTrackingArea)
return;
[self.blueView removeTrackingArea:myTrackingArea];
myTrackingArea = nil;
}
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