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Re: Best way to get different events for a button mouseDown and mouseUp?

Buttons are not really set up for this, so what you describe may be the easiest thing.

If what you intend is to have something going on while the button is down and then stop when it is up, though, you might want to look at the -setContinuous: and -setPeriodicDelay:interval: API...

Mike


Begin forwarded message:

From: Dan Wood <email@hidden>
Date: Sat Dec 28, 2002 2:30:26 PM US/Pacific
To: Cocoa dev <email@hidden>
Subject: Best way to get different events for a button mouseDown and mouseUp?

I have a need for some buttons that need to notify my code on both the "mouse down" AND the "mouse up". It looks like one way to do this is to make a subclass of NSButtonCell and override startTrackingAt:inView: and stopTracking:at:inView:mouseIsUp:, and also subclass NSButton and call setCellClass: to associate my button cell class with the button. Then I'd store selectors that the button cell would invoke, and hook up a pseudo "action" for mouse up and mouse down.

Is this the preferred way to do this? It seems like there ought to be something simpler, but I don't see it.....



--
Dan Wood
Karelia Software, LLC
email@hidden
http://www.karelia.com/
Watson for Mac OS X: http://www.karelia.com/watson/
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References: 
 >Best way to get different events for a button mouseDown and mouseUp? (From: Dan Wood <email@hidden>)



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