Re: pump event
Re: pump event
- Subject: Re: pump event
- From: Alastair Houghton <email@hidden>
- Date: Mon, 26 Oct 2009 10:46:32 +0000
On 25 Oct 2009, at 14:59, simon Scylla wrote:
hello every one
i need to get current system event,waiting until the function get some
event,then remove it from the queue
what should i do?
Usually, *not* that. There are two occasions on which you *might*
want to run an event pump yourself:
1. You're implementing mouse tracking. In this case you have two
options... either handle mouse events in -mouseDown: in a loop (or in
your custom NSCell subclass, again in a loop), or use the three method
approach. The three method approach (-mouseDown:/-mouseDragged:/-
mouseUp:) is cleaner and easier to subclass, but it's also slightly
less responsive.
2. You're writing a computer game. In this case, you're better off
asking this question on one of the game developer mailing lists.
Otherwise, you almost certainly don't want to do this. If you're
porting code from e.g. Windows that uses its own event pump, there are
normally better ways to achieve the same effect on Mac OS X.
Kind regards,
Alastair.
--
http://alastairs-place.net
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| | >pump event (From: simon Scylla <email@hidden>) |