Re: Access to events in tight loop?
Re: Access to events in tight loop?
- Subject: Re: Access to events in tight loop?
- From: chaitanya pandit <email@hidden>
- Date: Mon, 28 Jul 2008 12:17:04 -0400
What you can do is use the NSWindow's nextEventMatchingMask: method to
determine the next event, here you can check for events that should
discontinue your current processing.
So, say if u want to do some processing only while mouse down, and
stop if there is a mouse up while you are doing it then u can do:
- (void)mouseDown:(NSEvent *)event
{
while ([event type] != NSLeftMouseUp )
{
// do processing
// get the new event
event = [[self window] nextEventMatchingMask:NSLeftMouseUpMask];
}
}
-Chaitanya
On 28-Jul-08, at 11:53 AM, Scott Squires wrote:
If I handle a mouse event and am processing it in a time consuming
method which includes display, what's the cleanest way to peek at
events
during this time (to get updated mouse info,etc ) or to allow the
run loop to continue enough to make another pass?
Is there a clean way to allow the main thread to update?
I know I could create another thread for the routine but with issues
of events, drawing and handling mutable arrays I thought I'd see if
there was a simpler method I was overlooking.
Thanks.
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