Re: Threaded drawing
Re: Threaded drawing
- Subject: Re: Threaded drawing
- From: Graham Cox <email@hidden>
- Date: Fri, 06 Dec 2013 16:27:59 +0100
On 6 Dec 2013, at 11:26 am, Graham Cox <email@hidden> wrote:
> NSBlockOperation* op = [NSBlockOperation blockOperationWithBlock:^
> {
> CGContextClipToRect( ncx, tileRect );
>
> [self drawTile:tileRect inContext:ncx];
> }];
A question for blocks experts:
Is the value of <tileRect> here captured when the block is created,or when it is run?
If the latter, it’s going to be probably wrong most of the time, so how can I make sure it is captured when the block is created?
—Graham
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