Re: passing argument 1 of 'setContents:' from incompatible pointer type
Re: passing argument 1 of 'setContents:' from incompatible pointer type
- Subject: Re: passing argument 1 of 'setContents:' from incompatible pointer type
- From: "Stephen J. Butler" <email@hidden>
- Date: Mon, 9 Feb 2009 01:39:22 -0600
On Mon, Feb 9, 2009 at 1:20 AM, Ken Ferry <email@hidden> wrote:
> On Sun, Feb 8, 2009 at 9:39 PM, Michael Ash <email@hidden> wrote:
>> This really needs a qualifier: NSImage *can* create hidden windows to
>> manage resources. To be more specific, NSImage can create an
>> NSCachedImageRep, which in turn creates NSWindows. The specific
>> circumstances in which this happens are when you draw into an NSImage
>> using lockFocus and the like, and at least sometimes when you draw
>> with the image. Simply creating an NSImage from a file and then
>> extracting one of its representations shouldn't create an
>> NSCachedImageRep.
>
> Drawing an NSImage that is backed by NSBitmapImageRep(s) will also never end
> up creating windows on 10.5, and probably earlier.
>
> -[NSImage lockFocus] is the main thing that will get the windowserver
> involved.
Ahhh... that makes more sense! Thanks for the extra info, guys.
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