Re: Image manipulation in 10.8
Re: Image manipulation in 10.8
- Subject: Re: Image manipulation in 10.8
- From: Amy Gibbs <email@hidden>
- Date: Sat, 05 Jan 2013 15:12:26 +0000
It looks like the issue may be the
[img drawInRect:NSMakeRect(x,y,xb,yb) fromRect:NSMakeRect(0,0,0,0) operation:NSCompositeCopy fraction:1];
should be
[img drawInRect:NSMakeRect(x,y,xb,yb) fromRect:NSMakeRect(0,0,0,0) operation:NSCompositeSourceOver fraction:1];
I'm trying to check that some images are there but Xcode keeps crashing when I try to access the data model, any version, in either 4.5 or 3.2 I get the following error
Uncaught Exception:
*** -[__NSArrayI objectAtIndex:]: index 0 beyond bounds for empty array
Stack Backtrace:
The stack backtrace has been logged to the console.
The app was originally written in Xcode 3.2 on OS10.5
Many Thanks
Amy
On 5 Jan 2013, at 11:48AM, Ken Thomases <email@hidden> wrote:
> On Jan 5, 2013, at 2:44 AM, Amy Gibbs wrote:
>
>> i've got a section of code that worked perfectly in 10.5. It doesn't in 10.8 and I can't see why. It's not too complicated, it basically takes a selection of images and combines them into a single image and saves it to a couple of locations. Can anyone point out the problem to me please?
>
> The code snippet is hard to interpret because it's apparently incomplete. For example, there are mismatched braces, etc.
>
> It also seems like you lock focus on the image multiple times but only unlock it once.
>
> In any case, you should always read the release notes for the frameworks. Especially when it comes to image manipulation, you should read the Snow Leopard AppKit release notes. They are really illuminating.
> https://developer.apple.com/library/mac/releasenotes/Cocoa/AppKitOlderNotes.html#X10_6Notes (search for "impedance matching" and keep reading through all of the NSImage and NSBitmapImageRep sections)
>
> Regards,
> Ken
>
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