Re: Displaying a number with Quartz
Re: Displaying a number with Quartz
- Subject: Re: Displaying a number with Quartz
- From: Gunnar Proppe <email@hidden>
- Date: Tue, 26 May 2009 10:11:55 -0700 (PDT)
Actually, your pure Objective C version would be to use NSString's drawAtPoint:withAttributes instead of converting to a char* and using CGContextShowTextAtPoint.
http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Classes/NSString_AppKitAdditions/Reference/Reference.html
Gunnar
----- Original Message ----
> From: Pierre Berloquin <email@hidden>
> To: Sean McBride <email@hidden>
> Cc: email@hidden
> Sent: Tuesday, May 26, 2009 9:13:26 AM
> Subject: Re: Displaying a number with Quartz
>
> Finally, thanks to Alexander, my pure Objective C solution is
> NSString *S = [[NSString alloc] initWithFormat:@"%i", i];
> const char *text = [S UTF8String];
>
> and no warning this time except that I should learn more about C
>
> Thanks
> Pierre
>
> 2009/5/26 Sean McBride
>
> > On 5/26/09 5:12 PM, Alexander Spohr said:
> >
> > >> Never ever use sprintf for anything.
> > >
> > >If you use "%d" and know it will be an int? You know how many chars
> > >you'll have at max, no buffer-overflow possible. (You might argue
> > >here, that at some time we will habe 128-bit ints, but hey you should
> > >recode your app then anyway or just have a buffer large enough to
> > >handle that right at the start)
> > >
> > >And yes - you are right, use snprintf instead... int might become 256
> > >bit.
> >
> > You can use sprintf safely if you're very careful, I suppose, but using
> > snprintf is not harder and so much safer. sprintf is just not worth the
> > risk.
> >
> > --
> > ____________________________________________________________
> > Sean McBride, B. Eng email@hidden
> > Rogue Research www.rogue-research.com
> > Mac Software Developer Montréal, Québec, Canada
> >
> >
> >
>
>
> --
> Blogs : http://bibliobs.nouvelobs.com/blog/jeux-litteraires
> http://pierre-berloquin.blogspot.com/
>
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