I can't chance upon the right incantation for using both an existing
variable and an inline new one in a for loop. I've boiled this down to
a trivial show case, same results for both gcc 4.0.1 and 4.2.1:
int i;
. . .
for (i=0, int m=0; i<5; i++) { . . . };
printf("Final value of i: %
On Nov 12, 2009, at 12:14 PM, Greg Parker wrote:
On Nov 12, 2009, at 11:29 AM, Jonathon Kuo wrote:
I can't chance upon the right incantation for using both an
existing variable and an inline new one in a for loop. I've boiled
this down to a trivial show case, same results for both
How can I intercept or get notified when a user clicks on an NSColorWell?
OSX 10.6.2
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niak wrote:
> Subclass and override mouseDown: - however if you're trying to intercept
> right before the color panel is shown, or a drag starts, that may be trickier.
>
> What are you trying to do generally?
>
>
> On Mar 12, 2010, at 1:30 PM, Jonathon Kuo wrote:
>
>&g
stions after you
> run it. It has a custom mini color picker thingy.
>
> corbin
>
> On Mar 12, 2010, at 2:17 PM, Jonathon Kuo wrote:
>
>> I need to generate an ad-hoc number of color swatches in a floating window
>> so that when a user clicks on one of them,
I've created a subclass of NSTextFieldCell that just adds the
-hitTestForEvent:inRect:ofView:
method. If I substitute my subclass in an NSTableView for the standard
NSTextFieldCells, I do get this callback when a table element is clicked.
But if I substitute my subclass in for an NSTextFie
On Jul 1, 2010, at 7:56 AM, Matt Neuburg wrote:
> "Instance methods defined in a root class can be performed both by instances
> and by class objects. Therefore, all class objects have access to the
> instance methods defined in the root class."
Not that it would generally be USEFUL to do so, sin
On Jul 1, 2010, at 9:49 AM, Kyle Sluder wrote:
> On Jul 1, 2010, at 9:42 AM, Jonathon Kuo
> wrote:
>
>> On Jul 1, 2010, at 7:56 AM, Matt Neuburg wrote:
>>
>>> "Instance methods defined in a root class can be performed both by instances
>>> and by
There used to be an open source Cocoa-based GPS framework for OSX
called FourCoordinates, but I can't find it anywhere on the web
anymore, just dead links. Is there something more modern that has
replaced it?
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Location,
which is pretty solid from my understanding.
-Steven
On Fri, Feb 12, 2010 at 11:57 AM, Jonathon Kuo > wrote:
There used to be an open source Cocoa-based GPS framework for OSX
called FourCoordinates, but I can't find it anywhere on the web
anymore, just dead links.
I'm writing an app for the iPhone, but I need to be mindful how much
virtual memory there is available to the app when it runs, so I can
manage allocing and deallocing some large arrays. I'm guessing that
the OS runs in a small amount (100MB?) of flash memory compared to the
16GB or 32GB of
On Aug 18, 2009, at 4:37 PM, Luke the Hiesterman wrote:
Your app will not be paged to the disk at all. It must run entirely
on in physical memory. To know when you're running out of memory,
override -[UIViewController didReceiveMemoryWarning]
On Aug 18, 2009, at 4:38 PM, Alex Kac wrote:
Yo
On Jul 22, 2010, at 1:10 PM, Quincey Morris wrote:
> id _id;
>
> for (_id in array) {
> }
>
> if (_id)
> {
> }
If I use this to go backward through the array:
for (_id in [array reverseObjectEnumerator]) {
}
...is it still considered 'fast' enumeration?
-Jon
__
On Aug 4, 2010, at 9:43 AM, David Duncan wrote:
> A UIView (really the CALayer owned by the view) can and will display content
> larger than its bounds if given to it.
Is there a way to restrict this behavior, i.e., to make it that the UIView does
not display content beyond its bounds? I'm dea
On Aug 10, 2010, at 5:43 PM, Devraj Mukherjee wrote:
> Hi all,
>
> I am using UISliders in my iOS app.
>
> I can't see a way of setting the slide value interval. Is this
> possible? Or do I have to calculate the change based on the 0.1
> increases?
>
> Minimum value set to -20 and Max to 20 an
You're missing a [theImage release] at the end of your method.
On Oct 5, 2010, at 2:46 PM, Chris Tracewell wrote:
> I have an NSImageView that accepts an image drop then sizes the image and
> ftp's it to a web server. The image view is bound to myObject.myImage
> property which set by a window
What's the point of doing this:
> NSPopUpButtonCell *testCell = [ [ [ NSPopUpButtonCell alloc] init]
> autorelease];
if you're doing this 2 lines later:
> testCell = [ olPopups selectedCell];
At this point, I would check for testCell being nil.
-Jon
On Oct 29, 2010, at 2:02 PM, Rei
I'm doing an iPhone 4.1 app and I have a toolbar at the bottom with bar
buttons. The problem is that I need to set one of the bar buttons to "Touch
Down" instead of the default "Touch Up Inside" but IB doesn't show any touch
options for toolbar buttons (it does for buttons not in the toolbar).
that toolbar 'buttons'
>> aren't real buttons -- they're class UIBarButtonItem from UIBarItem from
>> NSObject. Since they're not really buttons, there doesn't appear any way to
>> modify their behavior. If there is a way, I'd like to know, too...
>>
On Nov 16, 2010, at 9:12 AM, Matt Neuburg wrote:
> On Mon, 15 Nov 2010 10:02:44 -0800, Jonathon Kuo
> said:
>> Interesting idea, probably a little beyond me. :)
>
> Nonsense. This is perfectly standard and easy. A UIButton can send an action
> message on TouchDown. I
On Nov 17, 2010, at 8:47 AM, Matt Neuburg wrote:
>
> On Nov 16, 2010, at 9:26 AM, Jonathon Kuo wrote:
>
>> I agree: that's how I expected it to work, too, but that's not how it does
>> work (Xcode 3.2.4). If I drag a Round Rect Button onto the Toolbar, it
On Nov 17, 2010, at 10:54 AM, Matt Neuburg wrote:
>
> On Nov 17, 2010, at 10:25 AM, Jonathon Kuo wrote:
>
>> One question though: Taking another poster's suggestion, I placed a UISwitch
>> in the toolbar and set Touch Down on it. It does register, but only for th
I'm trying to learn GCD and reading
http://developer.apple.com/library/mac/#featuredarticles/BlocksGCD/index.html
But the Global Concurrent Queues example in that document (last updated
2010-11-10) doesn't even compile. It complains about accessing array 'result'
from within the block:
#define
lock struct {
> double result[COUNT];
> } results;
>
>
> davez
>
>
>
> On Dec 14, 2010, at 7:30 PM, Jonathon Kuo wrote:
>
>> I'm trying to learn GCD and reading
>> http://developer.apple.com/library/mac/#featuredarticles/BlocksGCD/in
When a GCD source gets cancelled, either via dispatch_source_cancel() or
because the source went away, I have no context other than the
dispatch_source_t source variable. How can I know for which source a source
cancel handler gets invoked? I have many simultaneous sources (sockets, files,
etc)
ed by the aforementioned API.
>
> Have fun,
>
> davez
>
>
> On Jan 5, 2011, at 10:58 AM, Jonathon Kuo wrote:
>
>> When a GCD source gets cancelled, either via dispatch_source_cancel() or
>> because the source went away, I have no context other than the
>> di
On Jan 5, 2011, at 12:41 PM, Dave Keck wrote:
>> Q: When a context object is set with dispatch_set_context(), is it retained?
>> Or do I need to retain it first, set it, and then in the cancel handler
>> release it?
>
> The 'context' argument is not retained. You can infer this primarily
> by
On Jan 6, 2011, at 1:15 PM, Fritz Anderson wrote:
> Taking "by value" to mean "as many uninterpreted bits as will fit into a
> variable of type void*," yes.
On Jan 6, 2011, at 1:14 PM, Dave Zarzycki wrote:
> Yes, that is the nature of void *. Nothing can be known about a void * other
> than th
PE, SIG_IGN) right inside of main(). Thereafter, Unix APIs like
> read(), write(), etc will return -1 and errno will be equal to EPIPE.
>
> davez
>
> On Jan 6, 2011, at 1:22 PM, Jonathon Kuo wrote:
>
>> On Jan 6, 2011, at 1:15 PM, Fritz Anderson wrote:
>>
>>&g
I set up a source handler on a TCP socket like this:
dispatch_source_t newsrc =
dispatch_source_create(DISPATCH_SOURCE_TYPE_READ,sockfd,0,globalQueue);
It works well, and when a client process closes his socket my cancel_handler
gets called, I clean up, and life is good. But if I do a close
On Jan 10, 2011, at 2:58 PM, Ken Thomases wrote:
> On Jan 10, 2011, at 4:20 PM, Dave Zarzycki wrote:
>
>> On Jan 10, 2011, at 2:06 PM, Jonathon Kuo wrote:
>>
>>> I set up a source handler on a TCP socket like this:
>>> dispatch_source_t
On Oct 17, 2008, at 1:21 PM, Kyle Sluder wrote:
On Fri, Oct 17, 2008 at 8:51 AM, Sachin Kumar <[EMAIL PROTECTED]
> wrote:
I am using system("rm -r myDriver.kext") to delete the file.
Please, *don't do this*. Pretend 'system' doesn't exist. unlink(2)
does exactly what you're looking for.
J
On Oct 17, 2008, at 5:33 PM, Michael Ash wrote:
On Fri, Oct 17, 2008 at 5:29 PM, Kyle Sluder
<[EMAIL PROTECTED]> wrote:
On Fri, Oct 17, 2008 at 5:17 PM, Jonathon Kuo
<[EMAIL PROTECTED]> wrote:
Just curious why the recommendation against system()?
1) There's no need for it
On Nov 19, 2008, at 9:27 PM, Austin Ziegler wrote:
For a project that I'm working on, I have a need to write a code
generator that will wrap certain kinds of C functions as Objective C
messages on an Objective C proxy. Because I don't ultimately control
the input, the parameters on the C functio
On Nov 20, 2008, at 2:07 PM, Shawn Erickson wrote:
On Thu, Nov 20, 2008 at 1:23 PM, Jonathon Kuo
<[EMAIL PROTECTED]> wrote:
Just my 2 cents, but it seems an abuse to turn functions into
objects.
Functions don't retain state; objects do. Objective C very
gracefully allows
object
On Nov 20, 2008, at 5:06 PM, Charles Srstka wrote:
On Nov 20, 2008, at 5:58 PM, Jonathon Kuo wrote:
On Nov 20, 2008, at 2:07 PM, Shawn Erickson wrote:
On Thu, Nov 20, 2008 at 1:23 PM, Jonathon Kuo
<[EMAIL PROTECTED]> wrote:
Just my 2 cents, but it seems an abuse to turn function
On Nov 20, 2008, at 5:53 PM, Charles Srstka wrote:
On Nov 20, 2008, at 7:40 PM, Jonathon Kuo wrote:
On Nov 20, 2008, at 5:06 PM, Charles Srstka wrote:
On Nov 20, 2008, at 5:58 PM, Jonathon Kuo wrote:
On Nov 20, 2008, at 2:07 PM, Shawn Erickson wrote:
On Thu, Nov 20, 2008 at 1:23 PM
I have some tiny images (4x3, etc) that I'm displaying in a large
NSImageView. I set the view with setImageScaling:NSScaleToFit. This
works, but instead of getting well-defined block 'pixels', I get sort
of a 'shower-door' gradient effect within each pixel block.
<>
<>
How can I set the
erpolation:
NSImageInterpolationNone];
On 2 Dec 2008, at 23:45, Jonathon Kuo wrote:
I have some tiny images (4x3, etc) that I'm displaying in a large
NSImageView. I set the view with setImageScaling:NSScaleToFit. This
works, but instead of getting well-defined block 'pixels', I get
No, we were never able to find a fix or workaround for this. We're
operating now on the assumption that it's an unfixable design flaw in
DO. This makes for a very fragile client/server implementation.
Jonathon
On Dec 6, 2008, at 1:31 AM, Bridger Maxwell wrote:
Hey,
Did you ever figure out
On Dec 12, 2008, at 2:29 PM, Nick Zitzmann wrote:
In most 32-bit programs, even trying to allocate hundreds of
megabytes of contiguous RAM at once often fails due to memory
fragmentation.
Is there a function that allocates contiguous RAM? You mean VRAM,
right? I thought anything you mallo
On Dec 12, 2008, at 10:36 AM, has wrote:
Mr. Gecko wrote:
I'm trying to find out how to announce the time every 30 minutes,
You could run 'say `date`' as a cron job.
Interesting. The "speaker" translates "Fri Dec 12 17:52:58 PST 2008"
into these spoken words:
"free december twelfth s
In NSString theres -intValue, -floatValue, -doubleValue, but no -
hexValue (that I can find). I'd like to convert ascii hex NSStrings
(@"001A4CD3" etc) into integer values. Having a -hexValue method would
make that a snap. If theres no Cocoa way, I guess I could try my hand
at writing a cate
long *)result;
so you can
unsigned yourValueHere;
BOOL success = [[NSScanner scannerWithString:string]
scanHexInt:&yourValueHere];
Ali
On Mar 23, 2009, at 6:00 PM, Jonathon Kuo wrote:
In NSString theres -intValue, -floatValue, -doubleValue, but no -
hexValue (that I can find). I&#x
On May 4, 2009, at 8:12 PM, Ken Thomases wrote Re: 'A couple NSRunLoop
questions':
Every thread has exactly one run loop associated with it. You don't
create run loops nor do you remove them.
On May 5, 2009, at 9:24 PM, Michael Ash wrote Re: 'NSNotificationQueue
& NSOperationQueue thread
On May 6, 2009, at 9:03 AM, Michael Ash wrote:
It is correct that every thread conceptually has exactly one runloop.
I say "conceptually" because in fact they are created on demand.
So if a thread has no need to pay attention to asynchronous events
(timers, input sources, etc) but is only in
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