On Nov 11, 2011, at 16:59 , April wrote:
> That's why the meaningless name in my email even though by and large I do not
> use a pseudonym anywhere else in the world.
AFAIK, there is not and never has been any standard of etiquette for this list
that forbids or even frowns upon the use of pseud
I have a UIViewController which is presented modally, it has a textfield which
allows editing and a model object, call it foo, on which it can attempt to set
the 'topicName' property. Because I'm dealing with UIDocument(s) and trying to
be nicely iCloud compatible and the topic name change does
Le 12 nov. 2011 à 04:41, Conrad Shultz a écrit :
> On 11/11/11 6:39 PM, Vojtěch Meluzín wrote:
>> Hi,
>>
>> I'm using BSD sockets for some internet access, it works fine. But if there
>> is no connection available, it waits for say 30 seconds completely stopping
>> the application. Is there a wa
Le 12 nov. 2011 à 03:34, Charles Srstka a écrit :
> On Nov 11, 2011, at 8:22 PM, Wim Lewis wrote:
>
>> On Nov 11, 2011, at 5:49 PM, Nathan Sims wrote:
>>> Newb question. I need to create an OS X Cocoa library that is going to be
>>> called from a C program. The C program's interface will be sim
ARC doesn’t know in the context of that method what will happen to the
block. Each method lives in a vacuum with retain counts being consistent at
the beginning and end. So, even though you know that the block will be
released, that’s not clear in the context of the method. I would recommend
the ap
On Nov 11, 2011, at 6:39 PM, Vojtěch Meluzín wrote:
> I'm using BSD sockets for some internet access, it works fine. But if there
> is no connection available, it waits for say 30 seconds completely stopping
> the application. Is there a way to determine if there is actually an
> internet connect
On Nov 11, 2011, at 6:22 PM, Wim Lewis wrote:
> int get_float_data(float *result1, float *result2)
> {
> NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
> @try {
> [objcCode call];
> *result1 = [more stuff];
> etc.;
> } @catch {
> fprintf(stderr, "omg doomed!\n");
> etc.;
> }
On 12 Nov 2011, at 18:45, Nathan Sims wrote:
> On Nov 11, 2011, at 6:22 PM, Wim Lewis wrote:
>
>> int get_float_data(float *result1, float *result2)
>> {
>> NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
>> @try {
>> [objcCode call];
>> *result1 = [more stuff];
>> etc.;
>> } @catc
On Nov 12, 2011, at 10:45 AM, Nathan Sims wrote:
> Okay, does this mean that an object instantiated by a C function has
> persistence across C function calls?
Yes. Think of Objective-C references as pointers to opaque structs, and treat
them like any other generic pointer variable. You can sto
On Nov 11, 2011, at 8:34 PM, Charles Srstka wrote:
> On Nov 11, 2011, at 8:22 PM, Wim Lewis wrote:
>
>> On Nov 11, 2011, at 5:49 PM, Nathan Sims wrote:
>>> (OSX 10.6.8, Xcode 3.2.6)
>>
>> int get_float_data(float *result1, float *result2)
>> {
>> NSAutoreleasePool *pool = [[NSAutoreleasePool all
On 12 Nov 2011, at 18:45, Nathan Sims wrote:
> On Nov 12, 2011, at 10:56 AM, Thomas Davie wrote:
>> Okay, does this mean that an object instantiated by a C function has
>> persistence across C function calls? In the example above you have:
>> [objcCode call];
>> I'm guessing I would have to hav
On Nov 12, 2011, at 12:01 PM, Nathan Sims wrote:
> Hmm, if not a global, where would the declaration go? The C function
> certainly shouldn't return it, so if it is to remain persistent across calls,
> wouldn't the logical (the only?) place for it be as a global in the library's
> .m file?
No
The document for NSBitmapImageRep says the following:
"Alpha Premultiplication
If a coverage (alpha) plane exists, a bitmap’s color components are
premultiplied with it. If you modify the contents of the bitmap, you are
therefore responsible for premultiplying the data. For this reason, though, i
Nathan Sims wrote:
Hmm, if not a global, where would the declaration go? The C
function certainly shouldn't return it, so if it is to remain
persistent across calls, wouldn't the logical (the only?) place for
it be as a global in the library's .m file?
Why shouldn't the C function return
Note that of course you can take this one step further and use a typedef to
mask that you're passing back an untyped pointer:
typedef OCObjcCodeRef void *
OCObjcCodeRef OCCreateObjcCode(void)
{
return (ObjcCodeRef)[[ObjcCode alloc] init]
}
int OCGetFloatData(OCObjcCodeRef objcCodeRef, float
On Nov 12, 2011, at 14:01 , James Merkel wrote:
> d' = a * s + (1 - a) * d
> All premultiplication does is precalculate a * s."
>
> First question -- what is d' in that equation?
It's the result of compositing the source (your image) onto the destination
(the background).
> I read images from
On Nov 12, 2011, at 3:29 PM, Quincey Morris wrote:
> On Nov 12, 2011, at 14:01 , James Merkel wrote:
>
>> d' = a * s + (1 - a) * d
>> All premultiplication does is precalculate a * s."
>>
>> First question -- what is d' in that equation?
>
> It's the result of compositing the source (your imag
Hi, I have implemented app store receipt checking, and it all seemed to be
going OK, but I needed to change the bundle version number and check a new
version, but when I run the application, it seems to download the previously
generated receipt from the app store, which of course has the old bun
I am surprise that I just know we do not need to declare instance variables
explicitly when we declare the property and use @synthesize.
That is we do not need a instance variable to be declared that is
corresponds to the property declaration.
look at this blog:
http://cocoawithlove.com/2010/03
On Nov 13, 2011, at 1:16 AM, ico wrote:
> I am surprise that I just know we do not need to declare instance variables
> explicitly when we declare the property and use @synthesize.
>
> That is we do not need a instance variable to be declared that is
> corresponds to the property declaration.
>
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