text stringlengths 0 30.5k | title stringclasses 1
value | embeddings listlengths 768 768 |
|---|---|---|
I'd like to ask a question then follow it up with my own answer, but also see what answers other people have.
We have two large files which we'd like to read from two separate threads concurrently. One thread will sequentially read fileA while the other thread will sequentially read fileB. There is no locking or commu... | [
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The drive seems to be spending most of its time seeking backwards and forwards between the two files, presumably reading very little after each seek.
If we disable one of the threads and temporarily look at the performance of a single thread then we get much better bandwidth (~45 MiB/sec for this machine). So clearly ... | [
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of 2 GiB each on a machine with 2GiB of RAM. For the purpose of this question we consider them not to be cached and perfectly defragmented. We have used defrag tools and rebooted to ensure this is the case.
We are using no special APIs to read these files. The behaviour is repeatable across various bog-standard APIs s... | [
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this has had no effect, so clearly the amount the OS is physically reading after each disk seek is not dictated by this number. This is exactly what should be expected.
The dramatic difference between one-thread and two-thread performance is repeatable across Windows 2000, Windows XP (32-bit and 64-bit), Windows Serve... | [
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Windows was locked in a single policy: a FIFO queue, where all requests where splitted in 64 KB blocks. I believe that this policy is the cause for the problem you are experiencing: the scheduler will mix requests from the two threads, causing continuous seek between different areas of the disk.
Now, the good news i... | [
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bad news is that I found no way to change disk policy or buffers size in previous versions of Windows. Also, even if raising disk I/O priority of your process will boost the performance against the other processes, you still have the problems of your threads competing against each other.
What I can suggest is to mod... | [
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or wait for X ms
Read for X ms (or Y MB)
Stop reading and check status of thread A again
```
You could use semaphores for status checking or you could use perfmon counters to get the status of the actual disk queue.
The values of X and/or Y could also be auto-tuned by checking the actual trasfer rates and slowly mo... | [
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... | |
performance in every scenario. | [
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*Note: This was posted when I was starting out C#. With 2014 knowledge, I can truly say that auto-properties are among the best things that ever happened to the C# language.*
I am used to create my properties in C# using a private and a public field:
```
private string title;
public string Title
{
get { return ti... | [
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0.01537415478... | |
five lines of code for each field? My personal gripe is that those properties are hiding stuff from me, and I am not a big fan of black magic.
In fact, the hidden private field does not even show up in the debugger, which is OK given the fact that the get/set functions do nothing. But when I want to actually implement... | [
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-0.03382734581... | |
can already do that by simply declaring a public field "Public string Title" without the need of the { get; set; } block, thus even saving more code.
So, what am I missing here? Why would anyone actually want to use auto-properties?
We use them all the time in Stack Overflow.
You may also be interested in a discussio... | [
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0.2671858668... | |
How do you create a static class in C++? I should be able to do something like:
```
cout << "bit 5 is " << BitParser::getBitAt(buffer, 5) << endl;
```
Assuming I created the `BitParser` class. What would the `BitParser` class definition look like?
If you're looking for a way of applying the "static" keyword to a cla... | [
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0.111654706299304... | |
// ...lots of great stuff
private:
// Disallow creating an instance of this object
BitParser() {}
};
```
**BitParser.cpp**
```
bool BitParser::getBitAt(int buffer, int bitIndex)
{
bool isBitSet = false;
// .. determine if bit is set
return isBitSet;
}
```
You can use this code to call the method in the... | [
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Do you use ILMerge? Do you use ILMerge to merge multiple assemblies to ease deployment of dll's? Have you found problems with deployment/versioning in production after ILMerging assemblies together?
I'm looking for some advice in regards to using ILMerge to reduce deployment friction, if that is even possible.
I use I... | [
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WPF (at least I haven't had any success with that). It complains at runtime that the resources cannot be located.
I did write a wrapper executable for ILMerge where I pass in the startup exe name for the project I want to merge, and an output exe name, and then it reflects the dependent assemblies and calls ILMerge wi... | [
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I want to create a function that performs a function passed by parameter on a set of data. How do you pass a function as a parameter in C?
**Declaration**
A prototype for a function which takes a function parameter looks like the following:
```
void func ( void (*f)(int) );
```
This states that the parameter `f` wi... | [
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-0.4600801169872284,
0.196115538477... | |
x ) {
printf("%d\n", x);
}
```
**Function Call**
When calling a function with a function parameter, the value passed must be a pointer to a function. Use the function's name (without parentheses) for this:
```
func(print);
```
would call `func`, passing the print function to it.
**Function Body**
As with any ... | [
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0.04616904631257... | |
) {
print(ctr);
}
```
Since `func`'s parameter declaration says that `f` is the name for a pointer to the desired function, we recall first that if `f` is a pointer then `*f` is the thing that `f` points to (i.e. the function `print` in this case). As a result, just replace every occurrence of print in the loop abo... | [
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In my ASP.NET User Control I'm adding some JavaScript to the `window.onload` event:
```
if (!Page.ClientScript.IsStartupScriptRegistered(this.GetType(), onloadScriptName))
Page.ClientScript.RegisterStartupScript(this.GetType(), onloadScriptName,
"window.onload = function() {myFunction();};", true);
... | [
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-0.138582... | |
with W3C-compliant browsers and with Microsoft IE.
```
if (window.addEventListener) // W3C standard
{
window.addEventListener('load', myFunction, false); // NB **not** 'onload'
}
else if (window.attachEvent) // Microsoft
{
window.attachEvent('onload', myFunction);
}
``` | [
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I have a WCF service that I have to reference from a .net 2.0 project.
I have tried to reference it using the "**add web reference**" method but it messes up the params.
For example, I have a method in the service that expects a `char[]` to be passed in, but when I add the web reference, the method expects an `int[]... | [
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0.14624924957752228,
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the architect so I've had to can it (and probably for the best too).
So I was wondering if anyone has any pointers or resources on how I can setup a *.net 2.0* project to reference a **WCF service**.
One of those instances that you need to edit the WSDL. For a start a useful tool
<http://codeplex.com/storm> | [
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I could swear I've seen people typing function headers and then hitting some key combination to auto-create function braces and insert the cursor between them like so:
```
void foo()_
```
to
```
void foo()
{
_
}
```
Is this a built-in feature?
Check out [Resharper](http://www.jetbrains.com/resharper/documenta... | [
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This should be fine seeing as the CLR hasn't actually changed?
The boxes running the C# 2.0 code **have** had .NET 3.5 rolled out.
The background is that we have a windows service (.NET 2.0 exe built with VS2005, deployed to ~150 servers) that dynamically loads assemblies (almost like plug-ins) to complete various wo... | [
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.NET 2.0, we know that works ok. However we'd like to start taking advantage of C# 3.0 language features such as LINQ and targetting the assemblies against .NET 3.5 without having to build and deploy a new version of the windows service.
C#3 and .Net 3.5 adds new assemblies, but the IL is unchanged.
This means that wi... | [
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the new assemblies for 3.5 it should all just work.
There is no new version of ASP.Net - it should still be 2.0.50727 - but you should still compile for 3.5 | [
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I'm integrating .NET support into our C++ application.
It's an old-school MFC application, with 1 extra file compiled with the "/clr" option that references a CWinFormsControl.
I'm not allowed to remove the linker flag "/NODEFAULTLIB".
(We have our own build management system, not Visual Studio's.)
This means... | [
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help smooth the process you describe, and it's a nice tool for your kitbag regardless | [
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I'm looking for a tool which can generate a [Makefile](https://en.wikipedia.org/wiki/Make_(software)#Makefile) for a C/C++ project for different compilers ([GCC](https://en.wikipedia.org/wiki/GNU_Compiler_Collection), [Microsoft Visual C++](https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B), [C++Builder](https://e... | [
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0.408120721578598,
0.08314354717731476,
-0.028246132656931... | |
Well, i've got a nice WPF book its called Sams Windows Presentation Foundation Unleashed.
I really like to read and learn with it. Are there any other WPF books you could recommend?
I've found the following books very useful:
[Windows Presentation Foundation Unleashed - Adam Nathan](https://rads.stackoverflow.com/amzn... | [
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-0.011874476447701454,
-0.0753200426697731,
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-0.7356721758842468,
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0.6314548254013062,
-0.09709606319665909,
-0.3543200790... | |
another great book for the newcomer. While it is not printed in color, it does give a great insight into how WPF works.
[Pro WPF in C# 2008 - Matthew Macdonald](https://rads.stackoverflow.com/amzn/click/com/1590599551)
This is a great reference book - one that sits on my desk and is constantly referred too. Howev... | [
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0.0719216465950... | |
there is a VB.NET version available.
[Programming WPF - Chris Sells & Ian Griffiths](https://rads.stackoverflow.com/amzn/click/com/0596510373)
Another great book - I wish this was available when I was first learning the framework.
[Application = Code + Markup - Charles Petzold](https://rads.stackoverflow.com/a... | [
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0.07531452924013138,
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-0.44319644570350647,
0.224554181098938,
-0.2705139219760895,
-0.3320232629776001,
-0.5273808240890503,
-0.13740195333957672,
0.35100629925727844,
-0.2740500867366791,
-0.1850158870220... | |
a very deep level (which is also important to get the most of the framework.
The only book I would totally avoid is:
[Professional WPF Programming - Chris Andrade et al.](https://rads.stackoverflow.com/amzn/click/com/0470041803)
While the content was Ok in this book, I just found the other books to be much clearer... | [
0.11287407577037811,
-0.17531608045101166,
0.17075449228286743,
0.3700738251209259,
-0.21790869534015656,
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0.372015118598938,
-0.117459051311... | |
Apparantly when users right-click in our WPF application, and they use the Windows Classic theme, the default ContextMenu of the TextBox (which contains Copy, Cut and Paste) has a black background.
I know this works well:
```
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http... | [
-0.07545343786478043,
0.2607426643371582,
0.4287075102329254,
-0.25984320044517517,
-0.19167117774486542,
-0.03703903779387474,
0.5806049704551697,
-0.3223971724510193,
-0.17916260659694672,
-0.222417414188385,
-0.23022472858428955,
0.7730944752693176,
-0.6016756892204285,
0.11797215789556... | |
directly in a partial trusted application. Therefor, using these commands in any Commmand of your controls will do absolutely nothing when executed.
So in essence Brads answer was almost there, it sure looked the right way i.e. no black background, but did not fix the problem.
We decided to "remove" the menu based on... | [
0.09703899174928665,
0.012039470486342907,
0.4075930416584015,
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-0.4791031777858734,
-0.12342122197151184,
0.7643047571182251,
-0.22091597318649292,
-0.0846516042947... | |
I've been raised to believe that if multiple threads can access a variable, then all reads from and writes to that variable must be protected by synchronization code, such as a "lock" statement, because the processor might switch to another thread halfway through a write.
However, I was looking through System.Web.Secu... | [
0.4368952214717865,
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get
{
Initialize();
return s_Provider;
}
}
private static void Initialize()
{
if (s_Initialized)
return;
lock(s_lock)
{ | [
0.08722361922264099,
-0.442932665348053,
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-0.24685996770858765,
0.16767518222332... | |
if (s_Initialized)
return;
// Perform initialization...
s_Initialized = true;
}
}
}
```
Why is the s\_Initialized field read outside of the lock? Couldn't another thread be trying to write to it at the same time? **Are reads and writes of variables atomic?**
For th... | [
-0.08852417767047882,
-0.01671563647687435,
0.2651313543319702,
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to the spec. :)
Partition I, Section 12.6.6 of the CLI spec states: "A conforming CLI shall guarantee that read and write access to properly aligned memory locations no larger than the native word size is atomic when all the write accesses to a location are the same size."
So that confirms that s\_Initialized will ne... | [
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reads and writes are atomic, there is a race condition with addition, subtraction, and incrementing and decrementing primitive types, since they must be read, operated on, and rewritten. The interlocked class allows you to protect these using the `CompareExchange` and `Increment` methods.
Interlocking creates a memory... | [
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0.33445262908935... | |
Given a handle of type `HWND` is it possible to confirm that the handle represents a real window?
There is a function `IsWindow` which does exactly what you asked for.
```
BOOL isRealHandle = IsWindow(unknwodnHandle);
```
Look at [this link](http://msdn.microsoft.com/en-us/library/ms633528(VS.85).aspx) for more info... | [
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I'm implementing a document server. Currently, if two users open the same document, then modify it and save the changes, the document's state will be undefined (either the first user's changes are saved permanently, or the second's). This is entirely unsatisfactory. I considered two possibilities to solve this problem:... | [
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server. If the server doesn't receive K pings in a row (K > 1) from a particular client, documents locked by this client are unlocked. If that client re-appears, documents are locked again, if someone hadn't already locked them. This could also help if the client application (running in web browser) is terminated unexp... | [
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0.5364201664924622... | |
or to select a preferred version. To optimize storage space, only document diffs should be kept (just like source control software).
What method should I choose, taking into consideration that the connection to the server might *sometimes* be slow and unresponsive? How should the parameters (ping interval, rapid succe... | [
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it, he keeps the lock. Only when he exits the document, it is unlocked and other people can edit it.
If the second user (Kate) opens the document while Bob has the lock on it, Kate will get a message saying the document is uneditable but she can read it until it the lock has been released.
So what happens when Bob a... | [
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best option. If you don't get a ping from the client for a set amount of time, this effectively means his client is not responding anymore. If this is a web application you can use javascript for the pings. The document that was last saved releases its lock and Kate can now acquire it.
A ping can contain the name of ... | [
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-0.14676995... | |
As part of our current database work, we are looking at a dealing with the process of updating databases.
A point which has been brought up recurrently, is that of dealing with system vs. user values; in our project user and system vals are stored together. For example...
We have a list of templates.
```
1, <system ... | [
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0.2061121016740799,
0.35235387086868286,
0.2774498760700226,
0.4528861939907074,
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0.0851815864443779,
-0.30845969915390015,
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-0.22824831306934357,
0.6295824646949768,
-0.3878057897090912,
-0.0725867077708244... | |
in the new system template and need to update it... The problem is how? We cannot update record using ID6 (as we may have inserted it as 9, or 999, so we have to identify the record using some other mechanism)
So, we've come to two possible solutions for this.
**In the red corner (speed)....**
-----------------------... | [
0.18599392473697662,
0.015513820573687553,
0.545780599117279,
0.4561348557472229,
0.20899924635887146,
0.057177357375621796,
-0.14032188057899475,
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-0.9387437105178833,
0.10292653739452362,
0.529081404209137,
0.1137813851237297,
0.21240079402923584... | |
Disadvantage... could run out of values if we don't choose a big enough range!
**In the blue corner (scalability)...**
---------------------------------------
We store, system and user data separately, use GUIDs as Ids and merge the two lists using a view.
Advantage...Scalable..No limits w/regard to DB size.
Disad... | [
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0.10126551240682602,
0.38200849294662476,
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0.11765197664499283,
0.734301745891571,
-0.039174046367406845,
-0.03357836... | |
databases, and I've worked on some pretty big ones. Have a look [here](http://www.sql-server-performance.com/articles/per/guid_performance_p2.aspx), [here](http://weblogs.asp.net/wwright/archive/2007/11/04/the-gospel-of-the-guid-and-why-it-matters.aspx) and [here](http://weblogs.asp.net/wwright/archive/2007/11/11/gospe... | [
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0.0905877947807312,
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-0.28314924240112305,
-0.4839669466018... | |
insert them and keep a list of those on hand, so that if you need to update the template, you can just target that same GUID in your DEV, UAT and /or PRODUCTION databases without fear of overwriting other templates. The third column would come in handy though for selecting all system or user templates at will, without ... | [
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0.1798747330904007,
0.668423593044281,
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... | |
I'm starting a new project here (Windows Forms). What's the best option today for a small (free as in beer) DBMS?
I've used SQL Server Express on the past projects, but time and time again I hear people saying that the product from Oracle is faster and more powerful.
It will be used in a small company (around 20 user... | [
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0.10895778983831406,
0.35875701904296875,
-0.06239061802625656,
0.0302853882312... | |
I've heard about [IBM DB2 Express](http://en.wikipedia.org/wiki/IBM_DB2_Express-C) too, but I coudn't find any information about it. (Marketing material from IBM doesn't count :) )
Sorry, no link, but one advice. Because we support Oracle and SQL Server, I know that getting fixes for the 'normal' Oracle database, is no... | [
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0.16792911291122437,
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0.0474512353539466... | |
(Developer) database. | [
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0.37601119279... | |
I've been tasked with updating a series of applications which are performance critical VB.NET apps that essentially just monitor and return networking statistics. I've only got three requirements: *convert it to C#, make it fast, and make it stable*
One caveat is that we *"may"* migrate from a .NET platform to linux *... | [
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-0.1187949776649475... | |
since I was using MVP that I could also do the computationally expensive stuff in native C/C++ code while the GUI would be done with .NET forms, or Qt or whatever.
questions:
1. does it make sense to do a GUI in winforms but the expensive stuff in native, unmanaged C/C++ ?
2. any recommendations for a good cross pla... | [
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to. Sure, you might have to clean up what comes out of the converter, but that's way better than a by-hand conversion.
Now, as for your questions:
> 1) does it make sense to do a GUI in winforms but the expensive stuff in native, unmanaged C/C++ ?
Not yet. Wait until you've done the conversion, and then find out whe... | [
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optimize algorithms. Find out what your bottlenecks are and *then* decide how to fix them.
> 2) any recommendations for a good cross platform windowing kit that would fit for the scenario described above?
I'd be looking into [mono](http://www.mono-project.com) for sure. That's really the best you can do if you're goi... | [
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I'm currently trying to build a personal website to create a presence on the web for myself. My plan is to include content such as my resume, any projects that I have done on my own and links to open source projects that I have contributed to, and so on. However, I'm not sure which approach would be better from a persp... | [
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... | |
build a site and all of its features as I need them? Does a custom site look better in the eyes of a potential employer who might visit my site?
I've toyed with this idea in the past but I don't think it's really a good idea for a number of reasons. Firstly, there are a number of places that can take care of most of th... | [
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create your resume there and bio information etc and make it publicly viewable. The other issue with your "own site" is that if you don't update it often, the information gets stale, and worse yet, people have no reason to go back because *"nothing has changed"* - and that's not much of an *advert* for you is it?
Now ... | [
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-0.0736885294318199... | |
updated (if you post often)
2. It's not like you're *looking* for work doing it - but your (future) employer, or their developers will check it out anyway to get a better insight into your character.
3. Putting something on your resume doesn't mean you can do it. I'm not saying that you'd lie about your skills :-), but... | [
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0.07659976184368134,
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resume that is stored in linkedIn. Just an idea...
That's my two pennys worth on that - hope it helps you come to a decision! | [
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0.38428962230682373,
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-0.356245905160... | |
We have a codebase that is several years old, and all the original developers are long gone. It uses many, many threads, but with no apparent design or common architectural principles. Every developer had his own style of multithreaded programming, so some threads communicate with one another using queues, some lock da... | [
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0.062045324593782425,
0.3057529330253601,
-0.06312908977270126,
-0.4986957609653473,
0.12284991890192032,
-0.13278405368328094,
-0.355115681886673,
0.45559161901474,
-... | |
anyone know of any tools or techniques that would help to analyze and document all the interactions between threads? FWIW, the codebase is C++ on Linux, but I'd be interested to hear about tools for other environments.
---
Update
------
I appreciate the responses received so far, but I was hoping for something more ... | [
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0.011593503877520561,
0.602607786655426,
-0.20806141197681427,
0.005477391183... | |
[VTune](http://www.intel.com/cd/software/products/asmo-na/eng/239144.htm) and its thread profiling tools. It will give you both a system and a source level view of the thread behaviour. It's certainly not going to autodocument the thing for you, but should be a real help in at least visualising what is happening in dif... | [
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-0.028743499889969826,
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-0.06397359818220139,
0.213122472... | |
I have an application deployed into multiple zones and there are some issues with opening larger documents (20-50MB) across the WAN.
Currently the documents are stored in Zone 1 (Americas) and a link stored in the database to the docs.
I have heard some things about blobs in oracle and store binary in MS SQL Server... | [
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0.2438011169433593... | |
last modified each time the cached document is requested in order to determine if it needs refreshed. In this case you're only requesting a small piece of information (a date) across the WAN most of the times the document is accessed. This works best for a subset of documents that are frequently requested.
If you hav... | [
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0.3572941720485687,
... | |
data in your master database and having the slaves pull from the master. | [
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0.1551971286535263,
0.5757197141647339,
-0.2598051130771637,
0.21352437138557434... | |
I am trying to find a generic way of accessing a set of containers. I have a standard vector and list in addition to another custom list.
The custom list defines an iterator;
```
class Iterator: public std::iterator<std::forward_iterator_tag, T> {
// ...
}
Iterator begin() {
return (Iterator(root));
}
Itera... | [
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0.3847232758998871,
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0.011297815479338169,
0.6127069592475891,
-0.3551512062549591,
0.252826213836... | |
z;
iter = x.begin(); // OR
iter = y.begin(); // OR
iter = z.begin();
// ...
};
private:
std::iterator<int> iter;
};
```
But obviously these are all iterators of different types. I can assume all the containers are of the same type however.
Is there an elegant way to solve th... | [
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-0.39079856872558594,
0.30930569... | |
I understand how JS is run and I think I understand most of the DOM but I've no idea about animation. Does anybody here know of a good guide that can explain to me how it's done in Javascript?
In addition, should I even consider Javascript for animation? Should I instead be looking to learn flash?
Avoid flash, its a h... | [
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-0.24101082980632782,... | |
in the noscript case.
try [scriptaculous](http://script.aculo.us/) for your animations;
* [here's a quickie 3-line tutorial so
you can see it working](http://woork.blogspot.com/2008/01/toggle-effect-using-scriptaculous.html)
* [here's a more complete tutorial](http://www.tutorialspoint.com/script.aculo.us/index.htm)
... | [
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-0.01976701430976391,
-0.11670380830764... | |
I'm working on an app that grabs and installs a bunch of updates off an an external server, and need some help with threading. The user follows this process:
* Clicks button
* Method checks for updates, count is returned.
* If greater than 0, then ask the user if they want to install using MessageBox.Show().
* If yes,... | [
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0.4437265992164612,
-0.18616290390491486,
0.1230055913329... | |
not fully cleared from the screen because the update loop starts right after the user clicks yes (see screenshot below).
* What should I do to make the messagebox disappear instantly before the update loop starts?
* Should I be using Threads instead of BeginInvoke()?
* Should I be doing the initial update check on a s... | [
0.08068745583295822,
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-0.35180243849754333,
0.422712713479995... | |
MessageBoxDefaultButton.Button2
);
if (dlgRes == DialogResult.Yes)
{
ProcessAllUpdates(um2);
}
// Processes a bunch of items in a loop
private void ProcessAllUpdates(UpdateManager2 um2)
{
for (int i = 0; i < um2.Updates.Count; i++)
{
Update2 update = um2.Updates[i];
ProcessSingleUpdate(u... | [
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0.036823667585849... | |
update.Action.OnCompletion += Action_OnCompletion;
//synchronous
//update.Action.Run();
// async
IAsyncResult ar = this.BeginInvoke((MethodInvoker)delegate() { update.Action.Run(); });
}
```
**Screenshot**
[](htt... | [
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0.6616575717926025,
-0.7484350204467773,
-0.0170093812048... | |
will execute the update.Action.Run() function on a seperate thread allocated from the thread pool. You can then keep checking the IAsyncResult until the update is complete, querying the update object for its progress after every check (because you can't have the other thread update the progress bar/UI), then calling Ap... | [
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-0.10929202288389206,
0.738995373249054,
-0.42963147163391113,
0.051657505333423... | |
How do I write code where a company icon appears on the left side next to the URL address in the browser's address bar?
You are looking for a [Favicon](https://stackoverflow.com/questions/6642/preferred-way-to-use-favicons#6645). | [
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-0.017833212... | |
When should I **not** use the ThreadPool in .Net?
It looks like the best option is to use a ThreadPool, in which case, why is it not the only option?
What are your experiences around this?
The only reason why I wouldn't use the `ThreadPool` for cheap multithreading is if I need to…
1. interract with the method runni... | [
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0.15566179156303406,
0.4262508749961853,
-0.3473049998283386,
0.1681976318359... | |
the priority of the Thread. We can not change priority of threads in ThreadPool which is by default Normal.
> **P.S.:** The MSDN article [*"The Managed Thread Pool"*](http://msdn.microsoft.com/en-us/library/0ka9477y.aspx "The Managed Thread Pool (page on MSDN)") contains a section titled, *"When Not to Use Thread Pool... | [
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0.123383209109306... | |
neat stuff in there that may suit your needs without having to use the `ThreadPool`. | [
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-0.052511338144540... | |
Being new to Objective-C (but a long term C/++) programmer I'm looking for advice/recommendations on naming conventions for variables.
My personal preference would be to utilize a prefix for instance variables both for clarity within functions and to prevent shadowing of function parameters. However I'm a fan of prope... | [
0.3900105059146881,
0.26469752192497253,
0.018041623756289482,
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0.1761958748102188,
0.02474232390522957,
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-0.40174734592437744,
0.11769317090511322,
0.7448791861534119,
-0.21351072192192078,
0.217723473906... | |
do you deal with shadowing on function params?
```
@interface GridItem : NSObject
{
CGRect _rect;
...
}
@end
-(void) initFromRect:(CGRect)rect
{
_rect = rect;
...
}
```
Cheers!
Most Cocoa projects use underbar as a non-`IBOutlet` instance variable prefix, and use no prefix for `IBOutlet` instance ... | [
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0.13210363686084747,
0.45192191004753113,
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0.07811910659074783,
0.0024632886052131653,
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-0.31835824251174927,
-0.0606171190738678,
0.5400846600532532,
-0.4444766938686371,
0.078588068... | |
underbar (*e.g.* `_myField`) will *not* be set unless the setter is named exactly like the outlet (*e.g.* `set_myField:`), which is non-standard and gross.
Also, be aware that using properties like `self.myProp` is **not** the same as accessing instance variables. You are **sending a message** when you use a property,... | [
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-0.03059082478... | |
instance variable directly but prefix it with `self` you need to treat `self` as a pointer, like `self->myProp` which really is a C-style field access.
Finally, never use Hungarian notation when writing Cocoa code, and shy away from other prefixes like "f" and "m\_" — that will mark the code as having been written by ... | [
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-0.3349342346191406,
-0.099170997738... | |
able to pick up and understand your code, and your code will work well with all of the Cocoa features that use runtime introspection.
Here's what a window controller class might look like, using my conventions:
```
// EmployeeWindowController.h
#import <AppKit/NSWindowController.h>
@interface EmployeeWindowControlle... | [
-0.15968728065490723,
-0.25488704442977905,
0.4209339916706085,
0.3681757152080536,
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0.22241100668907166,
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-0.20451751351356506,
0.6476056575775146,
-0.3339334726333618,
0.139178588986396... | |
initWithWindowNibName:@"Employee"]) {
_employee = [employee retain];
}
return self;
}
- (void)dealloc {
[_employee release];
[super dealloc];
}
- (void)windowDidLoad {
// populates the window's controls, not necessary if using bindings
[nameField setStringValue:self.employee.name];
... | [
-0.21024084091186523,
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-0.7816982269287109,
-0.35886308550834656,
0.5757243037223816,
-0.3055484890937805,
0.0816654860... | |
a property in initializers, in `-dealloc`, and in the getter and setter for the property. | [
-0.4668446481227875,
0.11693767458200455,
0.06333938241004944,
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-0.44293785095214844,
-0.6036471724510193,
0.5255349278450012,
0.06157151609659195,
0.20984841883... | |
I have a project where I would like to generate a report export in MS Word format. The report will include images/graphs, tables, and text. What is the best way to do this? Third party tools? What are your experiences?
The answer is going to depend slightly upon if the application is running on a server or if it is run... | [
0.5011587738990784,
0.257329523563385,
0.3633480966091156,
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-0.7344343066215515,
-0.10870826244354248,
0.2724251449108124,
-0.07804067432880402,
-0.00608429638668... | |
you are working on the client machine then you have a choice of either [using Office Automation](http://msdn.microsoft.com/en-us/office/default.aspx) or using the Office Open XML format (see links below), which is supported by Microsoft Office 2000 and up either natively or through service packs. One draw back to this ... | [
0.534161388874054,
0.26108887791633606,
0.27858442068099976,
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0.41622573137283325,
-0.12147047370672226,
-0.04426187649... | |
a few good tutorials out there that can be found via Google and is fairly simple to learn. However, the Open Office XML format is fairly new so you might find the learning curve to be a bit higher.
Office Open XML Iinformation
* Office Open XML - <http://en.wikipedia.org/wiki/Office_Open_XML>
* OpenXML Developer - <h... | [
-0.16725917160511017,
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0.38995012640953064,
-0.004144046455621719,
-0.0564756... | |
The 'click sound' in question is actually a system wide preference, so I only want it to be disabled when my application has focus and then re-enable when the application closes/loses focus.
Originally, I wanted to ask this question here on stackoverflow, but I was not yet in the beta. So, after googling for the answe... | [
0.2749423086643219,
0.07582072168588638,
0.2952415943145752,
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-0.49753695726394653,
-0.36851075291633606,
0.4262351095676422,
-0.49086132645606995,
0.027988761663436... | |
/// <summary>
/// Enables or disables the web browser navigating click sound.
/// </summary>
public static bool Enabled
{
get
{
RegistryKey key = Registry.CurrentUser.OpenSubKey(@"AppEvents\Schemes\Apps\Explorer\Navigating\.Current"); | [
-0.13215303421020508,
0.18391165137290955,
0.5417271852493286,
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-0.6280372142791748,
-0.682449221611023,
0.5582654476165771,
-0.5643084645271301,
0.15835610032081... | |
string keyValue = (string)key.GetValue(null);
return String.IsNullOrEmpty(keyValue) == false && keyValue != "\"\"";
}
set
{
string keyValue; | [
-0.2201046347618103,
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-0.45825356245040894,
0.9767029285430908,
-0.3850780129432678,
0.17576995491981506,
... | |
if (value)
{
keyValue = "%SystemRoot%\\Media\\";
if (Environment.OSVersion.Version.Major == 5 && Environment.OSVersion.Version.Minor > 0)
{ | [
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-0.1504673808813095,
0.7977342009544373,
-0.0802864134311676,
0.3498746156692505,
-0.09406955540180206,
-0.012806816026568413,
-0.5858117938041687,
-0.5152296423912048,
0.6763612627983093,
-0.3841237723827362,
0.3059707283973694,... | |
// XP
keyValue += "Windows XP Start.wav";
}
else if (Environment.OSVersion.Version.Major == 6) | [
0.22989211976528168,
0.02937106415629387,
0.6451776027679443,
-0.329079270362854,
-0.1453379988670349,
-0.23154470324516296,
0.5108973383903503,
-0.23743677139282227,
-0.13159936666488647,
-0.43936750292778015,
-0.41578197479248047,
0.7715643644332886,
-0.17556804418563843,
0.0516573414206... | |
{
// Vista
keyValue += "Windows Navigation Start.wav";
}
else | [
-0.09457933157682419,
-0.1522059589624405,
0.5041409134864807,
-0.15311329066753387,
0.2501021921634674,
-0.08046746253967285,
0.4296777546405792,
0.0003090452228207141,
-0.10069170594215393,
-0.7806563973426819,
-0.2705528140068054,
0.7080098986625671,
-0.09349846839904785,
0.049455959349... | |
{
// Don't know the file name so I won't be able to re-enable it
return;
} | [
-0.14305095374584198,
0.19629909098148346,
0.0592564232647419,
-0.0828171819448471,
0.5093262791633606,
0.0779070034623146,
0.4604298174381256,
0.2447461038827896,
-0.04468204826116562,
-0.23988798260688782,
-0.3616788983345032,
0.5620943307876587,
0.08593416959047318,
0.1969171166419983,
... | |
}
else
{
keyValue = "\"\"";
} | [
-0.3586462438106537,
-0.19594120979309082,
-0.11714912205934525,
-0.3588351607322693,
0.5960859060287476,
-0.09086616337299347,
0.3011193871498108,
-0.01819932647049427,
0.2563909590244293,
-0.3199545443058014,
-0.36242589354515076,
0.9367993474006653,
-0.1297331303358078,
0.01511494629085... |
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