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• Does this keyword exist? When an overriding method needs to call the parent

  - by Carlos

  Often, in C# documentation, you come across a member where the description says something along the lines of "be sure to call the base method if you override this." Is there a way to ensure at compile time that one has actually called the base function?

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• What's the differenct between passing a function and the function call itself in javascript?

  - by Mingus Rude

  In the application I'm building I'm polling for a status update and I have noticed that if the call is made as follows the timeout fires continuously: setTimeout($.get("http://localhost:8080/status", function(data) { UpdateStatus(data);}), 1000); While if use a function instead the timeout fires every 1000 ms: setTimeout(function() {$.get("http://localhost:8080/status", function(data) { UpdateStatus(data);})}, 1000); Why?

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• what's the use of 0 in wait system call?

  - by Supereme

  Hi, The syntax for the wait system call is pid= wait(&var) where pid is the process id of child and var is the variable which will contain the reason for exiting child. But what happens when we use wait((int *)0)? What does it exactly mean? Thank you.

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• How to call other constructors from a constructor in c#?

  - by Blankman

  I have a constructor like: public Blah(string a, string b) { } public Blah(string a, string b, string c) { this.a =a; this.b =b; this.c =c; } How can I call the 2nd constructor from the 1st one? like: public Blah(string a, string b) { Blah(a,b, ""); }

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• javax.crypto AES encryption - Do I only need to call doFinal?

  - by Spines

  I want to do AES CBC encryption in Java. I'm using javax.crypto. After I have the Cipher initialized, do I only need to call doFinal on the clear bytes to properly encrypt it? Or do I need to do something with update? Documentation says update: Continues a multiple-part encryption or decryption operation and doFinal Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation what exactly do they mean by multiple-part encryption?

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• I can't get ExternalInterface.addCallback to work - trying to call an AS3 function from a js button

  - by Guillaume Riesen

  I'm trying to use ExternalInterface.addCallback to allow js to call an as3 method. My code is as follows: AS: ExternalInterface.addCallback("sendToActionscript", callFromJavaScript); function callFromJavaScript():void{ circle_mc.gotoAndStop("finish"); } JS: Switch to square function callToActionscript() { flashController = document.getElementById("jstoactest") flashController.sendToActionscript(); } It's not working. What am I doing wrong?

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• Is it alright to call len() in a loop's conditional statement?

  - by DormoTheNord

  In C, it is considered bad practice to call strlen like this: for ( i = 0; strlen ( str ) != foo; i++ ) { // stuff } The reason, of course, is that it is inefficient since it "counts" the characters in a string multiple times. However, in Python, I see code like this quite often: for i in range ( 0, len ( list ) ): # stuff Is this bad practice? Should I store the result of len() in a variable and use that?

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• What is the use of different types of function call in js?

  - by sparrow

  I have seen different type of js function call like function aTestFunction(param) { // function body } and also: aTestFunction = function(param) { // function body } what is the difference in above to implementaion? Also, i found that jquery/prototype js framework uses the second implementation in most cases. Is there any special reason for that? Sorry, I am a novice so this question may be silly to someone but will be helpful me if any guru out there helps me with this silly question. Thanks in advance.

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• When should we call a target using 'DependsOnTargets' and <CallTarget> ?

  - by Nam Gi VU

  At far as I know, at the moment we can call other targets from within a target by using the attribute 'DependsOnTargets' or by using the task My question is when should we use each case?

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• Import a shared object and call its funtions in C++.

  - by Eduardo

  Is it possible to import a shared object (without linking the program with it) and call any function? Thanks.

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• How early can I call kalloc in an arm linux kernel?

  - by Isaac Sutherland

  I would like to dynamically allocate memory from the machine_init function in my arm linux kernel. Calling kalloc can result in a complete failure of the system to boot. My debugging tools are very limited so I can't give much more information regarding the failure. Simply put, is it legal to call kalloc from a machine_init function in arm linux, and, if not, is there an alternative?

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• ANT: How to call target for all build.xml in subdirectories?

  - by Tazzy531

  How do you call a specific target in all build.xml located in all subdirectories using wildcards (ie not hard coding the subdirectory names)? The below answer is hardcoded. Is there a way to do it without hardcode? Similar to this question: Pass ant target to multiple build.xml files in subdirectories

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• How do I call functions inside c++ dll from lua?

  - by Brian T Hannan

  I have a dll written in C++ that is legacy code and cannot modify the source code. I want to be able to call some of the functions inside of the dll from lua. For example, I'd like to do something like this: -- My Lua File include(myCppDll.dll) function callCppFunctionFromDll() local result = myCppFunctionFromDll(arg1, arg2) --Do something with result here end Is something like this possible?

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• Javascript: How to call outer function's return from inner function?

  - by serg555

  I have such code: function allValid() { $('input').each(function(index) { if(something) { return false; } }); return true; } which always returns true as return false; affects anonymous inner function. Is there an easy way to call outer function's return?

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• Can I make a phone call from HTML on Android?

  - by Kevin

  To make a phone call via HTML on an iPhone I create an <A/> tag with an href formatted as: <a href='tel:123-555-1212'>Dial Me</a>. Is there an equivelant for HTML on Android?

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• Why is ColdFusion adding whitespace when I call a function in cfoutput?

  - by Kip

  If I do something like this in ColdFusion: <cfoutput>foo="#foo()#"</cfoutput> The resulting HTML has a space in front of it: foo=" BAR" However, if it is not a function call it works fine, i.e.: <cfset fooOut=foo() /> <cfoutput>foo="#fooOut#"</cfoutput> Gives this output: foo="BAR" Where is this extra space coming from and is there anything I can do about it?

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• How can i hack C# functions to call something else?

  - by acidzombie24

  Long story short. Clone() returns object and my code expects a cmd bc i was working with another lib but nearly the same interface. How can i use define or 'using' to have it call a function extension? I tried extending with the name Clone but it was ignored. However it does see Clone2()

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• How can I call javascript function when DIV position is change ?

  - by Jimit

  Hello everyone, I need to call javascript function when div position is changed.how can I achieve that event of changed div position ?. any idea ?

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• Not Able to call The method Asynchronously Unit Test.

  - by user43838

  Hi everyone, I am trying to call a method that passes an object called parameters. Thread t1 = new Thread(delegate() { target.DoWork(parameters); }); t1.Start(); My test is failing all the time and i am not able step through the method.. Can someone please put me in the right direction Thanks

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• When to call selectRow: on a UIPickerView that has just loaded?

  - by ragnarius

  I am trying to learn iPhone/iOS programming. I have an UIPickerView that should dispay its selected row as soon as it becomes visible (it is contained on a flippSideView). Unfortunately, the flipSideViewController's awakeFromNib is not called. It is too early to call [pickView selectRow ..] from viewWillLoad (the pickView does not exist at that time), and somewhat too late to do it in viewDidAppear. So, how can I make the pickerView display the selected row as soon it becomes visible?

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• How to call a method on UIButton in NSArray?

  - by user1792818

  I'm trying to enable a button but the button that I would enable in this function changes. I have an array of the buttons but when I use the .enabled on the array index I want it says that this doesn't work for IDs. I have used this array to set the text of each button before using: [[ButtonArray objectAtIndex: Index] setTitle:(@"blahblahblah") forState: UIControlStateNormal]; is there any way to use a similar function call to enable and disable?

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• How can I overwrite incoming call screen on Android?

  - by taxman

  Hi. As I know, it is possible to add my app's info on incoming call screen on Android. (As WhitePage's CallerId) There are posts about it but I didn't see any good sample or instructions on how to do that. Can anyone write down a good example for that? Thanks.

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• how to call a c++ file from python without using any of the spam bindings?

  - by mekasperasky

  i have this encryption algorithm written in C++ , but the values that has to be encrypted are being taken input and stored in a file by a python program . Thus how can i call this c++ program from python?

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• How can I call a Perl subroutine from Flex?

  - by NLV

  I'm new to Perl as well as Flex. I've just gone through the basic (and exciting) stuff in both of them. I just want to call a Perl subroutine from Flex. Is it possible? If so how?

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• Can can I call a function in the same Erlang Parameterised module?

  - by Zubair

  I have a paramterised module in Erlang in which I wish to call a function A from within function B of the same parameterised module. How can I do this?

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