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• Why does MPI_Init accept pointers to argc and argv?

  - by iamrohitbanga

  this is how we use MPI_Init function int main(int argc, char **argv) { MPI_Init(&argc, &argv); … } why does MPI_Init use pointers to argc and argv instead of values of argv?

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• image resize but without any compromise in DPI?????????

  - by ashofphoenix

  I want to resize a image with DPI 300 or greater.. I want it's DPI to remain intact... I have used GD library function to resize image cropped but it brings down DPI to 90!!!!!! please give a solution as my requirement involves no downsizing of DPI

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• Are there any example of multiple recursion?

  - by Yassir

  Are there any example for a recursive function that call an other one which calls the first one too ? example function1() { //do something f2(); //do something } function2() { //do something f1(); //do something }

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• C++ equivalent of PHP's pack()

  - by djzmo

  My question is simple. Is there an equivalent of PHP's pack() and unpack() function in C++? If no, is there an alternative to achieve the same goal? http://us.php.net/pack Thanks.

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• SQL Server Text type v.s. varchar data type

  - by George2

  Hello everyone, I have variable length character and want to store in SQL Server (2005) database. I want to learn some best practices about how to choose TEXT SQL type or choose VARCHAR SQL type, pros and cons in performance/footprint/function. thanks in advance, George

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• How to insert Google Adsense in a single post after the <!--More--> Tag

  - by Bob Cavezza

  I'm using wordpress, and I want to add the adsense javascript tags where the Read More tag goes in a blogpost. It's stored as <!--more--> in the database, but when you use the_content() this is automatically changed before I have the chance to use a str_replace() function. I'm looking to place an adsense tag for each post in the single.php page where the teaser ends. Has anyone been able to do this?

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• Prevent monitor from powering on

  - by concretemixer

  I'm turning off the monitor using SendMessage(HWND_BROUADCART, WM_SYSCOMMAND, SC_MONITORRPOWER, 2). That works, but the monitor turns back on when someone touches the keyboard or mouse. I tried to get rid of this using the DevicePowerSetDeviceState function with DEVICEPOWER_CLEAR_WAKEENABLED for the keyboard and mouse: it returns no error, but has no effect either. How can I prevent the monitor from powering back on in Vista and Windows7?

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• jQuer - slideToggle() and Toggle Text

  - by danit

  I have a contact form that can be hidden using .slideToggle() but I want the tab used to Toggle the form to change text based on wether the form is in view or hidden. Here is the jQuery: $("#slider").click(function() { $("#form_wrap").animate({ opacity: 1.0 },200).slideToggle(); }); I want the text of #form_wrap to read 'Hide' then 'Show'. Any help appreciated!

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• shmat() sending signal 11

  - by Sachin Chourasiya

  Please let me know when a call to shmat function can raise a signal 11. if ((shmId=shmget(shmKey, 0, 0)) <= 0) { printf( "shmget(0x%x)", shmKey); return 0; } printf( "queueOpen - Key 0x%x gives ID %d", shmKey, shmId); qh = shmat(shmId, 0, SHM_RND); I am getting a signal 11 by the code above. Please help

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• Delegates with explicit "this" pointer?

  - by Qwertie

  Is it possible to adapt a method like this function "F" class C { public void F(int i); } to a delegate like Action<C,int>? I have this vague recollection that Microsoft was working on supporting this kind of adaptation. But maybe I misremembered!

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• as3 custom functions

  - by pixeltocode

  why is it that every time moveSlide() is called, the values traced are the same? var slideWidth:Number = 680; var newPos:Number; function moveSlide () { var currentPos:Number = image_holder.x; newPos = currentPos + slideWidth; trace('currentPos ' + currentPos); trace('newPos ' + newPos); } moveSlide(); moveSlide(); moveSlide(); (image_holder is a movieclip with the images)

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• This is a valid C code but not a valid C++ code?

  - by claws

  In some library I'm using (written in C) its StorePGM(image, width, height, filename) char *image; int width, height; char *filename; { // something something } All functions are defined this way. I never seen such function definitions in my life. They seem to be valid to MSVC but when I compile it as C++ it gives errors. What is it? some kind of old version C?

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• Catching screen prints in Java

  - by Amir Rachum

  There's a class I'm working with that has a display() function that prints some information to the screen. I am not allowed to change it. Is there a way to "catch" the string it prints to the screen externally?

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• Android setContentView operation

  - by stormin986

  I've read that it's important to call setContentView() early in an activity since it builds the view objects that may be manipulated by subsequent code in onCreate(). In terms of lifecycle, does the view get drawn to screen as soon as setContentView() is called, or does it allow the onCreate() function to build/populate the information in the view objects, and wait to actually draw it after onCreate() completes? Thanks!

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• open file for reading multibale time for reading

  - by alaamh

  I want to use dup2 to read from input file and redirect it to the input of exec function. but my problem is i have three running process all of them have to open same input file but they do different jobs. what your suggest in such case? i don't know if it is possible to use "cat data.txt" to feed the input for the three other process but i don't know the way to do that.

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• Redirect Using jQuery

  - by tshauck

  Hi, So I'm using jquerymobile for an app I'm creating. I have a link that if all the validation passes I'd like to go through, but if something fails I'd like to redirect. In the jquery something like this. Since it is jquerymobile the link will be a new div on the same index.html page - if that helps. $(#link).click(function(){ if(validation_fails) link_elsewhere; else return true; }

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• How to get size and location of a control placed on a dialog in MFC?

  - by kobac

  I've got the pointer to the control with function CWnd* CWnd::GetDlgItem(int ITEM_ID) so i've got CWnd* pointer which points to the control, but simply can't find any method within CWnd class that will retrieve the size and location of a given control. Any help?

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• Should I set global vars value on startup or the first time I use them? C++

  - by extintor

  I have a few global vars I need to set the value to, should I set it into the main/winmain function? or should I set it the first time I use each var?

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• Getting an argument list for a class method

  - by Chris T

  What I'd like is for this class class Car { public function __construct(Engine $engine, Make $make, Model $model) { // stuff } } Get an array that has the types needed to construct this car (Engine, Make, Model) in the order they are needed for the constructor. I'm using this for a Dependency Injection-esque thing I'm making.

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• Getting text of html select in javascript?

  - by poo

  select.onchange = function() { this.value; } It's easy to retrieve the value but now I need the text of the selected element. How to do it?

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• How to show only few lines from a body text

  - by saquib

  Hi, I have a mySql database i want to display only 10 words from its body field which contain html codes, How i can do that, is there any php function to do that.

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• How to declare strings in enum in C

  - by Sridevi

  Hello, typedef enum testCaseId { "TC-HIW-0019" = 0, "TC-HIW-0020", "TC-HIW-0021" } testCaseId; I need my test cases to be represented in enum. In my test function, I need to switch between the test cases like: void testfunc(uint8_t no) { switch(no) { case 0: case 1: default: } } So can anyone help on how to use enum to declare strings.

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• is there a way to inject privileged methods after an object is constructed?

  - by patrickgamer

  I'm trying to write fully automated unit tests in JavaScript and I'm looking for a way to read some private variables in various JS functions. I thought I recalled a way to inject privileged members into a function/object (and found an overwhelming occurrence of "no such thing as private in JS") and yet I can't find any resources indicating how. I'm trying to read through the properties of .prototype but if there's a way, someone out here would know where to direct me faster than I'd find on my own. Thanks

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• how to get svn/cvs log record by java?

  - by Eric

  I want to cut the svn/cvs recods in pieces and then put in to database. After that i can make use of those data easily. Any java function can get out the record? and How? If possible, please provide a example. Thank you.

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• C# - OR and AND

  - by Alexry

  Newbie question. How to calculate the value of the formula A f B, where f - the boolean function OR or AND?

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