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• How to obtain the correct physical size of the monitor?

  - by KindDragon

  How can I get the size of the display in centimeters or inches? This code does not always works correctly: HDC hdc = CreateDC(_T("DISPLAY"),dd.DeviceName,NULL,NULL); int width = GetDeviceCaps(hdc, HORZSIZE); int height = GetDeviceCaps(hdc, VERTSIZE); ReleaseDC(0, hdc) Especially for multi-monitor configuration. Update: I need to get the size just for ordinary monitors, which have a constant physical size.

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• Xcode 4.2 MultiView App

  - by doc92606

  i am a fairly new iOS programmer, and I've lately been having trouble with my multi view app. Im using a paged based application with two view. I just don't seem to be able to make an IBAction that allows me to switch between each view. i tried using: [self presentModalViewController: SecondViewController animated: YES]; but i keep getting an error that says: "use of undeclared identifier 'SecondViewController'

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• How to build a tree from a list of items and their children recursively in php?

  - by k1lljoy

  I have a list of items stored in the DB, simplified schema is like this: id, parent, name I need to generate a tree structure (in a form of a multi-dimensional array) that can be infinite levels deep. Top level items would have parent = 0. Next level down would have parent equal to the the id of the parent item, fairly straight forward. What would be the best way to do this, while consuming as little resources as possible?

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• Negative margins: can they work in IE7 and IE8?

  - by Haroldo

  I'm trying to have a kind of dirty underline effect using a string of hyphens, but I want it slightly closer to the multi-line title than the line-height. Negative margin works a treat in FF but no joy in IE? <p>a multiline title here<p><p style="margin: -7px 0px 10px 0px;">-----------------------------------------------------------------------------</p>

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• muti user dungeon help

  - by mudman

  ive created a single user dungeon which i would like to create into a multi user dungoen so at least two plays can play how would i do that what code do i need to add can anyone help? i would show coding but if i do then everyone would see it and all my work will be copied as i know other students do use this site to so plz understand my situation and yes this is a homework/assignment work.

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• Update one list from another

  - by lacqui

  I have two multi-select lists in HTML - one of categories, and another of items. What I want is that, when an item selected in the "category" list, everything in the "items" list from that category is also selected. For example, if "Categories" contains "Animal", "Mineral", and "Vegetable", and "Items" contains "Dog", "Cat", "Monkey", "Diamond", "Granite", "Carrot", "Tomato": If "Animal" is selected in one list, "Dog", "Cat", and "Monkey" should be selected; any other selections should remain as they are. I'm using a Symfony PHP backend on the server, if that makes any difference

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• Decayed multidimensional array return from function

  - by paul simmons

  related to http://stackoverflow.com/questions/2520535/gcc-multi-dim-array-or-double-pointer-for-warning-free-compile , is there a way to return so-called "decayed array pointer" from a function? in summary (suppose 2 dim array) returning int (*a)[5] format rather than int** format? as far as I see, when returned int** pointer is sent to another function waiting (int*)[] parameter, it is not working correctly.

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• What are all the concurrent things [data structure, algorithm, locking mechanism] missing in .Net 3.

  - by user49767

  First time I am bit disappointed in StackOverflow cause my http://stackoverflow.com/questions/2571727/c-concurrency-vs-java-concurrency-which-is-neatly-designed-which-is-better question was closed. My intension was just trying to gather knowledge from programming guru's who worked in both the programming technologies. Rather closing this question, please help me by discussing what is good, bad, and ugly in multi-threading part in both the platforms. It is also welcome, if someone would like to compare with .Net 4.0 with JDK 6 (or JDK 7)

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• JPA - How to persist java.util.Set through JPA?

  - by Yatendra Goel

  I have a field aliases of type java.util.Set in one Entity. This Set doesn't denote any relationship to an Entity. Q1. How can I store this aliases field through JPA? Q2. How this field get stored in database? I think that for the database, this field is a multi-valued attribute.

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• Understanding java's native threads and the jvm

  - by Moev4

  I understand that the jvm is itself an application that turns the bytecode of the java executable into native machine code, but when using native threads I have some questions that I just cannot seem to answer. Does every thread create their own instance of the jvm to handle their particular execution? If not then does the jvm have to have some way to schedule which thread it will handle next, if so wouldn't this render the multi-threaded nature of java useless since only one thread can be ran at a time?

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• outllook addin threading issues

  - by Sanju

  hi i am having threading issues in my vsto project // code for function var threadUpdate = new Thread(_fun){IsBackgroud = true}; threadUpdate.Start(); threadList.add(threadUpdate); // code for progressbar Progressbar pb = new Prgressbar(){Title =@"abc"} pb.Show() it was working in perfect condition before i add wpf progress bar. as the plugin has been running as single thread can i ask how can running multi threading in outlook thanks

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• Why should I use a thread vs using a process?

  - by danmine

  I'm a newbie at this so please forgive me for my ignorance. Separating different parts of a program into different processes seems (to me) to make a more elegant program then just threading everything. In what scenario would it make sense to make things run on a thread vs separating the program into different processes? When should I use a thread? Edit: Anything on how (or if) they act differently with single core and multi core would also be helpful.

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• striking through the text...

  - by ksm

  Hi All, I need to strike through the text of a multi-line label. Is there a way to do it? Any suggestion would be greatly helpful. Thanks,

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• How to extract data out of a specific PHP array

  - by user77413

  I have a multi-dimensional array that looks like this: The base array is indexed based on category ids from my catalog. $categories[category_id] Each base array has two underlying elements: ['parent_category_id'] ['sort_order'] I want to create a function that allows us to create a list of categories for a given parent_category_id in the correct sort order. Is this possible? Technically it is the same information, but the array is constructed in a weird way to extract that information.

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• How to send mail with large size attachment using System.Net.Mail ?

  - by Preeti

  Hi, I am trying to send mail with large size attachment upto (1MB,2MB). But sending mail fails. How can i divide attachments into multi part?

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• How could I get to know the resources occupied by a .NET thread?

  - by smwikipedia

  Hi guys! I am developing a multi-thread application and one of my threads is somehow blocked by something and thus it will occupy some resource such as a file forever. Is there a way to find out which thread is being blocked and more important what resouce is being held by that thread? At last and as usual, thanks for your patience and reply. :)

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• subqueries in UPDATE SET (sql server 2005)

  - by itdebeloper

  I have a question about using subqueries in an Update statement. My example: UPDATE TRIPS SET locations = city + ', ' FROM (select Distinct city from poi where poi.trip_guid = trips.guid) Is it possible to refer to main table value (trips.guid) in subqueries? When i try to use trips.guid I get the error: "The multi-part identifier "trips.guid" could not be bound."

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• Multiline Regular Expression search and replace!

  - by Scott

  I've hit a wall. Does anybody know a good text editor that has search and replace like Notepad++ but can also do multi-line regex search and replace? Basically, I am trying to find something that can match a regex like: search oldlog\(.*\n\s+([\r\n.]*)\);replace newlog\(\1\) Any ideas?

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• Manually Increasing the Amount of CPU a Java Application Uses

  - by SkylineAddict

  I've just made a program with Eclipse that takes a really long time to execute. It's taking even longer because it's loading my CPU to 25% only (I'm assuming that is because I'm using a quad-core and the program is only using one core). Is there any way to make the program use all 4 cores to max it out? Java is supposed to be natively multi-threaded, so I don't understand why it would only use 25%.

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• Missing $ on loop variable

  - by k0re

  Hi, 1 #!/usr/bin/perl 2 use strict; 3 use warnings; 4 5 my @array = qw[a b c]; 6 foreach my($a,$b,$c) (@array) { 7 print "$a , $b , $c\n"; 8 } I receive following error: Missing $ on loop variable What is wrong? I am using: perl v5.10.1 (*) built for x86_64-linux-thread-multi

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• ID generator with local static variable - thread-safe?

  - by Poseidon

  Will the following piece of code work as expected in a multi-threaded scenario? int getUniqueID() { static int ID=0; return ++ID; } It's not necessary that the IDs to be contiguous - even if it skips a value, it's fine. Can it be said that when this function returns, the value returned will be unique across all threads?

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• How can I make the Tab key move focus out of a NSTextView?

  - by Steve McLeod

  I'm using an NSTextView to allow multi-line input. However, due to the nature of my app, users will be more comfortable moving to the next input element when they press TAB. How can I make TAB exit the NSTextView, while keeping the newline behaviour of the Enter key?

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• display selectedItems in a label

  - by Cecilia

  I need to display the selecteditems in a label I am using VB 2005 I set the selection mode to multi-extended It did work selecting only one item with the following code: me.xresultslabel.text= me.xlisttextbox.text.selectedItem.tostring But when I tried to display more than one item using the following code: me.resultlabel.text= me.xlisttextbox.text.selectedItems, I get the following string on the label: system.windows.forms.listbox+selectedobjetcollections. any help will be highly appreciate

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• paragraph with vertical line on its left

  - by Flavius

  Hi What is the easiest way to have a paragraph with one or with two vertical black lines on its left? I have something like this so far: \newcommand{\attention}[1]{\begin{huge}!\end{huge} #1} But instead of a huge exclamation mark, I want a vertical line, whether the paragraph is one- or multi-line.

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• Editing Many RichTextBoxes and TextBoxes

  - by korenani

  How do i cut,copy,paste from main menu in a multi textboxes form ? How does the menu knows to apply on the active textbox ?

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