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  • Downside to including headers in every source file (Objective-C)

    - by Michael Waterfall
    I'm currently including my AppDelegate.h and all of my category headers into every one of my source files using the MyApp_Prefix.pch prefix header, instead of manually #importing them only where they are used. The category methods and lots of compiler #define's in my app delegate are used in lots of places in my code. Is there any down side to this? Is it just that compilation will take longer?

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  • Click to select from a list of tags in jQuery

    - by Michael Doornbos
    I'm struggling to find a tag selection UI for a rails app. Ideally it would be something like the selection here on Stackoverflow, or on Delicious or Digg. I want users to be able to select multiple tags with a single click. We're already using jQuery, so it makes sense to use something that takes advantage of that. I've used the selection ui in jQuery and I'm not thrilled about having users need to hold down ctrl to select multiple tags.

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  • PHP number range menu from array

    - by Julious
    Hello people! I'm a bit confused here. I have a php array like this Array(2010,2009,2008 ...1992) and i want to create a loop to print a menu with a four year range counting down like this 2010-2006 2005-2001 2000-1996 etc.. How can i do this Everything i tried end up in an endless loop. THnx in advance. J.

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  • sidewaysfire and twosided

    - by hanno
    I try two use sidewaysfigure from the rotating package in the twosided memoir class. The resulting figures look correct in the pdf that is generated, with the page rotated by 90 degrees. However, when I print the document (on linux, using CUPS), some of the pages with a sidewaysfigure are upside down (rotated by 180 degreeS).

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  • Multiple key presses doing different events in C#

    - by Nevik Eeirnb
    Hi, private void Form1_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.W) player1.moveUp(); if (e.KeyCode == Keys.NumPad8) player2.moveUp(); } In the above code the moveUp methods basically just increment a value. I want it so both keys can be pressed (or held down)at the same time and both events will trigger. Thanks, Nevik

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  • ORACLE:- 'SELECT ODER BY ASC' but 'USA' always first.

    - by Robert
    I have to write a drop down query for countries. But USA hould always be first. The rest of the countries are in alphabetical order I tried the following query SELECT countries_id ,countries_name FROM get_countries WHERE countries_id = 138 UNION SELECT countries_id ,countries_name FROM get_countries WHERE countries_id != 138 ORDER BY 2 ASC

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  • Postion of & to denote reference type

    - by Matt H
    I was wondering whether to put the ampersand (&) after the variable type or before the variable name. To put it simply, I want to know which one is the conventional style or the standard, or if it is entirely down to preference. int &x; or int& x;

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  • Combobox seems to reload itself

    - by developer
    Hi, I have a combo box drop down for fonts in one of the apps. Now when I click on the dropdown to see the available list of fonts, I see a flickering effect. It seems as if the combo box keeps on reloading itself or getting refreshed. Is it because it covers some of the other UI elements like textboxes when I click to expand the list, or is it some kind of known bug with WPF? Is there a workaround for this?

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  • What is the best way to observe the scroll over an element with overflow set?

    - by Phunky
    It's simple to observe the documents scroll event but I can't seem to find anything relating to the scroll of any other element with css property overflow being set? To get around this myself i've been observing mousemove which only fires while you hold down on the scrollbar but this would need to be teamed with a mouse wheel observe also to get the full effect. Could anyone point me in the right direction for a better way of implementing this?

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  • Java Applet flickers on redraw();

    - by Dan
    OK so here's my code: http://www.so.pastebin.com/08ghTkQL When I press UP, DOWN, LEFT, or RIGHT... the applet redraws itself and positions the new player... sometimes when I do this (pressing buttons), the whole java applet flickers.... how do I stop this? Thank you.

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  • when was RAII added to C++

    - by Magnus
    I recently learned about the wonderful memory management technique of RAII, which seems so much cleaner than the new/delete headache I learned in school years ago (I haven't looked at much C++ during the intervening years). I'm trying to track down when this great technique was added to C++. Was it always there and I just missed the memo? What's the oldest version of the C++ standard which supports RAII?

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  • [MSVC++] Breakpoints on a variable changing value?

    - by John
    I'm chasing a bug where a member value of an object seems to magically change, without any methods being called which modify it. No doubt something obvious but proving hard to track down. I know I can put conditional break-points in methods based on the variable value, but is it in any way possible to actually put a breakpoint on a variable itself? e.g a breakpoint which fires when x==4? I know I can put watches on, what about breakpoints?

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  • When I do ""+1 I get a String - Why

    - by steve
    Hi, Please understand firstly that I fully understand that Java will return a String when I use ""+int. What I'm really not sure about is what exactly is happening down at the memory aspect. How exactly is java performing this conversion. I mean this in a very indepth way, not 'auto boxing' or anything like that :) I'm hoping someone with a deeper understanding can explain what exactly is done.

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