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• Activity restart on rotation Android

  - by Isaac Waller

  In my Android application, when I rotate the device (slide out the keyboard) then my activity is restarted (onCreate is called). Now, this is probably how it's supposed to be, but I do a lot of initial setting up in the onCreate method, so I need either: 1. Put all the initial setting up in another function so it's not all lost on device rotation or 2. Make it so onCreate is not called again and the layout just adjusts or 3. Limit the app to just portrait so that onCreate is not called.

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• Tricks to avoid losing motivation?

  - by AareP

  Motivation is a tricky thing to upkeep. Once I thought that ambitious projects will keep programmer motivated, and too simple tasks will hinder his motivation. Now I have plenty of experience with small and large projects, desktop/web/database programming, c++/c#/java/php languages, oop/non-oop paradigms, day-job/free-time programming.. but I still can't answer the question of motivation. Which programming tasks I like, and which don't? It seems to depend on too many variables. One thing remains constant though. It's that starting everything from scratch is always more motivating than extending some existing system. Unfortunately it's hard to use this trick in productive programming. :) So my question is, what tricks programmer can use to stay motivated? For example should we use pen and paper as much as possible, in order not to get fed up with monitor and keyboard?

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• Which Android phone to use for development...?

  - by Nikos

  Hi, I'm planning to port a couple of games from iPhone/Windows Mobile to the Android platform. The games are written in C++ so I plan to use the NDK with a thin java wrapper. I'm new to the Android platform and need some advice on which phone to buy for development. I suspect like Windows Mobile there is a level of fragmentation with different phones supporting different features (keyboard/ rotation/ screen size/ capacitive touch screen/ etc). What are the best device(s) for development on the Android platform...? They also have to be available in the UK/Europe. Thank you in advance. Nikos.

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• Telling a UITextField to become first responder while embedded in a UITableViewCell

  - by Jasarien

  I have a UITextField that is a subview of a UITableViewCell. When my view loads, I want the text field to become first responder. I have a pointer to the text field in the table cell, so to do this I am trying: [myTextField becomeFirstResponder]; This returns NO all the time, regardless of when it's called, which according to the docs means the text field refused to become first responder... What am I doing wrong? Edit: The text field properly responds to being touched. It bring up the keyboard then. It's only when telling it to become first responder programmatically that the problem happens.

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• Preventing mouse emulation events (ie click) from touch events in Mobile Safari / iPhone using Javas

  - by Jaime Cham

  In doing a single page Javascript app with interactive DOM elements I've found that the "mouseover-mousemove-mousedown-mouseup-click" sequence happens all in a bunch after the "touchstart-touchmove-touchend" sequence of events. I've also found that it is possible to prevent the "mouse*-click" events from happening by doing an "event.preventDefault()" during the touchstart event, but only then, and not during the touchmove and touchend. This is a strange design, because because it is not possible to know during the touchstart yet whether the user intents to drag or swipe or just tap/click on the item. I ended up setting up a "ignore_next_click" flag somewhere tied to a timestamp, but this is obviously not very clean. Does anybody know of a better way of doing this, or are we missing something? Note that while a "click" can be recognized as a "touchstart-touchend" sequence (ie no "touchmove"), there are certain things, such as keyboard input focus, that can only happen during a proper click event.

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• TextMate suddenly highlighting all text dark red...?

  - by AP257

  I'm using TextMate on Snow Leopard, don't know much about how it works. After I hit an unknown keyboard shortcut, it suddenly decided to highlight almost all text in my Python files dark red - making all my Python virtually unreadable! I must have accidentally pressed a shortcut - but I've no idea what I did or how to turn it off, and can't find any relevant help in the manual or form. Even just 'turn off all highlighting' would do. Anyone know how to turn this highlighting off? Bit desperate!

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• 2D collision detection and stuff with OpenGL

  - by shinjuo

  I am working on a simple 2D openGL project. It contains a main actor you can control with the keyboard arrows. I got that to work okay. What I am wanting is something that can help explain how to make another actor object follow the main actor. Maybe a tutorial on openGL. The three main things I need to learn are the actor following, collision detection, and some kind of way to create gravity. Any good books or tutorials to help get me in the right direction would be great.

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• Applescript access to last.fm app via application icon in menu bar

  - by Mark

  Hi, I want to create an Applescript to drive the last.fm player app. I'm trying to do this via last.fm application icon in the menu bar rather than using the main application menus, as this approach (I think) won't cause last.fm to switch to the foreground. The overall plan is to bind my script to a quicksilver trigger so I can stop|start|skip|love|ban|tag tracks from the keyboard. My problem is I can't find what UI element to bind the applescript to. I've used UI Browser to scan through the UI object model but it draws a blank with the last.fm icon in the menu bar. Any thoughts appreciated.

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• Modifying an old Windows program not to call exit after a keypress without source access

  - by rustyn2

  I have an older C++ Windows program that I've been asked to get run in a kiosk style environment for a student project. From the main menu, hitting ESC will exit the program, which is undesirable. In ye olden days I would have trapped the keyboard interrupt or whatever and dug around to NOOP whatever JMP or CALL was getting referenced in the case statement that likely decides all that, but on Windows everything goes through various registered event handlers, and I haven't done any windows internals work in about 10 years. Is there a good tool to breakpoint a program on certain WM_EVENT (WM_KEYDOWN being a prime target) messages or similar, so that I can narrow down where in the executable the check is made? I'm currently stepping back from various potential system calls made before the various thread cleanups and final exit calls but it seems like there has to be a better way to do this that I'm forgetting.

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• Inserting snippets from macros

  - by Matt

  In Visual Studio 2008 I had a macro which would insert a snippet and input today's date in one of the replacements. When I try to run this macro in VS 2010 it doesn't work. No matter how I try it will not insert a snippet. When I try the following command: DTE.ExecuteCommand("Edit.InvokeSnippetFromShortcut", "snippetName") This fails with error "Error HRESULT E_FAIL has been returned from a call to a COM component. I tried recording a new macro and when I pressed the keyboard shortcut for inserting a snippet (Ctrl+K, Ctrl+X) VS gave the error "The command Insert Snippet is not currently available." Did MS remove the ability to insert snippets from macros? If so this really is a shame because macros have functionality not found in snippets and vice versa.

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• What are Windows code pages?

  - by Mike D

  I'm trying to gain a basic understanding of what is meant by a Windows code page. I kind of get the feeling it's a translation between a given 8 bit value and some 'abstraction' for a given character graphic. I made the following experiment. I created a "" character literal with two versions of the letter u with an umlaut. One created using the ALT 129 (uses code page 437) value and one using the ALT 0252 (uses code page 1252) value. When I examined the literal both characters had the value 252. Is 252 the universal 8 bit abstraction for u with an umlaut? Is it the Unicode value? Aside from keyboard input are there any library routines or system calls that use code pages? For example is there a function to translate a string using a given code table (as above for the ALT 129 value)?

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• Piano Keys using GridLayout (or Something Else)

  - by yar

  I am creating a container of JComponents which will look like a piano keyboard. The black keys look like this (Groovy) def setBlackNotes(buttons) { def octaves = (int)(buttons.size() / 5) def gridLayout = new GridLayout(1, octaves*7); def blackNotePanel = new JPanel(gridLayout) this.add blackNotePanel def i = 0 octaves.times { 2.times { blackNotePanel.add buttons[i++] } blackNotePanel.add Box.createHorizontalBox() 3.times { blackNotePanel.add buttons[i++] } blackNotePanel.add Box.createHorizontalBox() } } Which is just what I need, and looks like this: but then I'd like to move this over to the right by half-a-key width. All of my attempts to move the blackNotePanel over by an arbitrary width -- wrapping it a BorderLayout, a MigLayout, etc. -- have failed or changed the spacing of the GridLayout radically. Any suggestions on how to move this over to the right by an arbitrary amount in pixels?

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• How can I reprogram a USB "easy button"?

  - by Shawn Simon

  I have a USB "easy button"- is a USB cable attached to a large button. It appears as a keyboard to the computer. When I push the button, it sends the keys Start+R and then quickly types in a pre-configured URL. I am fairly certain that the company that produces these buttons sets the URL via some sort of software over USB. How could I reprogram the button myself? What sort of software would I need? Here is a link to the website: http://www.usbsmartbuttons.com/

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• ShowWindow not working from a DLL on a 64-bit OS?

  - by Auto Roast

  I have a process that calls SetWindowsHook to catch keyboard events. In the DLL that processes the events, I conditionally call ShowWindow on the handle of the window of the process who set the hook. That code works perfectly on a 32-bit OS (XP) and as a 32-bit application on a 64-bit OS, but when compiled to 64-bit, the window is not showing. The code to make the window visible is: if (idx == passlen) { HWND h = FindWindow(NULL,windowNameToShow); ShowWindow(h,SW_SHOW); idx = 0; logger->backerase(passlen - 1); nextCharToMatch = passPointer; }

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• CHtmlView class and focus

  - by NativeByte

  I have an SDI application written in MFC. The frame is divided into 1 row and 2 columns using a splitter window. Below are details of Row and Column (R0C0 means Row#0 and Col#0) R0C0 view is a CFormView with multiple input controls like text box, combo box etc. R0C1 view is a CHtmlView that contains HTML content relavant to the control that has input focus in the R0C0 I am able to update the HTML content and also invoke Javascript functions through my MFC code. Problem: When user clicks on the R0C1, continaing CHtmlView, the focus is now on the html page. I wish to allow the user to tab out of R0C1 using the key board and return back to R0C0. Can you help with this please? The user can obviously click on the R0C0 view using mouse but we have a user who needs to use Keyboard for using this functionality. Let me know if the question is not descriptive enough and I'll simplify it further. Appreciate your time. Thanks, Byte

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• Name of the concept of designing an interface to allow expert users to become more efficient?

  - by Grundlefleck

  I'm searching for sources and further information on a particular concept in user experience design. It's not a particularly complicated concept, just that when designing user interfaces, you should both make it intuitive and simple for new users, but also provide way for users to become more efficient as they become more familiar with the application. An example could be including a prominent button for a common action for new users, but also providing a keyboard shortcut / mnemonic for expert users. However, that's just an example, another example could be providing full functionality through a GUI, but allow expert users to script the same actions. The point is it's more difficult to learn, but it makes them more efficient. I'm pretty sure there's a name for that which I can't recall, and I'm having trouble searching for sources and references on it. Name of the concept of designing an interface to allow expert users to become more efficient?

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• Microsoft Expression Web 3 clipboard bug

  - by Ghostrider

  There seems to be a rather annoying bug in MS Expression Web 3 (or perhaps an incompatibility with something else I have installed). Quite often HTML code editor would refuse to copy things into clipboard. You select some text, press Ctrl-C, Ctrl-Insert or use context menu and nothing happens. Then in 10..15 seconds it would start working again... Then again it would not work. It's rather annoying. Does anyone else have such a problem or knows how to fix it? I'm running Microsoft Expression Web 3 Service Pack 1 Version 3.0.3813.0 on Windows 7 Ultimate x64 with all latest updates and patches. I have Russian keyboard layout installed. Other than that my system is pretty much plain vanilla.

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• Screen overlay with Python, paint over an active window with background python script

  - by tvlife.admin

  Hi I'm writing a python script that runs in the background and takes screenshots of another application that is active. Then it analyses the screenshots and now it should overlay a certain image over the active app or the screen. I still need to be able to make mouse and keyboard inputs in the active app. So I need a way to overlay/paint on another window or on the screen, and still keep the other window the active window so that I can make inputs. I would prefer to do that with python in Mac OS, but if it isn't possible, other languages and even Windows (if really necessary) would also be ok. Can anybody help me? Thanks in advance!

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• Python proxy an application

  - by sharvey

  Does anyone know of a library that enables you to run an application inside some kind of sandbox, with virtual mouse and keyboard support. The use case would be to create some kind of visual test runner, that would replay all actions taken during recording and play them back. So far I found autopy, but the fact that it controls the real mouse position is problematic, because it prevents user interaction with other tools (debugger or anything) while running. Cross platform would be nice, but either windows or os x is fine. Python would be ideal but anything that you could create python bindings for would be ok too.

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• Avoiding accidentally catching KeyboardInterrupt and SystemExit in Python 2.4

  - by jrdioko

  In Python scripts, there are many cases where a keyboard interrupt (Ctrl-C) fails to kill the process because of a bare except clause somewhere in the code: try: foo() except: bar() The standard solution in Python 2.5 or higher is to catch Exception rather than using bare except clauses: try: foo() except Exception: bar() This works because, as of Python 2.5, KeyboardInterrupt and SystemExit inherit from BaseException, not Exception. However, some installations are still running Python 2.4. How can this problem be handled in versions prior to Python 2.5? (I'm going to answer this question myself, but putting it here so people searching for it can find a solution.)

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• Can I disable UIPickerView scroll sound?

  - by cocoaholic

  Hi, I want to disable the annoying clicks that the UIPickerView generates upon scrolling up and down. Is there a way to do this? I want to play short sounds for each item that the picker view lands upon. It gets ruined by the built in sound. I understand that the picker sounds can be turned off globally by switching off the keyboard sounds in iPhone/iPod settings. But is there a way to programatically do this? Any help will be much appreciated! Thanks

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• Set focus and carret position in textarea according to mouse position, as if user had clicked

  - by JeanHuguesRobert

  Once a page with a textarea is loaded, I want some textarea to have the focus immediatly if the mouse cursor is inside that textarea. This is the easy part because a onmousehover handler can set the focus. Now, how to I also set the position of the caret? I would like the caret to be where it would be if the user had clicked using the mouse to set the focus/caret. The basic use case is : User clicks on a link and waits (mouse barely moves) A page is delivered, it contains a big textarea only, full of text User types using keyboard Characters are inserted right below the mouse cursor Today the user has to wait until the caret is visible (at the top left of the textarea) and then click to move the caret before typing. Thanks!

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• How to hide the vertical scroll bar in a .NET ListView Control in Details mode

  - by Adam Haile

  I've got a ListView control in Details mode with a single column. It's on a form that is meant to only be used with the keyboard, mostly with the up/down arrows for scrolling and enter to select. So I don't really need to have the scroll bars and would just like them to not show for a cleaner look. However, when I set the ListView.Scrollable property to false, I can still move the selected item up and down, but as soon as it moves to an item not currently in view, the list won't move to show that item. I've tried using EnsureVisible to programmatically scroll the list, but it does nothing when in this mode. Is there any way to manually move the list up and down to scroll, but without having the scrollbar present?

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• What exactly happens when Complex Script Support is enabled?

  - by Ravi Chhabra

  When we click the check box "Install files for complex script and right to left languages (including Thai)" in Regional and Language settings what exactly happens? Changes to registry keys? I noticed that it installs some .fon files and keyboard dlls. Is this totally necessary if one just wish to read complex script on Windows XP? My test inside VirutalBox as Windows 7 as the host OS seems to indicate that for reading Complex Script need not be enabled. Yet that's not what all the literature on the subject says. What's going on?

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• Can I have a shell alias evaluate a history substitution command?

  - by Brandon

  I'm trying to write an alias for cd !!:1, which takes the 2nd word of the previous command, and changes to the directory of that name. For instance, if I type rails new_project cd !!:1 the second line will cd into the "new_project" directory. Since !!:1 is awkward to type (even though it's short, it requires three SHIFTed keys, on opposite sides of of the keyboard, and then an unSHIFTed version of the key that was typed twice SHIFTed), I want to just type something like cd- but since the !!:1 is evaluated on the command line, I (OBVIOUSLY) can't just do alias cd-=!!:1 or I'd be saving an alias that contained "new_project" hard-coded into it. So I tried alias cd-='!!:1' The problem with this is that the !!:1 is NEVER evaluated, and I get a message that no directory named !!:1 exists. How can I make an alias where the history substitution is evaluated AT THE TIME I ISSUE THE ALIAS COMMAND, not when I define the alias, and not never? (I've tried this in both bash and zsh, and get the same results in both.)

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