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• Creating AVI files in OpenCV

  - by user80003

  Hello. I have been trying to create an application using OpenCV and Visual Studio 2008, to capture images from a webcam, apply a filter to them, and then write them to an AVI file. Everything works, except creating the AVI file. The problem is that it works on my computer, but it doesn't work on my colleague's computer. The reason for that (I think) is that he does not have the necessary video encoders for OpenCV to use. The cvCreateVideoWriter function does not return NULL, but I end up with a 0kb file on the disk.

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• Is there a Swing JPanel toolbar background that fits all OSs?

  - by Nazgulled

  I'm using a JPanel to have a toolbar on my background, but I don't like the look of it. Actually, there's basically no look, no background and the buttons are flat when the mouse is not over them. This is on Windows. How can I have a better look for this? Something that would fit better on Windows? Maybe something like the ToolStrip in Visual Studio? Or maybe something better that would look much better depending on the OS version (Windows, Mac, Linux)? Suggestions?

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• Developing for Windows 6.5

  - by j-t-s

  Hi All I have just got a new company mobile and would like to begin developing apps for the HTC HD2 Mobile Phone. However, when I downloaded Microsoft Windows Phone Developer Tools, it pretty much said right at the end of installation that "Setup could not install correctly", and I clicked on "more", and it said "Silverlight 4.0 could not install correctly". So, the fact that Windows Phone Dev Tools couldn't install completely was because of this Silverlight 4 that couldn't install! Has anyone had the same problems, if so, how did you resolve this issue (if you did)? And... Is there another way to develop applications for mobile phones running the Windows Operating System other than XNA and Windows Dev Tools? Even better... Could it be done simply using the current Visual Studio Express Edition I already have? Thanks All

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• open program once with multiple files as arguments from explorer

  - by Jonathan

  I have a program that works when, a file is opened with it using the right click menu in explorer. But if I select multiple files and then right click and open with my program then it opens multiple instances of my program, instead of just passing the multiple files as arguments to a single instance. The program is written in vb.net but is not a windows form, it is just a module, so I can to tick the Single instance option in the properties in Visual Studio. So how do I open multiple files from explorer context menu in a single instance.

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• How to connect these together?

  - by Biertago

  I've got a mysql database created by phpMyAdmin and I want to use it in my Qt project. I tried it on Visual Studio 2010 with an qt addon but it didn't work neither. In Qt Creator, I add: QT += sql in a .pro file and include: #include <QSqlDatabase> in the main file but there's a driver error. I don't know even where to start and each google page shows something different. I tried to look for some guide but there is nothing which concerns everything in []s.

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• TextAppearance_Holo_Large - No resource found

  - by npmaster

  When compiling my app I get the following error: android-apt-compiler: ... \res\values-v14\styles.xml:12: error: Error retrieving parent for item: No resource found that matches the given name '@android:style/TextAppearance_Holo_Large. The code it is complaining about is: <style name="Title" parent="@android:style/TextAppearance_Holo_Large"> <item name="android:layout_height">wrap_content</item> <item name="android:layout_width">wrap_content</item> </style> I checked my manifest file and I have set the SDK to: <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="17" /> Which i believe allows for using the Holo Themes. I am using Android Studio though I doubt that is the cause of the error. Any ideas what I am doing wrong?

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• ASP: using existing Crystal Report with date parameter

  - by eric3141

  I have an existing Crystal Report done in Crystal Reports version 9. I need to display it via an ASP website created in Visual Studio 2008. I have put the Crystal data source and viewer controls on the design page and configured the controls to use the crystal report but cannot seem to figure out how to pass a date to the report which uses it as an input parameter for a SQL Server 2005 stored procedure. I have tried putting a calendar control on the design page but don't know how to use it to pass the date parameter. Thanks in advance for any help. Eric

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• Windows Service is not Working.

  - by prateeksaluja20

  I had made a windows service in visual studio 2008 in C#.inside the service i had written only single line code try { System.Diagnostics.Process.Start(@"E:\Users\Sk\Desktop\category.txt"); } catch { } then i add the project insatller & change the serviceProcessInstaller1 Account proerty as local system Also change the serviceInstaller1 start type proerty as Automatic. then i build the project.it was succesfull. after that i add another project that was setup project.i had added pprimary project output & i had added the custom action as "Primary output from DemoWindowsService (Active)".then buil the setup.setup was build sucessfully.then i install the setup & then went to services start the service.service stated properly butit was not performing the task. i had checked the path is correct & also i tried to do System.Diagnostics.Process.Start(@"E:\Windows\system32\notepad.exe") but still result is same.i tried alot but not getting the ans soleasse help me to solve this problem.

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• Application Role and access second database

  - by lszk

  I have written a script to create an audit trails to my database in a second one db. So far I had no problems during tests on my dev machine from SQL Server Management Studio. Problems started to occurs when I first tried to test my triggers from my application by modyfing data in it. Using profiler I found out, that my audit trails db is not visible in sys.databases, so here lies the problem. The application using an Application Role, so as I found on MSDN, that's why I can't get access to other db on the server. I'm not a DBA. I have no experience with properly settings the security stuff, so please guide me, how can I set the setting for guest account (according to MSDN) to get access to this db? I need to have a record for this database in sys.databases and I need to be able to insert data in this database in all tables. No select, update or delete I need.

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• working with files on "start without debugging"

  - by user1472066

  I'm programming in C, and I have the following problem: I use fopen and try to read from a csv file, that is currently storred in the folder of the exe file of the program. the program works fine in debug mode and release mode, but when I try to run the program in "start without debugging" on visual studio 2008 express edition, the program stops working and windows is showing a message: "*.exe has stopped working. a program caused the program to stop working correctly. windows will close the program and notify you if a solution is available". I've tried running the program on several computers, and it's the same. another information I can give you is that if I enter the full path of the file (C:....file.csv) - then is works just fine, without any problem. I know I didn't write any code, but I hope someone will have an idea why this can happend. thanks is advance.

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• Programmatically Setting the Version of a Window's Service on the ProjectInstaller

  - by user302004

  I have a Windows Service created in Visual Studio 2005 in C#. I have a setup project and a ProjectInstaller class. I also have code to programmatically get the version from the AssemblyFileVersionAttribute. I need to figure out where I set the version that I've obtained (and where this code should go). I tried placing it in the InitializeComponent method on ProjectInstaller.Designer.cs and then appending the version to serviceInstaller1.DisplayName and serviceInstaller1.ServiceName. This didn't work and you're not supposed to modify the contents of this method. Any ideas?

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• D_WIN32_WINNT compiler warning with Boost

  - by bobber205

  Not sure what to make of this error. Added -D_WIN32_WINNT=0x0501 to Visual Studio's "Command Line" options under Project Properties but it says it doesn't recognize it and the warning still appears. I am also not sure how to add the Preprocessor Definition. :) Thanks for any help! 1Please define _WIN32_WINNT or _WIN32_WINDOWS appropriately. For example: 1- add -D_WIN32_WINNT=0x0501 to the compiler command line; or 1- add _WIN32_WINNT=0x0501 to your project's Preprocessor Definitions.

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• Remove specified text from beginning of lines only if present (C#)

  - by Zach

  I have a textbox in which the user can edit text, in a scripting language. I've figured out how to let the user comment out lines in one click, but can't seem to figure out how to uncomment properly. For example, if the box has: Normal Text is here More normal text -- Commented text -- More commented text Normal Text again --Commented Text Again So, when the user selects any amount of text and decides to uncomment, the "--" is removed from the beginning of the lines that have it. The lines without the "--" should be unaffected. In short, I want an uncomment function that performs similar to the one in Visual Studio. Is there any way to accomplish this? Thanks

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• SqlDataAdapter.Fill suddenly taking a long time

  - by WraithNath

  I have an application with a central DataTier that can execute a query to a data table using an SQLDataAdapter. None of this code has changed but now all queries are taking at least 10x as long to execute a query returning even one record. The only difference is that I have been using the app in a VM but the issue has started mid way through using the application. eg, the speed issue has not manifested itself from the start of using the VM, rather half way through. Has anyone else had an issue with the SQL Data Adapter taking a long time to fill for no reason? executing the query in Management studio it runs in less than a second. Firewalls are disabled

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• Have anyone ever create/manipulate a table application from the ground up/scratch?

  - by Darwin

  Have anyone ever create/manipulate a table application from the ground up/scratch? I want to create a table using flash AS 3. I like to have the features like to the MS Studio Web Developer option. The options are create a table, merge cells, split cell, resize columns, delete cell, delete row, delete column etc... I think this is going to be very complicated thing to do. I think the only way to do it is to build it from the ground up because I don’t think Flash has the library/component for it. I was able to create rows and columns by creating the # of rectangles listed it from the left to the right and move the next coordinate for the next row. Now the most challenging this is to manipulate it. This is the must have feature on my website and we don’t want use Javascript to create table on the server side to create the table.

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• MessageBox not shown when opened processing WM_CLOSE from taskbar thumbnail close button

  - by Katana

  Trying to put up a "Do you want to save"-dialog when trying to close window with close-button in taskbar thumbnail in windows 7(with aero peek active). Using MessageBox() when processing WM_CLOSE does not work. MessageBox won't show until you move mouse cursor outside thumbnail so aero peek is disabled. Lots of applications have this buggy behaviour so it's probably a design flaw in Windows 7, but for some programs it works (Word, Notepad, Visual Studio, ...), so I'm wondering what trick they are using(or what it takes to "exit" aero peek-mode programmatically). The small "Sound Recorder" application that comes with Windows 7 has the same problem (if you have recorded something without saving and try to close it using thumbnail close-button)...

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• Install a certficate on a device

  - by Vaccano

  I need to install a certificate on a Windows Mobile device. I have tried creating a cab file to do it, but the cab file fails to run. I have a lot of devices that are not all physically near me that I am going to need to put this on, so any manual process is just not feasible (ie, if it needs active sync then it is not going to work). Any ideas on how to do this? Visual Studio does not seem to support what I am trying to do.

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• What is the point declaring variables at the end of class?

  - by serhio

  I saw multiple examples in MSDN that uses to declare the internal fields at the end of the class. What is the point? I find this a little embarrassing, because each time Visual Studio adds a method it adds it to the end of the class, so there is need every time to move it... class A { public A(){} // Methods, Properties, etc ... private string name; } class A { private string name; public A(){} // Methods, Properties, etc ... }

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• AccountModel into a Repository and Interface

  - by Jemes

  I'm trying to separate the default AccountModel in mvc2 into a separate interface and repository. I've created an Interface and Repository and copied over the code from the AccountModel. I can register users and create accounts but in Visual Studio I'm getting the error below on the AccountController (* below). Error 1 Inconsistent accessibility: parameter type 'Admin.Models.IMembershipService' is less accessible than method 'Admin.Controllers.AccountController.AccountController(Admin.Models.IMembershipService) public class AccountController : Controller { private IMembershipService MembershipService; public AccountController() : this(new dao_MembershipService()) { } public **AccountController**(IMembershipService repository) { MembershipService = repository; } Does anyone know how I could fix the error?

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• Should I use C(99) booleans ? ( also c++ booleans in c++ ?)

  - by Roman A. Taycher

  I haven't done much c programming but when I do when I need a false I put 0 when I want true I put 1, (ex. while(1)), in other cases I use things like "while(ptr)" or "if(x)". Should I try using C99 booleans, should I recommend them to others if I'm helping people new to programming learn c basics(thinking of cs 1?? students)? I'm pretty sure the Visual Studio compiler supports c99 bools, but do a lot of projects (open source and c apps in industry) compile for c89? If I don't use C bools should I at least do something like #define TRUE 1 #define FALSE 0? Also what about c++ Booleans (for c++)?

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• Is it possible to disable auto formatting only for Html pages (not c#) on VS2010?

  - by ensecoz

  During the design html pages or aspx pages, I like to do the pure coding without Html Designer. The problem is that I like to have the following format on html page for better readability. <div> <% if (1 == 1) { %> Hello <% } else { %> World <% } %> </div> As you can guess, whenever you type '}' or ';' or etc, visual studio try to do the auto format and change to the following format <div> <% if (1 == 1) { %> Hello <% } else { %> World <% } %> </div> The question is "Is it possible to disable auto formatting just only for HTML pages on VS2010? (NOT for C# code, I still like to have auto formatting for C# pages)"

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• Executing a file not a project

  - by RPK

  I use Aptana Studio for my PHP projects. I have not learned it but just used with what I was able to do in it. Many features I still don't know how to use in it. At present, I have a HTML form and I want to write a .php script for the SEND button that it has. It is a submission script for the contact form. I want a simple PHP IDE with which I can execute a single PHP file or work with at least two or three files easily, without much mess. Please suggest a simple alternative to Aptana.

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• Problem with non-copyable classes

  - by DeadMG

  I've got some non-copyable classes. I don't invoke any of the copy operators or constructor, and this code compiles fine. But then I upgraded to Visual Studio 2010 Ultimate instead of Professional. Now the compiler is calling the copy constructor- even when the move constructor should be invoked. For example, in the following snippet: inline D3D9Mesh CreateSphere(D3D9Render& render, float radius, float slices) { D3D9Mesh retval(render); /* ... */ return std::move(retval); } Error: Cannot create copy constructor, because the class is non-copyable. However, I quite explicitly moved it.

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• What are these c++ statements doing

  - by codingguy3000

  void useproxynum ( ) { bUseProxy = true; return; }; void useacctnum ( ) { bUseProxy = false; return; }; Can anyone give me some insight into what these c++ statements are doing? There are in a header file. bUseProxy is defined above bool bUseProxy; I'm trying to figure out what useproxynum is (method call?) and I'm also trying to figure out how to find the code behind it. This is in Visual Studio 6.

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• How do I setup Eclipse to stop on the line an exception occured?

  - by Chris Persichetti

  Hi, How can I setup Eclipse to stop at the point an exception occurred. I have an Eclipse breakpoint setup to break on an exception. In the code example below, the problem I'm having is Eclipse tries to open the Integer source code. Is there any way to just have debugger break at the point shown in my code example? If I move down the stack trace, I will get to this line, it'd be nice if there's a way to do this without the "Source not found" window coming up. This can be done in Visual Studio, so it's driving me crazy not being able to find a way to do this in Eclipse. package com.test; public class QuickTest { public static void main(String[] args) { try { test(); } catch(NumberFormatException e) { System.out.println(e.getMessage()); } } private static void test() { String str = "notAnumber"; Integer.parseInt(str);//<----I want debugger to stop here } }

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