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• How to catch Keyboard and mouse events?

  - by Alexey Malistov

  I want to create an application. This application has to do something when a user presses special keys on keyboard or/and uses scroll wheel. This application is a service. It has no windows. I want to catch any keyboard or mouse events which were designed with other applications. For example, you are watching TV by 3rd party application. If you press Ctrl + Shift and use scroll wheel my application changes the volume. I use Windows 7 x64 and Visual Studio 2008.

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• Converting from ANSI to Unicode

  - by Rayne

  Hi all, I'm using Visual Studio .NET 2003, and I'm trying to convert a program written in purely ANSI characters to be independent of Unicode/Multi-byte characters. The program has a callback function of pcap_loop, called "got_packet". It's defined as void got_packet(u_char *user, const struct pcap_pkthdr *header, const u_char *cpacket) { USES_CONVERSION; _TUCHAR *packet; packet = A2T(cpacket); ... } However, I get the error message error C2440: 'type cast': cannot convert from 'const u_char *' to 'ATL::CA2WEX<>' How do fix this? Thank you. Regards, Rayne

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• subreport with image not display data in crystal report asp .net vs 2005

  - by user361014

  I currently have a crystal report that generating in Visual Studio 2005 which has a sub-report. I've linked the sub-report to dataset and dataset has one table call image and it contain column system.byte[]. main report link to another dataset . main report has parameters and sub report has only image field. but when run main report display data but sub report don't display. no error message. sub report dataset not pass data to report. anyone have any idea what might be causing the sub-reports to not work??

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• C# SqlDataAdapter not populating DataSet

  - by Wesley

  I have searched the net and searched the net only to not quite find the probably I am running into. I am currently having an issue getting a SqlDataAdapter to populate a DataSet. I am running Visual Studio 2008 and the query is being sent to a local instance of SqlServer 2008. If I run the query itself in SqlServer, I do get information. Code is as follows: string theQuery = "select Password from Employees where employee_ID = '@EmplID'"; SqlDataAdapter theDataAdapter = new SqlDataAdapter(); theDataAdapter.SelectCommand = new SqlCommand(theQuery, conn); theDataAdapter.SelectCommand.Parameters.Add("@EmplID", SqlDbType.VarChar).Value = "EmployeeName"; theDataAdapter.Fill(theSet); The code to read the dataset: foreach (DataRow theRow in theSet.Tables[0].Rows) { //process row info } If there is any more info I can supply please let me know.

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• NUnit / Testdriven.Net conflicting results.

  - by panamack

  When I run this test in NUnit = Red Bar. [Test] public void ChangingValueViaPropertyDescriptorRaisesPropertyChangedNotification() { PropertyChangedEventArgs pCEventArgs = null; subjectVM.PropertyChanged += (sender, e) => { pCEventArgs = e; }; PropertyDescriptor descriptor = subjectVM.GetProperties().Find(schoolMeta.Name, false); descriptor.SetValue(null, "School's out for summer."); Assert.IsNotNull(pCEventArgs); Assert.AreEqual("School", pCEventArgs.PropertyName); } However, when I run this test from within Visual Studio with Test Driven .Net it passes. When it fails with NUnit it's because PropertyChanged is null, subjectVM is a View Model classes that inherits PropertyChanged from a base class. Am I to blame, or am I looking at a NUnit bug?

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• Why can't I publish MVC project

  - by Vnuk

  I'm having problems publishing my MVC project. When I do publish and upload everything to web server I get this: [InvalidOperationException: The view 'Index' or its master could not be found. The following locations were searched: ~/Views/Home/Index.aspx ~/Views/Home/Index.ascx ~/Views/Shared/Index.aspx ~/Views/Shared/Index.ascx] Weird thing is that Index.aspx exists in ~/Views/Home/, but IIS cannot find it there. If I copy entire project to web server and let asp.net compile it on the fly it works like a charm. My routing code: routes.MapRoute( _ "Default", _ "{controller}/{action}/{id}", _ New With {.controller = "Home", .action = "Index", .id = ""} _ ) routes.MapRoute("Root", "", New With {.controller = "Home", .action = "Index", .id =""}) I'm using IIS7 on Windows 2008 Web server. ASP.NET MVC 1.0, Visual Studio 2008. I've tried it local with IIS7 on Windows 7 - same error.

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• LockWorkStation - Compilation error - identifier not found

  - by Microkernel

  Hi All, I am writing an application in which I got to lock the computer screen (OS is Windows). My Application is in C++. For this purpose I used the LockWorkStation() API defined on msdn, http://msdn.microsoft.com/en-us/library/aa376875%28VS.85%29.aspx I have included windows.h as told but still I am getting compilation error: .\source.cpp(5) : error C3861: 'LockWorkStation': identifier not found here is a sample code thats giving error. #include <Windows.h> int main() { LockWorkStation(); return 0; } Please tell me what I am missing here :( I am using MS-Visual studio 2005. Regards.

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• Securing against dynamic linking in .NET

  - by Henri

  I want to deploy an application with a license attached. However, I want to prevent that my dll can be easily referenced in visual studio. What are the usual ways of doing this? I was thinking about ngen-ing the application to prevent this, however, then the code becomes architecture dependent. Im not targetting any other architecture/platform besides windows, however, ngen-ing the application after making a release build seems like a workaround to me. Are there any other techniques to achieve this?

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• Populating <validuser/> field in WorkItem

  - by armannvg

  Hi I've created a new WorkItem named Project that contains a field named business owner which can be any domain user. The field was created using the WorkItem XML syntax using the tag. I have a problem that only TFS valid users (as the name suggests :)) show up the the combobox in the Visual Studio form. Is there any way for me to let that box contain all domain users without having to give all users some tfs read access ? If not then what is the minimum access that I can apply in TFS that I can give to all domain users ? Or is there some other way that I can't notice ?

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• Imitate database in C

  - by Mohit Deshpande

  I am fairly new to C. (I have good knowledge of C# [Visual Studio] and Java [Eclipse]) I want to make a program that stores information. My first instinct was to use a database like SQL Server. But I don't think that it is compatible with C. So now I have two options: Create a struct (also typedef) containing the data types. Find a way to integrate SQLite through a C header file Which option do you think is best? Or do you have another option? I am kind of leaning toward making a struct with a typedef, but could be pursuaded to change my mind.

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• Related objects in reportingviewer 10.0.0.0 give #error

  - by Bart-Jan Poirot

  In my VB.net apps i make use of Linq2SQL and Reportviewer with RDLC reports. With Visual Studio 2010 they upgraded this reportviewer component so you can use the newer RDL specification from 2008. Now I've a problem to show related objects. For example assume you provide an order to the datasource of the report and then you can show something like Fields!Customer.Value.Name where Customer is a related entity. I also got the error in my immediate window: *Warning: The Value expression for the textrun ‘Name_1.Paragraphs[0].TextRuns[0]’ contains an error: The specified operation is not valid. (rsRuntimeErrorInExpression)*

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• Do you have to install the REST starter kit in asp.net to access APIs?

  - by jonhobbs

  Hi, I'm currently trying to access a REST API for the first time using visual web developer 2008 express edition. Every article I have found says you have to install the WCF REST starter kit which is a .msi file, which would suggest that I have to install it on my machine and presumably our server too. My question is this. Is there a non installable version that I can use, e.g. just by dropping DLLs into the Bin directory and then using the classes contained. Or is there more to it than that and am I just getting very confused about how it works? Jon

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• What resources will help me understand the fundamentals of Relational Database Systems.

  - by Rachel

  This are few of the fundamental database questions which has always given me trouble. I have tried using google and wiki but I somehow I miss out on understanding the functionality rather than terminology. If possible would really appreciate if someone can share more insights on this questions using some visual representative examples. What is a key? A candidate key? A primary key? An alternate key? A foreign key? What is an index and how does it help your database? What are the data types available and when to use which ones?

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• Documentation concerning platform-specific macros in Linux/POSIX

  - by Nubok

  When compiling a C/C++ program under Windows using Visual Studio (or a compiler that tries to be compatible) there is a predefined macro _WIN32 (Source: http://msdn.microsoft.com/en-us/library/b0084kay.aspx) that you can use for platform-specific #ifdef-s. What I am looking for is an analogon under Linux: a macro which tells me that I am compiling for Linux/an OS that claims to be (more or less) POSIX-compatible. So I looked into gcc documentation and found this: http://gcc.gnu.org/onlinedocs/cpp/System_002dspecific-Predefined-Macros.html Applied to my program, the following macros (gcc 4.4.5 - Ubuntu 10.10) looked promising (I hope that I didn't drop an important macro): #define __USE_BSD 1 #define __unix__ 1 #define __linux 1 #define __unix 1 #define __linux__ 1 #define _POSIX_SOURCE 1 #define __STDC_HOSTED__ 1 #define __STDC_IEC_559__ 1 #define __gnu_linux__ 1 #define __USE_SVID 1 #define __USE_XOPEN2K 1 #define __USE_POSIX199506 1 #define _G_USING_THUNKS 1 #define __USE_XOPEN2K8 1 #define _BSD_SOURCE 1 #define unix 1 #define linux 1 #define __USE_POSIX 1 #define __USE_POSIX199309 1 #define __SSP__ 1 #define _SVID_SOURCE 1 #define _G_HAVE_SYS_CDEFS 1 #define __USE_POSIX_IMPLICITLY 1 Where do I find a detailed documentation of them - as to the mentioned Windows-specific macros above? Additionally I'd be interested in macros normally defined for other POSIX-compliant operating systems as *BSD etc.

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• Source Insight: Show me Enum Values

  - by JXG

  I'm programming in C and using Source Insight. I have an enum type with a lot of constants (like 100). I have debug prints that print out variable values, but they (of course) print out as integers. What I'd like to do is click on the name of an enum constant, and see its numeric value displayed somewhere. (I've seen this done in a Visual Studio plugin, so it must be possible.) That is, assume I have enum colors { ORANGE, PURPLE, PINK }; I want to click on (or select, or something) PURPLE and see the value 1 somewhere visible (ideally, the symbol window or context window, but I'm not particular). Is there an easy way to do this in Source Insight? Is there a difficult way, at least (such as writing a macro)?

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• Finding the time to program in your spare time?

  - by Omar Kooheji

  I've got about a dozen programming projects bouncing about my head, and I'd love to contribute to some open source projects, the problem I have is that having spent the entire day staring at Visual Studio and or Eclipse (Sometimes both at the same time...) the last thing I feel like doing when I go home is program. How do you build up the motivation/time to work on your own projects after work? I'm not saying that I don't enjoy programming, it's just that I enjoy other things to and it can be hard to even do something you enjoy if you've spent all day already doing it. I think that if I worked at a chocolate factory the last thing I'd want to see when I got home was a Wonka bar.... Related: How do you keep a balance between working, training, health and family?

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• sql server 2005 reporting services-- how to use multiple datasets in report

  - by larryq

  Hi everyone, I'm new to SQL Server reporting services, and am trying to decipher an existing report. It's nothing too bad, but I notice it does have two report datasets defined. (They are generated via separate stored procedures) I'm trying to figure out where and how the report datasets are linked together so the Fields collection has both sets of columns available and the report has a single rowset to traverse. Is there a section in the report layout where a joining of datasets is defined? I'm using Visual Studio 2005 to design and preview the report fwiw. Thanks for your help!

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• Size and position of the C# form.

  - by Vytas999

  I use Visual Studio .NET to create a Windows-based application. The application includes a form named CForm. CForm contains 15 controls that enable users to set basic configuration options for the application. I design these controls to dynamically adjust when users resize CForm. The controls automatically update their size and position on the form as the form is resized. The initial size of the form should be 650 x 700 pixels. If CForm is resized to be smaller then 500 x 600 pixels, the controls will not be displayed correctly. How I must ensure that users cannot resize CForm to be smaller than 500 x 600 pixels..?

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• Best Template Engine for ASP.NET MVC

  - by OnesimusUnbound

  I am exploring ASP.NET MVC and I wanted to add jQuery to make the site interactive. I used StringTemplate, ported to .Net, as my template engine to generate html and to send JSON. However, when I view the page, I could not see it. After debugging, I've realized that the $ is used by the StringTemplate to access property, etc and jQuery uses it too to manipulate the DOM. Gee, I've looked on other template engines and most of them uses the dollar sign :(. Any alternative template engine for ASP.Net MVC? I wanted to retain jQuery because MSFT announced that it will used in the Visual Studio (2008?) Thanks in Advance :)

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• MySQL, C++: Retrieving auto-increment ID

  - by Thomas Matthews

  I have a table with an auto-incrementing ID. After inserting a new row, I would like to retrieve the new ID. I found an article that used the MySQL function LAST_INSERT_ID(). The article says to create a new query and submit it. I'm using MySQL Connector C++, Windows XP and Vista, and Visual Studio 9. Here are my questions: Is there an API, for the connector, that will fetch the ID out of the record? Does the result set, after an insert/append, contain the new ID? The LAST_INSERT_ID is MySQL specific. Is there an SQL standard method for obtaining the new ID?

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• Are there any online database schema drawing tools?

  - by Pure.Krome

  Hi folks, i wish to draw up some database schemas. Eg, table 1 has zero to many rows in table 2, etc. It's purely for visual purposes (eg. no sql code, etc). Are there any online tools / website that offer this? (please don't say: Use Sql Server Database Diagrams, print screen, upload to image hosting service). thanks :) EDIT: Please take note of the keyword - ONLINE. I don't want any desktop solutions (because I already have one of these).

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• MFC resource.h command/message IDs

  - by ak

  Hi I'm working on an MFC application, that got pretty messy over years and over different teams of developers. The resource.h file, which contains all command/message mappings grew pretty big over time, and has lots of problems (like duplicate IDs). I am not proficient with MFC, so the question might sound pretty stupid... MSDN docs mention that Command IDs and Message IDs should not be less than WM_USER and WM_APP correspondingly. I saw that most of the command IDs in resource.h generated by Visual Studio begin around 100. Shouldn't this cause some interfering with MFC/Windows commands and messages, that overlap with the application defined IDs? For example, I have a command ID : #define ID_MY_ID 101 and there is a windows command that has the same ID. When MC send this command to the APP, it's handled like an application defined ID_MY_ID, and the app is taking unnecessary actions. Is it a possible scenario? Also, is there some third party tool that helps to profile the project resources?

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• Virtual Machine Performance - More RAM or More Processor?

  - by webworm

  When looking to improve Virtual Machine performance what would be better ... Increasing the available RAM or increasing the processor power? Here is my choice ... Core 2 Duo @ 2.4 GHz with 8 GB RAM and integrated graphics (Mac Book Pro 13") Core i7 @ 2.6 GHz with 4 GB RAM and 512 MB dedicated graphics (Mac Book Pro 15") I plan to run Windows x64 in the VM with SQL Server 2008, Visual Studio 2010, and SharePoint 2010. I am planning to run VMWare Fusion v3. I also didn't know if a dedicated graphics card makes a difference when using a Virtual Machine. Thank you.

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• I need to call a vbscript function from within an external javascript file :: function

  - by RadAdam

  heres what i got so far : This function is not directly in the html page , its in an external js file , 'main.js'. function createVBScript(){ var script=document.createElement('script'); script.type='text/vbscript'; script.src='vb/fldt.vbs'; document.getElementsByTagName('head')[0].appendChild(script); } the vbs file contains : <!-- // Visual basic helper required to detect Flash Player ActiveX control version information Function VBGetSwfVer() MsgBox "Hello there" End Function // --> thats all i want to do for the time being. how do i call VBGetSwfVer() from main.js ?

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• Purpose of Trigraph sequences in C++?

  - by Kirill V. Lyadvinsky

  According to C++'03 Standard 2.3/1: Before any other processing takes place, each occurrence of one of the following sequences of three characters (“trigraph sequences”) is replaced by the single character indicated in Table 1. ---------------------------------------------------------------------------- | trigraph | replacement | trigraph | replacement | trigraph | replacement | ---------------------------------------------------------------------------- | ??= | # | ??( | [ | ??< | { | | ??/ | \ | ??) | ] | ??> | } | | ??’ | ˆ | ??! | | | ??- | ˜ | ---------------------------------------------------------------------------- In real life that means that code printf( "What??!\n" ); will result in printing What| because ??! is a trigraph sequence that is replaced with the | character. My question is what purpose of using trigraphs? Is there any practical advantage of using trigraphs? UPD: In answers was mentioned that some European keyboards don't have all the punctuation characters, so non-US programmers have to use trigraphs in everyday life? UPD2: Visual Studio 2010 has trigraph support turned off by default.

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