Hi all, How can I identify whether my local computer is a DNS server(using windows API + vc 2005)? Regards, Su ...more >>

C++.NET 2003 ONLY Hi all, I need to check to see that the user is using Windows 2000 or later on program startup. If not, to disable one radiobutton I have searched Google & all I get is C++ or earlier code, but nothing that compiles in my version of C++. There is a KBase article, whic...more >>

I have a resource only project/DLL, and I want to be able to add version information to it. There are make files (batch files) that create the rc file at build time and it overwrites whatever is already in there. I tried adding another resource file to store the version information, but it ...more >>

I'm new to working with mixed assemblies. All of my previous experience has been with VC++/MFC in native, unmanaged applications. When I create a mixed assembly in which one or more of the files compiles with /clr the instructions say that I need to change the switch for Debug information f...more >>

Hello, How can I implement a field similar to "System::Drawing::Point::Empty" in my own managed class? I can't figure out the syntax. MSDN documents as "static initonly Point Empty". Thanks. ...more >>

I'm trying to use an enum created in Managed c++ in a C# project. I can reach the enums name, i.e. namespace MyNS { public enum MyEnum { EOne, ETwo }; } in C++ makes me able to reach MyEnum, but not MyEnum.EOne. Why? ...more >>

What's the good C++ book you guys read? Please suggest. Thanks....more >>

Hi group, I had this with VS2003 Managed C++ pro-to-types: =================================== TimeHandler.h class TimeHandler { public: TimeHandler(void); virtual ~TimeHandler(void); // Adjust time span static bool AdjTime(TimeSpan *tsLogSpan); }; ==========================...more >>

I have an assembly written in C++/CLI that also links in non-clr Native C++ (the C++/CLI wraps the Native C++ functionality). This assembly has an in-built tracing system that needs to be initialised, amongst other things. At present the user of the assembly needs to do this prior to invoki...more >>

Are there any macros for converting between these two string types ?...more >>

How do I lock a Windows 2000 machine in Visual C++.NET 7.1? #include <windows.h> bool LockWorkStation() If I do it fails: bool LockWorkStation() { return true; } if doesn't work. Plus, I'd like to add an IF statement to check if Windows version is Windows 2000 or la...more >>

wstring StringFormat(wstring str0, ...) { wstring result = str0; va_list list; va_start(list, str0); int i=0; for(;;) { wchar_t* p=va_arg(list, wchar_t*); if(p==0) break; wstring pattern; pattern ...more >>

I have a C++ forms project that I am adding some unmanaged code to. I have a member function of the Form1 class that returns a String^ holding the text of the last win32 error. The code is failing on the call to FormatMessage. Cannot marshal 'parameter #7': Pointers cannot reference marshale...more >>

If I had two C++ classes, identical in just about every way, except that one was managed and the other wasn't, what speed benefits, or pitfalls would occur if they called native unmanaged C++ code? TIA Paul -- http://www.paullee.com ...more >>

How to convert String^ (managed) to LPCTSTR (unmanaged)?...more >>

How can I send a string between C# to managed C++ and vice versa?...more >>

using VS2005 I create a classic WIN32 project. Of course it creates without error, but when I change the project from "no CLR support" to "pure MSIL CLR support" I get tons of create errors. Is there a KB article that explains how to add CLR support to a WIN32 C ++ project? thanks, -Stev...more >>

using vs2005, the wizard created a c++ forms project for me. Now in the form1.h file I have a menu item click handler that I would like to add some win32 api code to: private: System::Void tapeToolStripMenuItem_Click( System::Object^ sender, System::EventArgs^ e) { HANDLE hTape ...more >>

Hi, I am using COM with RunningObjectTable, take in mind the following points: 1. I have a server that runs as a service this service register an object in ROT, the object should be accesible to usermode applications 2. I have a user mode application trying to get the interface pointer to t...more >>

Hi -- I'm just starting to learn about pointers and I'm stuck on something. The code that I pasted below passes a widget object to a function that changes it to a new widget object. It changes it successfully within the changer() function but once execution returns to main(), the "w" variabl...more >>

Hello, I have made a component to use in a form. I have add the component to the tools bar in Visual Studio 2005 to use in more than one project. I want to change the Icon asigned automatically by VS2005 to the component. It seems like a flower. How I can assign my own icon to the c...more >>

Hi, I would like to invite you to visit this new website dedicated to all developers for all languages. Come and participate on this project that is build to contribute to this great community of developers. Come and visit: http://www.developersplace.com Thank you....more >>

I'm having problem compiling one of my projects with VS2005. The problems arise with VS2005 (apparent?) inability to compile log4cpp. Has anyone succesfully compiled log4cpp using VS2005? Here are the errors I get: Error 1 error C2039: 'iterator_category' : is not a member of 'log4cplus...more >>

I am using the #define for _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES in my Windows MFC App, (Visual Studio 2005) and yet continue to receive compiler warnings about various CRT functions. It was my impression that setting the #define of _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES to 1 would autom...more >>

Hello! I'm writing an namespace extension in C++ using ATL. I'm dealing with files which are not on the machine where the NSE is running. I want to provide a way to copy the remote files into the local machine. I provide a DnD mechanism, by which I record the names of the files when the user s...more >>

Hello, I'm a .NET newbie but have 12 years of C++/MFC. In C++, atoi() stops converting at the first non-digit, so in this code, octet will be 192: int octet = atoi("192."); // <-- note '.' at end of this string This is great, exactly what I want. But to achieve it in C++/CLI,...more >>

Hello, Until 6 years ago I was a C++ programmer. The last 6 years I've done something else than computerprogramming, but now I'm a bit back, learning myself C#. I cannot resist sometimes to compare these two languages (as far as I can, not programming for 6 years is quitte a time), so I had ...more >>

I'm developing with VS2005 in C++, currently compiling and running in debug mode. I also have memory leak detection turned on in the run time. When I run the program, I get memory leak info in the VS Output window. I also get a file named program.exe.mem.xml created with what looks like a d...more >>

I have a VC++ / .NET 2.0 solution built using VS 2005 SP1 under XP. Everything has been working well there over the past year. I have recently starting porting the app to Windows Vista (since it currently will not execute properly there). I installed VS 2005 SP1 and the hot fix SP for V...more >>

Hello thezre, I recently installed the SP1 of visual studio, just before releasing a new version of my application. And I never though that this SP1 could change something fondamental in the final executables and DLLS, but it happened. All my C++ Dlls can not be loaded anymore on other machi...more >>

I have been trying to migrate a VS 2003 project (dll) to VS 2005. I currently use PreserveSig attribute on all COM visible properties and functions. When compiling against the 1.1 framework all is well, but against the 2.0 framework I get “fatal error C1093: API call 'DefineCustomAttribute' ...more >>

Hi I have a C++ windows program for control camera by computer(canon camera wrapper). this including some of windows and dialog. I wish summerize this code to requirement functions and build it into a dll file. some of my original code is: class CRelCtrlDlg : public CDialog { // Const...more >>

Hi, My OS is Windows XP. I mapped a drive on another machine running Windows 2000. I set the permission of the mapped drive on the Windows 2000 machine to be "accessible to everyone". On the Windows XP machine I can access the mapped drive through Explore. By one of my third party software c...more >>

I have the following situation: Assembly #1: class NativeSearchCriteria // NOTE: a native class { }; public ref class TheBaseClass { public: virtual void Get_Search_Criteria( NativeSearchCriteria& _Criteria ); }; Assembly #2: #using <assembly1.dll> public ref class MyRe...more >>