Hi All, I discovered following issue with the VC 7.1 compiler regarding the backword compatibility. I created a dll (Redirect.dll) which exposes a function and simply writes some text (say "Hello World") to stderr stream. I also created a driver program (driver.exe) and used the exposed ...more >>

Hi, I am about to write a performance critical application and I wonder what is the best way to implement it... Should I use the standart Win32 winsock DLL or should I rather use the new managed System.Net.Sockets library... from bench-marking tests I have done I have reached to the following con...more >>

We are migrating from VC++ 6 to VC++ 2003. It is a plain, unmanaged application with both C and C++ source. When running the debug build, even outside the debugger, the memory allocation/deallocation performance appears to be orders of magnitude slower than in VC++ 6. The release build runs fine - n...more >>

Dear Friends, I am facing the problem with application graphical equalizers, the application how i should develop means it should be independent of all formats. Application should be like windows SoundEffectManager(AC97 Audio Configuration)(Equalizers) like this way i have to develop, any body pl...more >>

Hi All... I dont know whether this is the right place to post a datastructure problem or not (if not please some one redirect) I am using hashmaps in vc++. i have one particular use of the map for which the performance is very slow. Say i have 100 items in the map. The required operation i...more >>

I've found some VB code to query a domain controller to return the list of all computers in that domain. The VB code is reasonably straightforward (see below). How do I do the equivalent in C++? I've done a lot of searches and haven't come up with much useful information. Any pointers would be a...more >>

Hi, I have a question concerning the search order of DLLs and whether I can take influence on how they are loaded. The following is my situation: I have a plugin design for my application. It is stand alone if compiled as exe, a plugin if compiled as dll. If compuled as plugin I woul...more >>

Threads created using the CreateThread API used to leak memory if you accesed any crt methods within the thread proc. we used to use _beginthread to work around this issue. Does anyone know if this has been fixed ? -Vinayak...more >>

How can I do that? Would it work if I added the C++ code to the current C# project/colution? Do I have to create another assembly with a managed C++ wrapper to the old C++ code? Thanks! ...more >>

Hi all, I would like to ask you a question regarding inheritence in C#. I have a class which inherits from COM object, but then I want to pass this class to the function expecting interface which COM object is inherited from, I can't do it. See sample: C++ ATL project with COM interfac...more >>

Hello everyone In a windows forms that i have compiled and includes code like this : this->Icon = (__try_cast<System::Drawing::Icon * >(resources->GetObject(S"$this.Icon"))); i get an error like this: error C2039: 'GetObjectA' : is not a member of 'System::Resources::ResourceMa...more >>

I imported a VC++6.0 project into VC++7.1. The conversion operation makes a mess with Preprocessor Definitions, adding a "$(NoInherit)" for each file. For example: I had a DLL project in VC++6.0 where the definitions were: _UNICODE,_DEBUG,_WIN32_DCOM,WIN32,_WINDOWS,_WINDLL,_AFXDLL,_USRDLL ...more >>

Hi,=20 I have a question about to initialize a static map member like this: In the mapclass.h; class mapclass { private: static map<string, int> s_mapArray; } In the mapclass.cpp; ..... s_mapArray["Item01"] =3D 0; s_mapArray["Item02"] =3D 1; ..... I don't want to initial...more >>

Hello! I had upgraded my old ATL COM project of VC++ 6.0 to VC++.NET. Now I am getting a strange problem. My project works fine under a VB 6.0 client, but the same client code when ported to VB7 , does not work properly. While debugging I found that one particular virtual function is failin...more >>

Hi, We've got two developers working on the same mixed C++ project, using .SLN and .CPROJ project file (i.e. with identical configurations) on two different VS .NET 2003. The project files are in CVS. On one machine if you don't change anything between builds, the compiler recognises this. If ...more >>

How do I find what is causing this warning from the Linker? If I use /NODEFAULTLIB I get hundreds of undefined symbols. LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library Here is the compiler options: /Od /I "C:\DriverX4\Include" /I "....more >>

I get this message everytime I start up my computer. It says missing file C:\Program Files\Common Files\updmgr/updmgr.exe . This is the error message I recieve "This application has requested the Runtime to terminate it in an unusual way. " I have no clue of what to do. Any help would be apprec...more >>

Hi, I have an application that works fine when compiled as an executable. But it is designed to be a plugin also at the same time, by compiling it as a dll. I have a problem with resources when compiled as DLL. The error always says there is no resource file named "TESTNS.Toolbar.resourc...more >>

I have developed a decoding tool by using MFC (Dialog based) in VS .NET 2003. The program actually works, but it “hangs” during the actual decoding. When finished the window comes back again. As the actual decoding of my file could take up to 5 minutes, this is of course quite annoying. During t...more >>

I have a simple managed DLL that contains a basic cMap class. The root namespace is Map. Also in the DLL is a form for viewing it (frmViewMap), along with a toolbar, menu's and the like. I've created a second project that will use this dll. I'm trying to inherit off of cMap (Basically addi...more >>

I am unable to set focus to an IP address control residing on a Property Page, following validation of the IP when the user hits the 'Finish' button on the Property Sheet. I've unsuccessfully tried to use: CWnd::SetFocus CIPAddrCtrl::SetFieldFocus WM_SETFOCUS sent via SendDlgItemMessage (this ...more >>

Compiler: msvc 7.1 AppType: console OS: WinXP Pro I now get this "Internal Compiler Error mscl.cpp line 2701" message when I build a specific project and cannot figure out why. It was compiling fine, then I changed a resource text value and it started complaining. I changed the code but it...more >>

Hi! Is it possible to check the active solution configuration (debug, release or some user defined) at compile time using for example preprocessor directives? Best regards, Michael...more >>

hey guys just signed up and i hope to make this forum my second home :) anyways i want to go right into game programing so i installed DX9 SDK and started reading but when it come to testing some of the samples they wont compile. says: cannot find "d3dx9.h" no such file or directory the ...more >>

Hi I'm trying to print "Spiderman is amazing" twice but on the secon line, it is giving me some weird symbols. Can someone please help m fix this problem... Thanks... #include <iostream.h> main() { char mynameis[]="Spiderman is amazing"; char string[25]; char *ptr=mynameis; char *p...more >>

Hi all. I want to use in dotnet C# tabcontrol and tabpage as a wizard like CpropertySheet and CPropertyPage in VS 6.0 MFC. Is this possible ????? Help please ...more >>

Hello everyone... I am trying to make a simple and little DLL wrapper to MSXML4 libraries to make it being called from an another-platform's application. While creating the msxml4.tlh file, I figured this inside: virtual HRESULT __stdcall get_output ( /*[out,retval]*/ VARIAN...more >>

We are attempting to move a large development project into the .NET age over time. We have a large number of ATL-based COM objects in this project. Following the "Journal Poster" example provided by MS, I have converted some of my COM projects into mixed code so that there is both a .NET and C...more >>

Where can i find the Component Galery in Visual Studio .net? I just cant find in anywhere. Posted Via Usenet.com Premium Usenet Newsgroup Services ---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY ** ----------------------------...more >>

Hello group! How to load assembly from GAC using unmanaged C++? I want load assembly into memory or get path to file on disk. Alex. ...more >>

I'm having difficulty embedding a managed C++ control in Internet Explorer. I'm using the same object syntax in the html as I would for a c# control, but IE doesn't seem to find the control in the dll. Is there a different object syntax used to identify a control in a managed c++ dll? Thanks,...more >>

Hi All, I had a project which used to redirect stderr to a file in VC 6. (working fine) When I ported it to VC 7 it does not put messages in the file. Any ideas??? Thanks, Navanath ...more >>

Build.Net is a build tool that parses and builds VS.NET project files. Build.Net is run from the command line. It recursively searches a directory for VS.NET project files to build. This directory to be searched is passed in via the '-find' parameter. Any *.csproj OR *.vbproj that is found is ...more >>

Platform - Windows 2000 Professional , VC .NET 7.1 Hello, I have recently ported my source code from Visual Studio 6.0 to .NET 7.1 Previously with Visual Studio 6.0 I was using the profiler in the following way 1) Build the project with link setting- Enable Profiling as checked. 2) I ha...more >>

I have imported a legacy C++ project into a VisualStudio.NET 2003 solution. I have some new C# projects in the solution as well. I am using the managed extensions in my C++ project so that I can use the managed C# objects within my C++ project. Here's the problem: I am getting a debug assertio...more >>

Trying to create a File Preview Dialog. Have created a resource template with GroupBox (ID = stc32). File Open is displayed fine. when I add an activeX control to the dialog, I am getting this error: "The Dialog Box could not be created" error How do I add an activeX (where my selected AVI/BMp fi...more >>

Hajo, I have two dlls, both of them are compiled with /clr switch. In first dll project I have managed and unmanaged classes. One of the unmanaged I would like to use outside therefore I marked it as follows: class __declspec(dllexport) Terrain { public: void foo(){} }; In sc...more >>

Hi, is there a difference in using int or System.Int32 in C++ .NET ? Or more general using the .NET Framework type instead of the C++ types ? Performance ? What's the best practice ? Thanks Carl ...more >>

In MEC++ I could just call a function that was expecting a String __gc* even though I had a native char *. The char * automatically got marshaled to a String __gc*. In the May CTP of VS 2005 I just get a compile-time error: cannot convert parameter 1 from 'char *' to 'System::String ^' Wh...more >>

I have class that is serialized and passed over appdomain boundaries. It also includes these members: PHTTP_RESPONSE _phttpResponse; PHTTP_UNKNOWN_HEADER _pHttpUnknownHeaders; PVOID _pEntityBuffer; When I try to serialize the class I get the exception complaining that System.Reflection.Poi...more >>

How can I programatically do the equivalent of the following: cacls "C:\Program Files\test" /T /G Everyone:f ? Thanks, Viv...more >>

How do I get system time in VC++ in the .net development environment?...more >>

Hello, Try these lines of code, after create a new Win32 project, in a cpp module you choose. Define a macro and two struct like this: #define ParmEq(a,b) (fabs((double)(a-b)) <= 0.00001) struct t_point { double x; double y; } struct t_box { t_point min; t_point max; }; The...more >>

Hy! I'd like to know how can I use ref and out parameters in c++. I'd like to send (from C#) to my C++.net function a variable by reference, so I could change it in my c++.net function. And all I find about this topic is about C#. thanks - Samo ...more >>

Just getting started with Visual C++. Learning how classes work. When I select the icon to "RUN" my program to debug. The program compiles and I get an error due to syntax. I see my problem there, but when I click on "Stop Build" nothing happens. When I look at my Windows Task Manger is shows the a...more >>

I have an application that I compiled on my Windows XP box. It runs just fine and does what I want. When I try to run it on the NT or 2000 test machines I get this message: The procedure entry point IsWow64Process could not be located in the dynamic link library Kernel32.dll Is this somethin...more >>

Hello All, I've fount that if I compile the same program using gcc and vc 2003 = the same class E (see complete source bellow) has different size (on vc = it is 4 bytes bigger). Digging into this I've found that vc is reserving = a dword in the E class right before storage for virtual bas...more >>

Hello, I have a VS 2003.NET solution which consists of four c++ unmanaged legacy projects. I am adding a new project to the solution which will be in c#. What do I need to do to my c++ projects in order to call my c# modules from within c++? From what I understand, I need to convert my c++ c...more >>

Hi, I have written a dotnet class that in its constructor consumes a license from a central license pool. In the destructor it free the license again. But since I don't know when the destructor is called (that is up to the garbage collector) the object (and hence the application) consume a lic...more >>

I’m very new in C++ programming and am trying to make a decoder tool just for the purpose of learning. I started my project in VC++ 6.0, but after a change of PC, I continued my programming in VS .NET. Now I get a lot of compiling error which I don’t understand. Here is an extract from the cod...more >>