Hi, I have a VC++6.0 .exe file. I want to call a method of that .exe from .Net Application. Please give the help.....more >>

Hi all, I work as a glue coder and often have to interface existing mechanisms with other platforms. Creating bridge code between command-line functionality and desktop GUIs takes up a lot of that definition, along with creating abstraction layers for older-style C code. I've been working wit...more >>

Hi, I have a DLL (created in C++/CLI), that has a public enum. For example: namespace Utilities { public enum DISTANCE_TYPE { a, b, c }; } This DLL was imported to another C++/CLI project. While I can see the DISTANCE_TYPE in the 'object browser', I am not able to acces...more >>

In my project i have a component named PTS Engine which is developed in VC++ ..Net 2003. [VC 6.0] And it is migrated to VC++.NET 2005 version. Initially this migration process has coded and tested in VC++ .NET 2005 Beta version. In beta version everything is working fine. When i tryied to run...more >>

I have a mixed mode application that uses several dlls, which most are native and my new one is mixed. My new dll uses several dependent .NET assemblies. I wanted to place these dependent .NET assemblies in a subdirectory, rather than placing them all in the main directory. I added an app c...more >>

I would be pleased if someone gives me a general idea; how I am going to do this. I am using visual C++ .NET 2003. I made a simple program using conventional C++ code. This program accepts data from the user, does some calculations and outputs the result back to the user using the co...more >>

Hi, This might be something stupid, but I have a couple value structs that I'm using in my CLI layer. I pass them up via callbacks to the c# layer. In the c# layer, it wants my callback methods to have the agurment type as ValueType, rather then the actual type, am I missing something? ...more >>

Hi all, I have a DLL that I need to access. I've managed to load it and unload it successfully. The compiler is happy no complaints or warning. I need to refer to a class object that was defined in the class, and I'm not sure how to go about it. I understand that if I need to call a...more >>

Using VS2005, I am trying to disable stepping into the operator new calls. What NoStepInto entry should I put into the registry? I tried "operator new=NoStepInto" but it does not seem to be working. ...more >>

How can I mix std::wstring and .NET String? I'm finding the .NET documentation frustrating. Graeme ...more >>

Hi all, my first post here. I'm using VC++ 2005 Express. How do I get the names of special folders on the local system? For example, if I want to get the desktop folder name on any version of windows I simply call GetFolderPath(Environment::SpecialFolder::desktop); I can get the arra...more >>

Hello, I am using Visual Studio-2003. I created a project to build my library. Since I am using third party libraries as well, I have specified those additional library dependencies in project as "Additional Dependencies" under Linker-Input options. Since those libraries are also in differe...more >>

Hi, After migrating my application from VC++ 6.0 to VC++ 2005, I receive the error C2593 'operator +=' is ambiguous. It refers to the following line: Name += pManager->GetAgentName(); where Name is a string and GetAgentName also returns a string. Please suggest. Regards, Arjun...more >>

I have a native C++ pointer object which I need to hold in a C# environment, initialize in the C++ environment and the pass between the C# and C++ environments. Which is the data structure to use? I have tried to use an IntPtr in C#, send it through C++/CLI as a System::IntPtr and convert it t...more >>

How can a member of an enum type, like typedef enum tagMPEG4Mode { None = 0, Divx = 1, Microsoft = 2, } MPEG4Mode; collide with a namespace, like Microsoft ? These are both third party libraries - how can I solve the name collission?...more >>

Hello, My application is using a Dll loaded with the function "LoadLibrary(<NameOfTheDll>)" In the dll there is the following fonction : char * GetMessageError(int Error) { char * pMessageError; CString ErrorMessage; (...)// filling of Error message pMessageError= new ch...more >>

Before I state the problem, I just want to let the readers know, I am knew to C++\CLI and interop so please forgive any newbie questions. I have a huge C library which I want to be able to use in a .NET application and thus am looking into writing a managed C++ wrapper for in vs2005. Furtherm...more >>

I'm puzzled about the behaviour of fopen with the ccs= options. The table below iswhat I'm seeing. I am opening a file with the fopen option shown, then writing to it with fputws. What I want to happen it to read either Ascii or Unicode files as Unicode, but to write the files as Unicode whe...more >>

Hi sir, Good afternoon, I am working on winamp general purpose pluggin "gen_whatsplaying " project downloaded from the site www.schaffrath.net I compiled and build the project successfully using platform SDK Feb 2003 and Speech SDK5.1. Now the winamp plugins "gen_whatsplaying" interface s...more >>

Hi, I have a problem where our app when compiled in VS2005 runs about 50% the speed it attains in VS2003. This is an unmanaged C++ app. I have tried most combinations of the optimization and language settings with little change in run speed. I compared the generated native code in var...more >>

I have an application that will be used on both XP and Vista. One of the things this application needs to do is determine the exact operating system it is on. To get the correct "flavor" of Vista that might be running, there is a new function in Kernel32.dll called GetProductInfo(). The probl...more >>

Hi, I have an interesting issue, well, it's not really an issue, but I'd like to understand the mechanics of what's going on. I have a file, in CLI, which has a class declared, and a static fuction. Because the class is declared globally, I declare it as static. Is a function with a names...more >>

What's the CLI equivalent of the empty catch? i.e. try{} catch {} ...more >>

Hi all, I'm a C newbie in a desperate need of help. My background isn't programming but engineering, so my programming skills are somewhat limited (I am able to write simple single-threaded progs in C, but hardly more than that). It just happened that my work requires me to take a program and...more >>

Hello everybody, I have problems with using atl classes inside a WinForms application. I've already posted a message here. I've tried different approaches with no success. Maybe somebody could show me a simple WinForms project that uses for example CComBstr class. PS. I'm using C++/CLI ...more >>

Hi, I am trying to convert some unmanaged code (C++) to managed code (using C++/CLI). 1) One of the functions used returns a void* which I need to cast into a handle of a managed object. Can somebody please tell me how. Actually, the function that returns a void* is a part of a MFC class ...more >>

We have a C# client (VS2005 SP1) and a C++ / CLI DLL (VS2005 SP1). The client and the dll are both in the same solution. "Enable unmanaged code debugging" option is enabled in client project. We set break points in our CPP code and notice yellow warnings with "No symbols have been loaded...more >>

Hi all, I've inhertied a managed C++ (Visual Studio 2005) application. The project apparently contains no assembly attributes (the kind of stuff that would be in an AssemblyInfo.cs file). How do I add this stuff to a managed C++ project? TIA - Bob ...more >>

I have a C++ CLI Managed DLL project which is consumed by C# clients. What is the recommended way for ensuring proper clean up of managed resources and native resources in a managed C++ class? thanks ScottM ...more >>

Crazy idea but... I think everyone could agree with the statement that the CLI standard Base Class Library is incredibly useful, not to mention the extentions by microsoft and managed directX and several other stuff that builds on top of the BCL. Now.. do you think it would be possible t...more >>

I'm trying to port a project from Linux to Windows. Currently on Linux we're using GNU Make and... of course... makefiles. Does anything exist out there to convert makefiles to vcproj files, or even nmake makefiles in at least a semi-automatic nature? I'm sure this gets asked a lot, but I ca...more >>

Hello all. Is there something similar to this in NET? CString s( "abcdef"); s.SetAt(1, 'a'); I am looking for a method in the String class but I do not see anything. Thanks in anticipation. -- Tomas...more >>

I have a native DLL which is called from a managed application. One of the calls to the DLL returns a std::vector<Cell> (by value) where Cell is a POD type, everything works fine until the function making the call to the DLL returns, at which point I get a CrtIsValidHeapPointer assertion failur...more >>

Hi all, VC8 CLI/C++ has lots of new syntaxes and changes since previous versions, and not fully compliant with ECMA-372 standard either. I got lots of compilation errors. Could anyone point me a document actually detailing VC8 CLI/C++ syntax. Many thanks...more >>

Hi, I was wondering if there is a CLI equivalent to using the this keyword to overload constructors. You know where you would do something like MyClass() : this("something") { } MyClass(String name) { } I can't seem to figure it out. Thanks in advance ...more >>

Hi, How do I fire the KeyDown event in Managed VC++? I am getting a compile error saying "event does not have a raise method". Please help. regards, T ...more >>

Hi, I'm having a problem the coping cd's etc option is missing in Media Center. It used to be available but it has just disappeared! Can anyone help. Thanks...more >>

I get the following output in vs2005: 'AllocationTest.exe': Loaded 'C:\WINDOWS\system32\msvcrt.dll', No symbols loaded. Detected memory leaks! Dumping objects -> {263} normal block at 0x00356CD8, 564 bytes long. Data: <H 5 5 5 5 > 48 A0 35 00 C8 A0 35 00 88 A0 35 00 08 A1 35 00 Objec...more >>

I have a managed C++ DLL (VC8) that I would like to statically link with MFC (it consumes both native and managed resources). What project settings must i specify to produce a managed C++ DLL that is statically linked with MFC? Is this even possible? thanks ScottM ...more >>

Is there much overhead leaving in printf calls for a release build of my NT service (VC8)? This app runs as a NT service or console app so it's nice to have the console ouput when troublshooting the application. The console only has a fixed buffer size so I guess that running as a service ...more >>

I'm trying to call my C++/CLI dll from a C# library. I gives me the error unable to find an entry point named GetA Here's my C++/CLI file: #pragma once //#ifdef WRAPPERAPI_EXPORTS //#define WRAPPER_API extern "C" __declspec(dllexport) //#else //#define WRAPPER_API extern "C" __declsp...more >>

I'm amazed at the following generated code. The environment is: VS2005 SP1 Debug mode Declarations bool different; fileVersion and MSGFILEVERSION are unsigned int different = different || header.fileVersion != MSGFILEVERSION; 00672244 movzx eax,byte ptr [different] ...more >>

I've got a project with a fair bit of mixed C++/CLI calling native code, often passing raw pointers - and I'm worrying that we may have occasions where we don't use pin_ptr when we need to. However, after a few experiments I was unable to compile code (VS2005) that casually tried to do the wro...more >>

When I run my 32 bit VC 8 DLL hosted by a managed C++ Winform APP on Win2003 32 bit with 4GB ram it runs fine. When I run the same DLL hosted under a Managed C++ ASP.NET 2.0 Webservice project (also on Win2003 bit with 4GM ram, the DLL fails). If i downgrade the box from 4GB of RAM to 2GB of...more >>

Hi, I am trying to convert a set of classes written in VC++ 6.0 to a .DLL file using VC++ .NET (Visual Studio 2005) and C++/CLI. I made one of the classes (one at the root level) to be a 'ref' class. This class used pointer to a function. Since CLR does not support a ref class to have a poi...more >>

Hello, I'm trying to use a string type variable inside a class. I can do this fine with no problems when the class is inside a cpp file simply by adding #include <string>. However, my program has the class specification in a header file and the functions in a cpp file, for better organisatio...more >>

I apologize if this question has been asked before (I imagine it has). But, I'd like a definitive response. Is it possible using C++/CLI to allocate a (normally) managed reference type on the native heap? That is, instead of using gcnew, and being subject to garabage collection, could I u...more >>

On "some client's computer" the folowing C# code: == XmlDocument doc = new XmlDocument(); .... doc.Save(Application.LocalUserAppDataPath + "config.config"); == throw the following error: == Exception : System.IO.IOException Message : Unknown error "-1". Stack : at System.IO.__Er...more >>

Hello, I want to give multiple native classes (in different mixed mode dlls) access to a managed output window (for error messages). Therefore I wrote a native singleton with __declspec (dllexport). I get the following compiler errors: Error 224 error C3389: __declspec(dllexport) cannot be...more >>

I'm trying to deploy an application having a couple of dlls. One of those 2 dll's makes user of MSCV80(d).dll, namely the latest version (the one with Visual Studio SP1, version 8.0.50727.762). The problem is that the correct dll does not normally exist on a win XP or server 2003 system unles...more >>