I just saw that C++/CLI 1.12 is available today: http://www.plumhall.com/C++-CLI%20draft%201.12.pdf...more >>

Can someone please help me with my code. I have a datasetX with two tables, tableA and tableB in the datasetX. The tables have a DataRelation named A_B_Relation. How can I get the BindingManagerBase to be a Currency Manager so that I can get the current position when there is movement in da...more >>

How do I assign a unique Id (like WM_USER+nnn) to a control? ...more >>

I've seen plenty of examples of updating a resource using UpdateResource(). Has anyone actually used it to add a new resource? For example, a menu resource. If so, how is it done? I'm not quit sure how to present the raw data. -- Gort, Klaatu, Barrada Nikto......more >>

I recently had to use someone's struct from a native app to receive data over Udp. The struct has a array member which looked like this: struct sensorHdr{ char sName[64]; }; When I tried to make this a managed struct by adding either the value struct or ref struct I received a comp...more >>

The *back* and *forward* butttons do not work. Anyone noticed this? I know this is a beta edition but even for a beta edition, it's hard to believe Microsoft performed any real quality control.... *Help* is pretty important. The help feature topics are very badly organized. There is ambigu...more >>

I have a simple vc++ win32 program. I have one header that has a list of all the other header files in it. In each of the .cpp files i make a referance to this main header. is there a way of getting around this, so i only have to make one header (listing all the includes i ever would like in t...more >>

Hello! I am developping a Visual C++ .NET multiple forms application, which uses FTP connection. When I use more than one form, and include the <afxinet.h> library (necessary for FTP connection), the linker errors occur: error LNK2005: "void * __cdecl operator new(unsigned int)"(??2@YAPAXI@Z...more >>

Hi there, For a quite big application, I need to get large amount of data within a static library (xxx.lib) and put them in a database (a class, say we call it CData), and then make it accessible by a few different dynamic library files (yyy.dll, …). I’ve tried to create a global class ...more >>

Hi All, I'm not a c++ programmer, but I find myself writing an extended stored procedure to call a web service. I got this part working. I want to pass parameters through the extended proc on to the web service. The params come in through a BYTE* param in here (pData): srv_paraminfo(pSrv...more >>

I have been obtaining the following error in the output window of the IDE: 1>mt.exe:general error c101008d:Failed to write the updated manifest to the resource of file "..\debug\test.exe". The process cannot access the file because it is being used by another process. 1>Project : error PRJ000...more >>

Im trying to update some code from VC 6.0 to .net 03. While building i get the c2491 error (definition of dllimport function not allowed), which i have seen posted on here but havent found a solution to. Does this mean i can only delcare a dllimport function and NEVER define it? What is t...more >>

Please suggest me a way to search for strings with wildcards in an array of character strings. ...more >>

Hi All, I am using (Visual C++ 1.52 IDE )for my MFC Application Project. I am working on an existing code base where the no of lines is around 100,000, spread across different header and cpp files. when i was trying to add a new function declaration for an existing class in a header file an...more >>

Hi, Why do I need to define a function as static (inside a .h file) to avoid the following linker error? CSession error LNK2005: "void __stdcall AllocString(unsigned short * *,unsigned int)" (?AllocString@@YGXPAPAGI@Z) already defined in stdafx.obj I know that the MSDN talks about this,...more >>

Dear Sirs, If I dynamically load assembly into the memory by Load(byte[]) how long do I have to preserve the array valid? Can it be destructed just after the load call? Thanks in advance, Boni ...more >>

Dear all, may i know how can i delete the contents of an existing file using vc++?? also, i would like to know how can i delete the whole file? thanks alot wayne -- wayne ------------------------------------------------------------------------ Posted via http://www.codecomments....more >>

I have windows form with the few TextBox controls. Under certain conditions I disable or enable this controls by setting Enable property to true or false: For example: this.m_txtIP.Enabled = false ; The controller become disabled, and I can't enter any data. The problem is that the backgr...more >>

My Vis C++ program takes forever to exit. Reason: it is dumping potential memory leaks. I like finding leaks once a month, but not every time I run. How do I turn mem leak dumping off? I looked in help, and it said leak dumping is enabled with #define CRTDBG_MAP_ALLOC ... but I do not ha...more >>

Hi all, String *A="kkkj" String *B="kkkj" Is there something easier then String *C=String::Concat(A,B) Why can't it just be as in C# C=A+B. Thanks, Boni ...more >>

Hello, I defined a class name MyClass. I would like to define an array of 4 by 8 of that class. I would like to define a pointer to the array of MyClass. I tried it with static definition: MyClass m_MyClass[4][8] ; I can not seem to find the way to define a pointer to this array?!?!? ...more >>

Is there equivalent of sscanf function in .NET? I need to parse string with network MAC address (For example like 11-22-33-44-55-66) and extract each segment into array of bytes. Can anyone advise what method/class I can use for that? I've figured out how to parse IP address: IPAddress.Pa...more >>

Several fascinating problems have occurred with attemped installations of the latest beta 2 versions of the .NET languages (including VC++). mscorsvw.exe has been using 99% of my CPU for 17 hours. More than one billion page faults have occurred. Here is an image of the Windows Task Manage...more >>

Hello. I am developing a project in managed C++ for the first time. Things were going fine up until the point I had the need to mix managed and non-managed code. More specifically, what I am trying to have is a MVC-like scheme, where the view is implemented using Windows Forms and the mod...more >>

hi thatsalok, bcos i m quite new to this forum. if possible may i request that u send the program to my email pls... my email addr is tbs_9@yahoo.com thanks alot... wayne wayne wrote: > *hi thatsalok > > thanks for the reply, but i cant find the attached Example u were > mention...more >>

Hello everybody, I am trying to use ComCompatibleVersionAttribute in my assembly. But when i compile the tlb gets generated with a new GUID. ComCompatibleVersionAttribute should help me preserve my GUIDs compatible to the version i specify, but it does not seem to work. Please help. Th...more >>

Functions exported in C++ and global variables; Hello, I'm working with a DLL project in VISUAL C++ that exports one function with the sentence __declspec(dllexport). The problem is that this function returns the value of a dll global variable, but in fact the application that imports t...more >>

I have encapsultated old C/C++ code in a mixed mode C++ module (Project 2). In my C# app (project 3) I instanciate a managed C++ class. The behaviour of the C/C++ class is defined by an interface (Project 1). I wanted to add a getter property to a multi dimension array, but the assembly loader...more >>

What are the options when keeping e.g. a list of objects in a windows forms application? The main form should be managed, since it derives from System::Windows::Forms::Form If this class needs also a list of other managed objects, one cannot use std STL. The logical answer would be STL.NET...more >>

Dear all, please help me to find a right way of writing the resolver. Thanks so much, Boni Assembly *XXX::ResolveMe(Object *sender, ResolveEventArgs *args){ ... } //In Constructor AppDomain* _ad= AppDomain::get_CurrentDomain()->AssemblyResolve += new ResolveEventHandler(Res...more >>

I need to use the constant M_PI. So, I insert the directive # include <math.h>. However when compiled, there are errors : M_PI undeclared identifier. Second, I can not use the function round(double x). Anyone could be so kind to help me. Thanks a lot ...more >>

Now I am try to transfer a memory pointer between two threads. but there has a error mesage. _CrtIsValidHeapPointer(pUserData) in dbgheap.c I lookup google and find it's seems to be the local heap in the two threads are different. so their memory that pointer point to are different. I wa...more >>

Hi, I'm a student learning C++ and my professor isn't much help, her view is if you dont get it I ain't helping you.... We are supposed to do a basic program as a logon system. I got as far as I could and came up with some errors I could not understand. Any Help would be appreciated. Us...more >>