Hi Friends, Is there any way I can restrict a thread to be processed by only (one / ) certain number of CPUs in a multi CPU machine in .net framework ? I found the equivalent functions in win32 api (SetThreadIdealProcessor and GetSystemInfo). Problem is I want to use threads from within .NET fra...more >>

Just check that I got this right. I have an old DLL made in VC6 (no sources). Some of the methods have a CString as argument. No problem when using this from my VC6 application. I migrated my VC6 application --> VC7 (VS 2003) and then I get an error at link time saying something like error...more >>

Give me some advice plz, thanks. ...more >>

Hello I am migrating a VC6 C++ library to VC7 Managed C++. I need to iterate along a buffer of unsigned shorts, char-by-char: unsigned short lpData __gc[]; unsigned char __gc * itr = NULL; lpData = new unsigned short __gc [1000]; itr = __try_cast< unsigned char __gc *>( &lpData[0]...more >>

If you run this simple console program after building it on VC++ .NET 2003, you will see the error message, "Error getting initial stream position", from the attempt to use the std::ostream::tellp() method to get the output stream position of a std::stringstream. I can see no reason for this erro...more >>

Hi there, I'm trying to call very simple API function from managed C++ code BOOL Beep( DWORD dwFreq, DWORD dwDuration ); Something like this: namespace DocImage { public __gc class cBeep { public: static bool myBeep(unsigned long iFreq, unsigned long iDur) ...more >>

I have five dialog classes in one project. Is it possible for the data from I store in variable m_object from one class to be passed to another dialog class. The basic set-up of my project. When the user in dialog class ONE clicks OK, it goes to dialog TWO. I have a getfunciton that retriev...more >>

I've got a Managed C++ wrapper class that calls some functions that talk to a hardware data acquisition card, via a LIB supplied by the vendor. The calls ultimately go through to a DLL, which is installed in the System directory. Now, everything works fine on the machine that actually has the ha...more >>

I am working on a project with alot of array manipulations (sin,cos,mult). Does anyone know of a package utilizing simd (sse or mmx) to increase the processing capability. ? (particularly for the sin/cos) Gotta go fast! Thanks, Bill ...more >>

Hi all, I'm pretty new to the embeded VC++, I have version 3 and was able to develop an ARM version of my little app. However I need one for the new Dell pocket PC with the Xscale processor. How do I do that ? Do I need to get a different SDK ? If so from where can I get it ? I coul...more >>

I am trying to write a simple C testcase for a C DLL using Visual C++ 6.0. The link step fails with LINK : fatal error LNK1181: cannot open input file "c:\my.obj" I do not have any files my.* on my disk or in my project. If I look under the link tab of my project settings, I can se...more >>

Hello, I want a member in my class that will save pointer to pointer to System::Drawing::Image class. When I write on my class code: System::Drawing::Image **bmp; I get this error message: error C3160: 'bmp' : cannot declare interior __gc pointer or reference as a member of 'RCClientNS:...more >>

According to MSDN there is MAPI example code in a file SIMPLE.CLI I cannot locate this file. Can anyone direct me to the location of this? It doesn't appear to be anywhere in ftp://ftp.microsoft.com/developr/mapi/samples...more >>

Hi, I am a newbie to .Net. I have an application in running in linux, a set of .c and .h files. I also have a makefile in linux to create the executable. I want to port this to windows (.Net environment). I want my application to be portable so that I can develop in .Net environme...more >>

I'm trying to write a program that simulates mouse input. I want to be able to send mouseclick- and mousemove - messages to other applications. I tried it using the Journalplayback-Hook, but it didn't work properly because it hung itself up. the other thing why that doesnt work for mi is be...more >>

Hi, Sorry to post this, I feel like a right fool but Im under serious time pressure! Afraid I'm a newbie to managed C++ (Ive had to resort to it as Im wrapping some COM objects for C# use). Any ideas how to get this working? void Configure(int port,String* filename,int maxclients) { /...more >>

I've been trying to make a Managed C++ method that appears with the = following signature in C# : void Func ( ref bool cancelRequest )=20 .... but if I declare it in C++ as simply=20 void Func ( bool & cancelRequest ) .... it appears in the C# world as ( bool * ). I've tried ador...more >>

I've made an little mathe program, i want that the program make z.B: x ^ 1/2 (x high 1/2) how could i say that to the compiler ? please send an answer !!! ...more >>

Not sure of the best way to go about this but I have a question to ask/bug to report. #include <list> using namespace std; template< class __type > class Brian { list< __type > *vert; list< __type >::iterator end; }; Fails to compile with the offending line being list< __type >::...more >>

Hi all Sorry to bother you with what is probably a really trivial question for you C++ experts. My programming skill are pretty amateur, but I'm pretty good at VB.NET. However, I'm wanting to realise some of the speed benefits of writing some of my routines in C++ and accessing them f...more >>

Hi, I am getting a stack overflow exception. I was wondering how to to debug this situation with vc. I know that the problem is not based on (unintended or intended) recursion and the call stack at the time of the exception is rather small. Thus, there must be some variable declared on the st...more >>

Hello, After reading a few articles, http://blogs.gotdotnet.com/cbrumme/PermaLink.aspx/e55664b4-6471-48b9-b360-f0fa27ab6cc0 http://blogs.gotdotnet.com/anathan/commentview.aspx/8ec0b7b2-6290-4500-a8c7-1b6c677214cb i have the following question: __gc class C { C(){ ptr = new Unmanaged(); ...more >>

Hi, I am writing ATL Service application (XML Web service) in VS.NET C++. Are there any sample programs that accept XML as input and XML as output in the web service? Thank you very much. FS Liu ...more >>

This is a repost of a question that received no answer. In a module = DATA.CPP, when attempting to initialize a __gc array as follows: // // Begin sample ... // // // Yes, I include all of the correct assemblies, including MSCORLIB.DLL = and all of // the other .NET related paraphernal...more >>

Hi, I have been working for a few months in project that deals raw sockets. However recently, and while trying to examine the contents of the buffer used in recvfrom i was a bit confused. The buffer was allocated using malloc as it can be seen next: do { .............. char *RecvBuf...more >>

Hi, I have a project that uses the c runtime libraries a bit of opengl and nothing else. If I build the .exe for release using Visual Studio 6 I can copy the .exe onto Win98,NT and 2K/XP and run it with no probs. If I build the same .exe using Visual Studio.NET and drop the .exe onto the ab...more >>

What happened to iostream.h in VS .NET? Are we now to code: #include <iostream> instead of: #include <iostream.h> All my past code that used iostream.h will no longer compile. It seems that I have to go through all my code and replace iostream.h with iostream. Is there any good r...more >>

Hi all, I have two simple question. 1) When i build a simple mfc app using VC 7.1 it uses mfc 7.1 dll's. Is there a way i can force it to build the app with mfc42 ? bcoz i cannot use this app with out supporting dll's. If i can do it, i can just give my app and not bother about distribu...more >>

Hi, I have a copy of Visual Studio 2002 Professional. What is the best way to get hold of the new VC++ 7.1 compiler? I could upgrade to VS 2003 Pro, but expensive. Could I buy VC++ 2003 Standard, that would be cheaper but would it work with my existing VS 2002 Pro? I live in the UK not in t...more >>

I have a class that uses a string table and some dialogs, but should be reusable, ready for localization, and should not be for MFC-only applications. How do I do that without making separate dlls? ...more >>

Hi, I am using VC++ .NET 7.0. I'd like to debug my console program, using redirection of input/output for convenience. Help menu tells me it's possible to specify a file name as a command-line argument like '< file', but I couldn't make it. What have I done wrong? -- ES Kim ...more >>

Are the debug symbols for 'c:\WINNT\system32\NTDLL.DLL' available anywhere? I am debugging a multi-threaded application and it appears to get hang in NTDLL. Any help would be appreciated. Thanks! ...more >>

I've been trying a mixed mode project but I'm having speed problems. I was using a DLL and linking into it from C#. I thought I'd try and stick the C# functionality and the raw unmanaged code into a mixed mode project. It works but it's incredibly slow. All the optimization settings are the ...more >>

This bug is easier to just show than to explain I think... namespace M { template <class T> struct A { void f(int a = T::foo()) { } // line 5 }; } namespace N { struct B { static int foo() { return 5; } }; } int main() { M::A<N::B> x; x.f();...more >>

I am trying to connect to an INTRBASE database through the MS OleDb.NET provider, however I am unsure of what to use for the connection string. How can I find this out??? ...more >>

Hi! How to deploy VS C++ 7 Console application that i write (no compile error), i copy the entire release folder to client pc, but when i click the exe application, it prompt missing vc70*.dll files. I have no problem to run VS C++ 6 exe application in client side. So, did i need to use the ...more >>

I've been plagued with an "Attempted to access an unloaded AppDomain" for several months now. We have a .NET Email Component such that for some ASP.NET customers that user our DLL will get this error occasionally. Our DLL is strongly named, so I am confused as to how this could be happening. It ...more >>

Is possible to make visible on property page a private property inherited from a usercontrol ? Ex public class A : UserControl { private: __property set_Visible( bool visibled) { .... } __property bool get_Visible(); { .... } } public cl...more >>

Could the expert explain what the "typedef" here means: typedef TypeInfo* TYPEINFO []; TYPEREFINFO GetTypeInfo( String * strname ) { ... } Thanks, Charlie...more >>

what should i do to be Microsoft certificated in Visual C++ .net ...more >>

Further to my previous post on Transparency, is it possible for an ActiveX control to get the DC of its container, so it can just draw to that? ...more >>

Hi, I am building an ActiveX control, which I would like NOT to be windowless (e.g. the common dialog control in Visual Basic being an example of one that is windowless, I don't want one like this), i.e. I want it to draw and have size, etc. but be largely transparent. I can sort of mimic ...more >>

Does anyone know of any issues regarding the deployment and running of a VC++7 (non-mamanged) application built on a Windows 2003 server ?...more >>

Hello, I have spent the past four days nailing down what looks to me like a bug in the jitter. Problem ~~~~~~ When my program is run without the debugger attached in release an object is disposed of whilst execution is still in one of it's methods. I have a C# application talking to a manag...more >>

Hi, Does anyone know why starting with VS.NET 2002 (and same with 2003) it is no longer possible to browse to a directory that has "ept" as part of the path? It worked fine in Vc 6.x. My initials and user name happen to be "ept", and so I have directories with that name. It is no longer poss...more >>

I am passing back a Variant* from COM to .NET. The pointer actually holds a void**. i.e. void ** row_array; row_array = (void**)new byte[100]; row_array[0] = (void*)70186; row_array[1] = (void*)"701.86"; row_array[2] = (void*)true; row_array[2] = (void*...more >>

Hi, I've just been refactoring a managed C++ class library. The managed classes use a couple of our native dlls, and the linkage on that front appears to be OK. I do however get this error at build time: THCAL error LNK2020: unresolved token (0A00002C) ??_7type_info@@6B@ Is this an unre...more >>

I'm currently charged with the task of writing a customized business application. This app will perform order entry, invoicing, accounting, etc. type tasks. Can anyone justify a decision to write this app in VC++.net as opposed to writing it in VB.net? Assumptions: everyone in department ...more >>

Hi, I have got InstallShield with VC++, and I would like to use it to create a setup for various types of project, e.g. a game, activeX control, etc. However the project wizard only allows you to choose an .exe, and it makes you choose between 'database application', 'finance application'...more >>

//file1.cpp #include <stdio.h> class A { public: int i; int j; A () { i = 1; j = 2; } }; class B { public: A a; static void test () { printf ("%d, %d", a.i, a.j); } }; void main () { B::test (); } //error: the left of .i .j should be a struct/class/uni...more >>