Hi group what can i do to know if a given .exe or .dll file, is com or not? thanks very much in advance, Carlos. ...more >>

The data and connection wizzards of VS2005 result in the connection string being put in the application config file. I have an application where I would like to provide connection string information from a class that I write. I cannot find a way to replace the work done by the settings class ...more >>

hi all! I m a new user of VC++.NET. Can you please give me some good ebooks link for this? I want to learn it much sooner. ...more >>

Hello! I defined a class(CMyView1) based on CView from class wizard in VC2005, and there're following code in .h file: .... .... protected: CMyView1(); // protected constructor used by dynamic creation virtual ~CMyView1(); .... .... and then in MainFrm.cpp , there'...more >>

Hello! I'm using VC2005, I wonder to know how to remove a class from my current project. ...more >>

how do i convert LPWSTR to LPTSTR thanks in advance for helping regards Abhishek ...more >>

I'm realizing how little I know about C++ today as I try to convert some functionality from VB.Net to C++. I have a procedure that I need to pass a List of objects to, and cannot see how to do this using C++. It's easy in VB.Net, so I'm hoping it is just my silly misunderstanding of c++ that ...more >>

Hi! I'm new (but please do continue reading) to C++ in the VS environment and wanted to create a standalone program (or preferably, a static library, compatible with other Windows compilers) that; 1. Takes an URI as an argument. 2. Prints the proxy for that URI to stdout (or in the static...more >>

I am using PowerPoint 2000 with a very large presentation with many Hyperlinks, mostly to other slides but many also to Internet links. Recently, some of them are not working. I correct them on the live presentation and get them to work then, when saved and re-loaded the same ones do not w...more >>

I created a BMP file called 'map.bmp' that is 50x50 pixels in size. I then execute the following code: Image_List = gcnew ImageList() ; Image_List->Images->Add( Image::FromFile( "map.bmp" ) ) ; button = gcnew Button() ; button->ImageList = Image_List ; button->ImageIndex = 0 ; I al...more >>

Hi, I need to send and receive data through RS-232 port in a synchronous way. The problem is that the data packet I need to send and receive is huge so I need to send and receive it in two or more segments. But I need to do that with two functions one to read and one to send in such a wa...more >>

I'm writing a program using MS VC++ 2005 Express [managed (CLI)], and I use the Button class. For the most part, this is working fine. I can set BackColor, ForeColor, Width, Height, etc. But if I try to us either 'BorderColor' or 'BorderStyle' it says they aren't properties of Button! H...more >>

How do I programmatically select an time in a combo box? I can set the text but it does not automatically set the selected property. There is a SetCurSel() method but I don't know what the index of the item I want to select(or how to find it). Thanks ...more >>

Hi, I want to unlock the drive programmatically ? is there an api function related to it. For instance, when i run chkdsk with /F parameter, i get "drive in use" error . I want to unlock drive programmatically and execute chkdsk Thank you in advance, Sony. ...more >>

Hello, My DLL (VC 2005, unmanaged) contains an exported function AutoOpen, whose name should be undecorated. I've used this declaration: extern "C" __declspec(dllexport) int WINAPI AutoOpen(void) In spite of extern "C", the name of this function is still decorated in the DLL (_AutoOpe...more >>

I have a project written in VC++ 2003.NET which uses MFC classes. I have ONLY VC++Express2005. I can open the VCProject file sucessfully. The conversion takes place without any error. BUT the project is not Building using VC++Express2005. The error is as follows: 1>Compiling... 1>StdAfx.c...more >>

How do I programmatically set the text of an edit control? Thanks. ...more >>

Hi everybody. I'm writing a .NET wrapper class for a native C++ library and decided to do it in C++/CLI. One of the problems I ran in to is the following. In C++ I have the following public ref class MyClass { .... bool DoIt(DateTime^% date); bool DoIt2([OutAttribute] DateTime^% date) ...more >>

Hi, I wanted to get the Visual Studio 2008 Pro (Beta 2) software, at lease the C++ subsystem. The Microsoft web site has it as a free download. The problem I'm having is that it is to large to download by dial-up. Its over 3 GBs. I was wondering, due Microsoft have supporters that mail soft...more >>

i need to restore an external app's minimized window whose handle i know, from within a different running app. how would i do that? thanks for any help ray ...more >>

Hi all, Suppose I export a function or a structure from a standard DLL that uses the C++ "bool" data type. The documentation states that, as of C++ 5.0 and later, Visual C++ implements bool as a 1 byte data type. If someone puts a value other than 1 or 0 into the byte and calls into my co...more >>

Hi all, A friend of mine is an experienced MFC programmer. He as recently gotten ".Net Religion", but he can't find a good reference book that presents basic Windows Forms programming techniques that he can relate to his MFC skills. He is currently programming in both C++/CLI and VB.Net. ...more >>

Hi all, In the VS 2005 IDE, is there an easy way to navigate to the closing brace for a given openeing brace in the source code? TIA - Bob ...more >>

I have a C++ ActiveX control that is used by JavaScript code in  Internet Explorer. Recently, a customer installed Acrobat Reader 8.1  and reported that the ActiveX control wasn't working. In the event  viewer, there's a error from SideBySide: "Generate Activation Context  failed for ... . Refer...more >>

I am working on developing a program using Visual Studio 2003 but am having problems getting my program to find my GL.h and GLU.h, and I am guessing it will have the same problems trying to link to the .lib and .dll files. What do I all need to do to get this to properly compile and link. Here...more >>

I'm trying to create 'sprites', which are graphic objects with shapes other than just rectangles. As such, I need to be able to establish a transparent color. So, I create images using Photoshop, make the area I want transparent black. But when I store them as jpg files, it seems to store i...more >>

The following code public ref class X { protected: delegate void D(); void F(D^ a) { } }; gives warning C4677: 'F': signature of non-private member contains assembly private type 'X:D' In another assembly the following code (C#) works fine: public class Y : X { public void Ca...more >>

I have a C++/C++.net application. Release version crashes on the Multi-CPU box but Debug version works well. And release version works well on single-cpu box. Any idea? ...more >>

Why does the following code public ref struct X abstract sealed { literal int Y = 1; }; give the error C4693: 'X' a sealed abstract class cannot have any instance members 'Y'? In the help it says that literal implies static. ...more >>

I have an error when compiling a simple form project... I just start a new Form project and add a new PictureBox in a form(or anything that generate the .resx file) After that when compiling I always get the following error (in VS 2005): Compiling... blablabla.cpp Compiling managed re...more >>

Why? I mean, why #import is not supported with /MP? Or how do I get round this? Beside from removing /MP, of course =) Kind regards, Nikolay ...more >>

I got a example, it GetBkColor from a HDC(the dc get from a DialogBox), but it BkColor always color white, dialogbox default BkColor is color like gray, how can I do to get the correct color for dialogbox? Thanks! ...more >>

For the following BEGIN_COM_MAP(I_Command) COM_INTERFACE_ENTRY(ICommand) COM_INTERFACE_ENTRY(IDispatch) COM_INTERFACE_ENTRY(IConnectionPointContainer) COM_INTERFACE_ENTRY_IMPL(IConnectionPointContainer) END_COM_MAP() I get the error error C2440: 'static_cast' : cannot convert from '...more >>

Below are the definitions of two classes. VList creates two static integer arrays (v_0, v_1), creates an array of pointers to these arrays (vlist), and has a public method to return a pointer to the corresponding integer array based on its index into vlist (Element( index )) . MyClass conta...more >>

I'm working on migrating my VC++ 6.0 project to VS C++ 2005 and I'm bulding the project using NMAKE from the command line. The code is not GUI, all console utilities and services. I've managed to compile/build the code but couple of places in my build tree I don't see manifest file along with ...more >>

Hi all, I'm struggling to do something really basic. How do I declare a structure that has a union that maps an array of 3 chars with 3 distinct char variables. In other words, I want the following two statements to put the same value into the same byte in the structure: myStruct.Var...more >>

I'm using VC++ 2005 Express in /cli mode, and I'm trying to initialize an array of integers. Something like: array<int> int_array ; int_array = gcnew array<int>(3) ; int_array = { 0x3, 0x9, 0x7 } ; // error here How is this done? Thanx in advance... ...more >>

One Visual Studio 2005 solution contains a C# project and C++ ATL DLL project. The DLL compiles fine, gets registered automatically, gets referenced correctly when the C# program compiles, and gets called correctly during execution. So far, so good. During execution of the DLL, a call to ...more >>

I need to expose a String property, so I have: property String^ Filename; in my ref class. Now, in a member function, I need to call a native function that takes a std::wstring parameter. Of course, the compiler is complaining of me trying to convert String^ to std::wstring. What is the...more >>

Petzolds C# book has code like this: (mea.Button & MouseButtons.Right != 0) I try the C++/CLI analog: if( (e->Button & ::MouseButtons::Left) != 0 ) but get errors: error C2678: binary '!=' : no operator found which takes a left-hand operand of type 'System::Windows::Forms::MouseButto...more >>

I made a control library project using Visual Studio 2005 with C++/ CLI. I now have my code working and running, but none of the intellisense works. Is there a setting I need to turn on, or is the intellisense for C++/CLI not good? ...more >>

I am building a control library in C++/CLI. My project links with a native library and am getting an error that the library cannot work with pure: dxerr.lib(dxerr.obj) : fatal error LNK1313: ijw/native module detected; cannot link with pure modules I am fine switching to CLR mode, but I ha...more >>

I need to compute a 64 bit file offset which will get passed to the _lseeki64 function. The inputs to the offset calculation are all unsigned shorts or unsigned longs. For example: unsigned short page_size; unsigned long page_index; unsigned long page_offset; __int64 file_offset; file_offs...more >>

Is there a problem linking a .net C++ dll that relies on .net framework with an application that is developed and compiled in VS6 C?...more >>

Hello group, I'm making a custom control in C++/CLI. The control builds fine. To test the control, I made a C# Forms application. On the Toolbox, I right clicked and chose "Choose Items". I then browsed for my control DLL and added it. The custom control now shows up in the toolbox. I t...more >>

I moved some unmanaged C++ code into a C++/CLI project. The unmanaged code makes some Win32 API calls. I thought as long as I kept the API calls in a native class, it would integrate seamlessly. However, I am getting a whole bunch of linker errors with regards to the API calls: Example: ...more >>

I recently added some new code files to a C++/CLI project. The added code is all native. I simply added the code to the project and built it. It compiled fine but I am getting the linker error: LNK2022: metadata operation failed (8013118D) : Inconsistent layout information in duplicated typ...more >>

If I see a certain .dll path as shown in the example below: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls\C:\WINDOWS\system32\mydll.dll Does it mean that the presence of hte registry key above makes such mydll.dll is "loaded", registered or running? I am evaluating an appication...more >>

Hi There, Hope your all well? I just wonder if anybody knows where I can find a downloadable Knowledge Base or Helpdesk using Winforms with Code for either C++, C#, or even VB? Needs to either have a Access Database or use XML. I`ve search on Google but to no avail. Hope somebody can hel...more >>

I have a closed source app. I have a .dll plugin for this app (which I am writing). This plugin contains a bug somewhere which seems to clobber memory in a "random" fashion (as in, its not clobbering any specific identifiable piece of memory that I can breakpoint on or anything). Are there a...more >>