visual-c++

Derived DataGridView drawing problem. Shows black regions

Late Edit I tagged this as a C# question as well as C++ because the problem presents itself in both languages, and solution if shown would most likely be in the C# (the majority of the market). I have been developing an application under .net 2.0 (C++ to be specific, but irrelevant). This application uses a custom derived datagridview...

Can't launch working Program from Visual Studio IDE

If I start my self written app from the explorer it works fine. If I try to start it in visual studio(F5), it crashes at some point. It is also not dependant on the working directory! It is quite annoying, because I cannot debug that way. (I could try attaching to the process after launch, but....) Can anyone point me into a direction...

VC++ LNK2001: unresolved external symbol only when compiling on 64bit

I have made a dll that compiles fine in 32bit mode, but when compiling in 64bit mode (both on a 32bit box cross compiling and on a native 64bit box) I get the above error. The symbol that it is complaining about are the following: "struct return_info_ * __cdecl patch_file(char *,char *,char *)" I am new to C++ but I think I have defin...

Dump only a portion of memory in VS 2005

Does any one know if there is a way to dump only a chunk of memory to disk using VS? Basically, I want to give it an address and a length, and have it write the memory to disk. That way I can do a binary diff. Thanks. ...

Visual C++ 2005 doesn't add /dll argument for linker

What setting(s) in a Visual Studio 2005 project could cause the build to not add the /dll argument to the linker command line? Background: We have a large VC6 project that I'm porting over to VC 2005. This project contains a number of MFC extension DLLs, and I'm running into the following linker warning when I run a build: warning LN...

CFileDialog :: Browse folders

Hi All, When I try to instantiat a CFileDialog object it shows both the folders and files. How do you create a CFileDialog that browses for folders alone? Thanks... ...

How can install the crystal report in VC++ 6.0?

Hi, I want to create some report in tabular format in VC++, I thought of using the crystal report I am using VC++ 6.0 and am not using any database. I just wanted to transfer my program Data into tabular format. My question are as follows 1>How to install the crystal report in VC6.0? 2>How to transfer the program Data i,e object state t...

How to connect MySQL from VC++ on MS Visual Studio 2008?

How to connect with MySQL from Visual C++ Microsoft Visual Studio 2008 ? I tried googling and found solutions all of which ended with fatal errors like linker errors,... etc. Please explain (or provide a link) step by step, including prerequisites (with links) and all details. I don't need any query examples.. just connecting to MySQL. T...

How to make a string preprocessor definition from command-line in VC 2005 (C++)?

The documentation tells me that /D command-line switch can be used to do this, like so: CL /DDEBUG TEST.C would define a DEBUG symbol, and CL /DDEBUG=2 TEST.C would give it the value 2. But what do I do if I would like to get the equivalent of a string define, such as #define DEBUG "abc" ? ...

CComboBox only accept number in VC++ ???

I need to create a combo box in MFC /VC++ in which user can enter or select values in between 0 to 9999 only. How can I acheive this functionality. Please Help ...

Link error while building with command scons compiler=msvc

Hi, I am trying to build a program using the command scons compiler = msvc. During this action a link error appears: LNK1181: cannot open input file 'QtCore4.lib'. I have installed Qt for Windows from http://qt.nokia.com/downloads (the free version) and tried to find the requested lib file, but only found the same dll file. Any advice ...

what is wrong in my code getting current page path??

Hi I have my visualstudio vcproj file at c:\vsproj\example\test\test.vcproj under this path i have some other files like e test.cpp file and also a dll test.dll is there. so totally under tha path c:\vsproj\example\test i have 1) test.vsproj 2) test.dll 3) test.cpp normally to get the cuurent folder path we use ".\" so i have appli...

Does the WIX heat utility work with Visual C++ projects?

I am just starting to use Wix and would like to use heat to extract the outputs from my Visual C++ projects to source Wix files. This seems to work great for my C# projects, however, whenever I run heat on a C++ project I get an error: heat project MyProject.vcproj -pog:Binaries -cg MyGroup -nologo -out MySource.wxs heat.exe : error HE...

error C2664 converting from from const std::string to std::string&

I keep receiving a C2664 conversion error in visual studio It tells me that it can't convert parameter 1 from const std::string to std::string&. I tried adding/removing the const in the stringToWstring prototype and in the function itself and the error still comes up. wstring hexval = buff.substr(buff.find(L"hex(2):")); wstrin...

Can CWnd::CreateControl be used with windowless ActiveX controls?

Does anyone know why MFC's CWnd::CreateControl does not appear to successfully create some ActiveX controls, for example VBA's Label control. (PROGID: "Forms.Label")? I suspect it can't support windowless ActiveX controls, can anyone confirm this? I have workarounds (ATL), I'd just prefer to use a CWnd. ...

ActiveX control created with CWnd::CreateControl and invisiblity problem

I noticed if a create an ActiveX control with an MFC CWnd and call ShowWindow(SW_HIDE) or SetWindowPos to hide the window the internal m_hWnd of the class is set to NULL. Debugging into MFC revealed that some sort of "OLE Verb" was being executed on the object, which I think indirectly is nulling out my handle. Anyone know why? Modify...

To start debug mode in Visual C++ 2005, do I have to provide debug version linked library?

Hi there, I have an annoying problem with the debug mode of Visual C++ 2005. My scientific program uses FFTW3 library which is a FFT transformation calculation library. Sadly, there is no official VC++ pre-compiled version of FFTW3 library. More sadly, compiling FFTW3 from source code with VC++ 2005 is very hard. The FFTW3 official webs...

Register an object creator in object factory

I have the convenient object factory template that creates objects by their type id names. The implementation is pretty obvious: ObjectFactory contains the map from std::string to object creator function. Then all objects to be created shall be registered in this factory. I use the following macro to do that: #define REGISTER_CLASS(cla...

using activex dll in vc++ win32 project

hi i have got a ScreenCameraSDK and it comes with a 11kb dll file, it has a documentation too which lists the functions which can be used. It says ScreenCamera SDK ActiveX Reference Documentation ActiveX Reference The ActiveX ID on the system is: ScreenCameraSDK.RemoteControl Every method on the interface returns FAIL or SUCCES...

Programming Optical 3D-sensors after difficult measurement in Visual C++

Hello, I obtained three dimensional data from my optical system in Visual C++.And I want to show this profiler on windows form application.Is there any special library you could advise to me?And How can I customize this library in Visual C++. Could you help me please? Yours Sincerely.... ...