Hi, Strange, I am having a .Net C++ managed dll project, where in i call a new on a non managed code. This however is giving a problem, I get an exception saying "An unhandled exception of type 'System.NullReferenceException' occured in Mydll.dll" "Additional information: Object reference not...more >>

I've got Visual C++ 2003. I'm looking for a profiling tool. I'm from the Unix world where a good profiler comes free and built into the compiler and linker. I tried the Help utility in Visual C++ and got 500 hits for "profile" .. but none of them indicated that a profiler is built-into ...more >>

hi, i'm still having troubles with my menus the EnableMenuItem function doesn't seem to work at all in a MDI. i'm doing exactly the same thing as i did when i coded a dialog based App with a menu, but it worked. i just want to disable and gray commands in the menu. And even when i disa...more >>

After I open a workspace I have access to all C++ files of the workspace. I can put breakpoints. Everything look great... So I go attach to my process and Visual C++ go close my workspace! I don't see the goal of closing the workspace... How can I fix this strange behavior/bug?...more >>

I recently read that the heap that you access when you use malloc and free is created by MSVCRT. Is the "default" or process heap ever used then if you're not explicitly calling heapalloc with that heap? Why does MSVCRT not just use this default process heap?...more >>

I have posted my problem before and still not feel confused. Anyone know what is the problem? In my Win32 dll, I defined: #ifdef DllExport #define UNMANAGED_API __declspec(dllexport) #else #define UNMANAGED_API __declspec(dllimport) #endif #ifdef __cplusplus extern "C" { #endif...more >>

I'm trying to get Vis C++ std to compile using /O2 optimizing flag. Many people have suggested downloading the MS C++ 2003 Toolkit ... it supposedly has C++ compiler bins that one could use. I downloaded the 2003 Toolkit ... but the bin files are identical (size, date, contents) as my ...more >>

Hi all, I got a *.lib files and some header files from a thrid party which is developed using ANSI C. I am now trying to create a managed C++ application and import those libraries. I added the lib file in the linker option and include those header files inside the program. Everything is o...more >>

hi, i finally tryied with a popup menu but i have a problem. i popup it with TrackMenuPopup and i create it from a ressource. but it doesn't look as it should. i d'ont have the names of the menu categories, only a small rect appears but with nothing wrote in. when i pass on with the curso...more >>

Ive got Vis C++ 2003 standard edition. I want to optimize my application for speed (use the /O2 directive). The "optimization" field in my Project Properties window shows /O2 (in my Release build) but it is dimmed out. I cannot change it. My BuildLog.htm file says "Optimization not av...more >>

i tried to build a windows service in .net.however when i gave the commmand "installutil" at dos prompt in the right directory,it gives the error "installutil" is not internal or external command,operable or batch file.please help me out -------------------------------- From: aditya desai -----...more >>

I'm having a _CrtIsValidHeapPointer assertion at the _free_dbg_lk function. I'm calling a function from a DLL witch allocates (malloc) a char array and the exception occours freeing the array. The DLL that causes the problem is compiled and linked on the same way that the others that form my a...more >>

Hello, I am new to VC++. I want to use the values in a Dll (values are assigned to variables in the program and this vaule should be made use in the dll). Is it possible? I have already tried declaring the variables as extern _declspec (dllimport) in the dll. This doesn't work. Can anyone h...more >>

Hello, I am developing a project using Windows Forms .NET by using Visual C++ .NET v2003. I open a Sub_Form by clicking a button on the Main_Form. Some operations are working at Main_Form and results of those works are updating the texts and enable statuses of controls (LabelBox, Buttons, ...more >>

None of those words in the message. Been nice if the editor would have highlighted anything "offensive" so how did you get yours through? - Robert - PS I agree with the other poster that suggested going straight to the newsgroup. I don't have any messaging system installed on my mac...more >>

In the same spirit as setw( ) and setprecision( ), is there a stream manipulator that will fill in closing-zeroes on those fractions with a given setprecision( )? For example, if setprecision(3) is used, I want '1' to be displayed as "1.000", '1.2' to be displayed as "1.200", '1.23' to be d...more >>

I am trying to add a 'Validating' event handler to a TrackBar. Code: ... this->tbKeyboards->Validating += new System::EventHandler(this, tbKeyboards_Validating); ... System::Void tbKeyboards_Validating(Object* sender, System::ComponentModel::CancelEventArgs* e) ... Compiling this code...more >>

In my C++.NET Class library project, I called a dll by using: #using "My_Win32_Dll.dll" But when I build the project, I got: "c:\DotNET\C++\C++_Solution\MyClassLib\MyClassLib.h(5): fatal error C1192: #using failed on 'c:\dotnet\c++\c++_solution\myclasslib\my_win32_dll.dll' " What is t...more >>

Hi, I'm writing a code that has to be as efficient as possible both in terms of memory use and execution speed. I'll have to pass a class instance (which is an 'intelligent' array) to a function (multiple times). Taking this into consideration, should I pass it as a pointer or reference? Is t...more >>

I wonder if a "reply" can get through?... Well my serious request still won't even go through as a "reply" but this simple reply did?! - Robert - -- Robert A. Macy ------------------------------------------------------------------------ Posted via http://www.codecomments.com --...more >>

I've tried to post a legitmate question 15 times with NO success, but my simple single line "test" message went right through. - Robert - -- Robert A. Macy ------------------------------------------------------------------------ Posted via http://www.codecomments.com -------------...more >>

Hi all.. I'm planning to translate an application I programmed in VC++ 6.0 to VC++.NET platform becaun in VS.NET it's easier to develop. The question is: if I compile an application under VS.NET, it will run under Windows 98 O.S. without any problem? Thanks in advance Jaime ...more >>

How do I set compiler options in my IDE? My IDE is VC++ Standerd 6.0. thx! -- Message posted via http://www.dotnetmonster.com...more >>

I've got a Windows Forms Application project where I'm using 2 radial buttons. I want to poll whether the radial button has been pressed or not. Here's one way I think it could work, using the Checked property : bool r1=System::Windows::Forms::RadioButton::get_Checked; but how do I specify ...more >>

Hello All, I have effectively the following (part of a much bigger header): namespace X { namespace Y { __gc public class EnvironmentList { // rest of declaration }; __gc public class AnotherClass { public: __property EnvironmentList* get_EnvironmentList( ); // **!** ...more >>

I have been asked to design a file server application. Here are the particulars: The data that is to be served is on a 80Gbyte USB drive connected to a USB 2.0 port. That disk needs to be used by 2 applications. One archives the disk data to another drive, the other does timed seeks extr...more >>

I compiled a program using VC++ pro. I use "depends.exe" to determine what DLLs the program is linking. Then I use the Install Shield that comes with VC++ to create a setup file. I run the setup file on my pc(XP) and it works great. My problem is that when I try to install it on any* other s...more >>

Can someone direct me to an example of how to call VSS to 'get' files from a particular project/lable? Thanks...more >>

i want to plot a line graph. The values that I obtain are the RGB value of a TIFF image. i m plotting RGB values vs value(1,2,3..) so when generated the RGB values, there will b a column of values for me t plot the line graph thanks alot Peteroid wrote: > [B]What kind of 'plot' of the da...more >>