I am using _bstr_t class in a function. This is used in an application
that is used in an multi-threaded environment. The function is
implemented as follows:
int Function(wchar_t *sqlCmd)

hello all, i've a problem :s
i've tried to convert a "system::string" (a textbox) to an "int" but i
have only found a function to convert system::string to char and char
to int :s :

I'm trying to build a Web Service that will kick off threads as logging
requests come in. These threads will then log to the database. I have
been able to make a simple Web Service. I have been able to get a
simple multi-threaded example working. I have been used the

i've created one DLL (testlib) and i want to use it in my application
as an array of its instances ...
i'm getting an exception as
'System.NullReferenceException'

I want to use postgreSQL database in my C++ .NET application but when I
try to connect to it, through connect to database, it is shows dialog
box as follows:
Unable to connect to database

I want to write a an application A, which calls LoadLibrary to load a
DLL (B).
However DLL (B), also calls LoadLibray (NOT IN DLLMain) to laod another
DLL (library C)

Hello people,
I have C++ code compiled with GNU compiler gcc version 2.95.3.
which I need to edit and run under windows. (I have access to VS6 and
VS.NET)

I have 10+ experience in C/C++ - mostly automation and graphics.  I have
never written any business apps though.  Recently I've been asked to write a
simple report that would calculate sales commission.  The report needs to be
generated from within a C/C++ app.  I don't want to ...

Hallo zusammen,
möchte rausfinden, ob zB das Laufwerk "W:\" ein gemapptes Netzlaufwerk
oder ein lokales Laufwerk ist.
Ich denke, das geht mit WNetGetConnection.

I have some code where I need to store a value as LPVOID.  I'd like to be
able to do some runtime testing about whether the thing that's pointed to is
of a certain type.  I've tried using RTTI's typeid and dynamic_cast functions
(the latter won't compile), but they've not worked ...

I have research about advantages and disadvantages of C++ languages In one
of my programming courses.
Can Any one help me and told me about  advantages and disadvantages of C++
or redirect me to some web sites proffessinal about this kind of reserach ?

Here is my problem:
In file form1.h I have the following code:
#pragma once
#include "Test.h"

I have a form Form1 in my application.
I now create a generic class Test1. In this class I declare a variable of
type Form1. I also include the header file for the form in this class.
This gives me a compiler error. Can someone tell how do I access it.

I have a vc++ WinForms app. Can I override the WndProc so I can send custom
messages to my app. Is there any way to do this? I need to notify the main
form of events from a library. How is this done in VC++?
Thanks

this problem happened after we upgrade our program from vc6.0 to vc.net2003
unmanaged code.
Following are the sample code:
   float p, cpr = 3.4028234663852886e+038;