Visual C++

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  • Topics
    Replies
    Last post
  • Vertical, rotated LABEL
    by bucz
    3 Replies
    Last post by Bite Qiu - MSFT
      • How to display a vertical label, rotated 90deg
  • get User Objects/Handles for a process
    by Nikolay Georgiev
    1 Replies
    Last post by Nikolay Georgiev
      • Hello, I'm new to using the windows libraries and I try to figure out how can I found the user objects (handles) for some process (like in the task manager). I've searched two days in MSDN, but couldn't find something useful. So far I understood, that using the PSAPI.dll I can iterate over the processes, so I can get the process ids of the current running processes. I can't make the next step -
  • Calling function from another Form. C++
    by robben07160
    9 Replies
    Last post by Christiawan
      • Hi, I have two forms (implemented using Windows Forms - C++) using the same namespace the main form [FORM1] sets values in [FORM2] which works correctly. FORM1 file therefore includes (#include "FORM2.h¡±) in the header. But, what I'm trying to do is in the FORM2 file is to call a function which is located in FORM1 [I have included the FORM1 in the file (#include "FORM1
  • [.NET] sent keyboard command to a program
    by tlemcenvisit
    3 Replies
    Last post by Bite Qiu - MSFT
      • Hello I am working with Visual C++.NET. I would like to launch a program (for example notepad.exe) then, I'd like to send a keyboard command to this program (in the case of notepad.exe this implies writing). In an old version of VB I used the command sendkey to accomplish this task. To launch the program, I use: Code Snippet System::Diagnostics::Process ^proc = gcnew System::Dia
  • Why does VS2005 do a full compile on mananged C++ prjoect every time when debugging, even with no changes?
    by Luo Cao
    2 Replies
    Last post by Luo Cao
      • I searched in the forum, but I can not find the answer. Every time when I start to debug, VS will rebuild all managed C++ projects, and only these managed C++ projects; it cost me 2 minutes every time. That is too worse.
  • using unmanaged code
    by Participant
    7 Replies
    Last post by nobugz
      • Hi there, I am facing a problem of acessing unmanaged code from my managed C# application. The problem is that I have C++ based dll files that seems to be unmanaged since I was not able to add them using Add References fromVisual Studio 2005. The problem is that C++ code used to generate dll files is Object Oriented so I can't use P/Invoke with it. Does anyone know how can I add their reference
  • Callback implementation
    by Nikam Shailesh B
    3 Replies
    Last post by einaros
      • Hi, I want information about callback function. What are callback function. How they are implemented using function pointers -Shailesh
  • How to obtain date diffrence of two dates in years?
    by Aleksandr Tokarev
    11 Replies
    Last post by Simple Samples
      • How to obtain date diffrence of two dates in years I can do it manually, but I whant to know any API or CRT function. It should give date diffrence between two dates in days, month, years. somthing like datediff in MS T-SQL. for instance date diffefence in years between '29 july 1981' and '29 july 2007' == 26 (years).
  • About delete this
    by Sam1981
    14 Replies
    Last post by Brian Kramer
      • Hi, Is it valid that delete this ptr in a class method And why And it should be used in which the case if it's valid
  • Input/Output (save/load files)
    by Jerry584894
    8 Replies
    Last post by Simple Samples
      • this is my file: Code Snippet #include <iostream> #include <cstdlib> #include <string> #include <afxwin.h> using namespace std; void main() { char* pszFileName = "\test.dat"; CFile myFile; if ( ! myFile.Open( pszFileName,CFile::modeCreate | CFile::modeReadWrite)) { TRACE( "Can't open file %s\n",pszFileName); } } Howeve
  • benefits of private or protected constructor
    by George2
    10 Replies
    Last post by George2
      • Hello everyone, I am thinking about the benefits of a private or protected constructor. The only benefits I could think of is we could use singleton design pattern and make a public function (e.g. CreateInstance) as a single point to create instances and hide the constructor to outside. Any more comments thanks in advance, George
  • how to install/register a windows service programatically?
    by bijubiju
    3 Replies
    Last post by Damien Watkins - MSFT
      • hi, I have created a windows service using ATL wizard in visual c++ 6.0. How do i register, start and stop the service programatically Is there any other way to create a service( not to be an exe)
  • How to get index of currently selected item in case of MFC Listcontrol?
    by ketu0001
    6 Replies
    Last post by ketu0001
      • How to get index of currently selected item in case of MFC Listcontrol
  • MSDN OLE DB Sample Provider entry point
    by George2
    7 Replies
    Last post by Holger Grund
      • Hello everyone, I have built MSDN OLE DB Sample Provider and successfully built/debug it using Microsoft Excel as client. I have found that in DllGetClassObject (classfac.cpp), the class SampProv is initialized as the 1st coclass, then DataSource object will be created in QueryInterface. http://msdn2.microsoft.com/en-us/library/ms715011.aspx The entry point of a COM server (like this Samp
  • error LNK2019: unresolved external symbol
    by SFyffe
    8 Replies
    Last post by SFyffe
      • Hi Everyone, I have worked through a number of the threads but I can not get past this Link Error. MS Visual Studio 2005 Express Version 8.0.50727.42 My header file looks like this: #ifndef WAREHOUSE_H #define WAREHOUSE_H template < typename T> class warehouse { public : warehouse(); void additem( const T& it
  • VS.NET 2005 VC++ ERRORS?????????????????????
    by el_fuerte
    6 Replies
    Last post by Hao Tian
      • HI there i'm running an app. in vs.net 2005 with .cpp in pure c++ and files in vc++ . but the app retrive me this kind of errors: Error 1 fatal error C1010: unexpected end of file while looking for precompiled header. Did you forget to add '#include "stdafx.h"' to your source e:\Program Files\Point Grey Research\PGR FlyCapture\src\pgrflycap\rtCalib.cpp 504 Error 2 fa
  • About OnOK()!!!!!!!!!!!!!! Very Urgent
    by Hi,
    1 Replies
    Last post by Bruno van Dooren
      • Hi i ahve modal dialog which is activated when a button in the another dialog is clicked. This modal dialog has two custom buttons with id IDOK and IDCANCEL. The problem here even if i give ENTER when the dialog is activated, the dialog wont close. In other wards when i press ENTER key it wont call OnOK() function. But ESCAPE key works fine.. Please give me the solution as soon as possible
  • best practice for storing recent files used by my application
    by baxybaxy
    5 Replies
    Last post by baxybaxy
      • Hi all, I have a pretty typical application where the user can choose from of a series of files to open. I would like to add a 'recent document'* facility to this, in common with apps such as excel, word etc There would appear to be a load of ways to do this and I'm not sure which road to start down Can anyone advise on whether there is a best practice for this (in orde
  • Detecting debugger
    by brietje698
    5 Replies
    Last post by einaros
      • Anyone has a sample source on how to detect debuggers without IsDebuugerPresent
  • Reading from Config file
    by Mannee
    4 Replies
    Last post by Mannee
      • Hi! In my C++ application I use a COM Object (written in C#). When I try to call one of the methods (that tries to read settings from configuration file) I get a nasty error -0x7c812a5b (unfortunately it's hard to debug COM objects). My c# method looks as follows: public string ReadConfigValue() { System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUs
  • Async named pipe functions
    by zbenjamin
    14 Replies
    Last post by Simple Samples
      • Hello, is there a way to get a async notification from a named pipe handle that new data is available to read. A message or a event would be okay. i know i can wait with ReadFile for available data. But if i want to use named pipes in a gui application with that would block my application loop. regards zbenjamin
  • Calculate size of a project
    by Jason Zhang
    5 Replies
    Last post by Jason Zhang
      • Hi, Do anybody know how to automatically count the number of lines of a C++ project or a solution in VS IDE Thanks in advance. /Jason
  • Celsius to Fahrenheit converter
    by Anonymoususer
    4 Replies
    Last post by Anonymoususer
      • could someone figure out how to fix this errors: --------------------Configuration: ctof - Win32 Debug-------------------- Compiling... ctof.cpp F:\Program Files\Microsoft\C++\MyProjects\ctof\ctof.cpp(13) : error C2065: 'cout' : undeclared identifier F:\Program Files\Microsoft\C++\MyProjects\ctof\ctof.cpp(13) : error C2297: '<<' : illegal, right operand has type 'char [34]' F:\
  • Error C2248
    by Wessel571579
    1 Replies
    Last post by Wessel
      • Hi, I made this "lobby" but it gives me error c2248 how can I fix this problem I'm new to C++. He say's its private but I made it a friend. when I try to compile it in Dev-C++ it works, but when I use Visual Studio it gives me the error c2248 Code Snippet #include <iostream> #include <string> using namespace std; class P
  • adding member functions
    by Andrew Linzey
    6 Replies
    Last post by Bite Qiu - MSFT
      • I'm new to vc++ 2005 express. I've created a class in an empty win32 consol project,. the on line help says I should be able to right click the class and select 'add member function'. the menu I'm getting has 'got to definition', 'go to declaration' but no 'add meber function' . Do I have to configure something in IDE to to get thios to work -Andy