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Author: Li Xiaofei Download the sample project in this article I. ChattingFirst of all, I am sorry to my friends who have not had time to reply to your questions here. This is a very busy time. I am so happy! Haha! Well, let's move on to the subject. Today we are going to talk about COM, which is a little deeper. I don't know how to use C ++ test or visual assistant (you can download it from the VC Knowledge Base tool column) none of the software, the

# Pragma pack () and sizeof This article consists of two parts. The first part focuses on how to use sizeof in VC to find the structure size and problems that are prone to, and provides solutions to the problems, the second part summarizes the main usage of sizeof in VC. 1. Structure of sizeof applications See the following structure: Struct mystruct { Double dda1; Char DDA; Int type }; What will happen if

I. Preface This article describes how to build the development environment of VC 6.0 in win7. First, we will introduce the compatibility solution between the two so that VC 6.0 can run normally on win7. Then, to enhance the coding auxiliary function of VC 6.0, we will introduce the extremely powerful plug-in visual assist X; finally, in order to improve the user

The VC ++ application launched by Microsoft is an integrated development environment, which means that it is a software development platform like the C ++ language and wants to learn VC ++ applications well, we should focus on learning a lot about the features of the Windows platform. VC + is an integrated development environment (IDE), and C ++ is a programming

In general, there are three methods for VB and VC to program together: one is VC to generate DLL, and the other is calling DLL in VB; the other is VC to generate ActiveX Control (. ocx), which is inserted in VB; another is to generate ActiveX Automation server in VC and call it in VB. Relatively speaking, the first met

In general, VB and VC common programming there are 3 ways: One is the VC generation DLL, in VB to call the DLL; one is the VC generates ActiveX control (. ocx), inserted in VB; There is also a VC in the generation of ActiveX Automation server, in VB call. Relatively speaking, the first method of

English version of "Computer Network 4" and the answer to the exercises. This is an authoritative book on computer network model design. Device Driver > Inside Microsoft Windows 2000, Third Editon, an authoritative book that reveals the internal structure of Windows >. This is a good book for getting started with Windows driver development. Http://www.yanping.net/shuji.htm-Chinese 5. Computer Technical Tutorials and Information: Free Technical Tutorials Collect a large number of development r

Vb vc mixed programming troubleshooting When compiling Visual Basic applications, we often need to write some library functions or ActiveX controls by ourselves. These functions or controls are often written in the VC language, therefore, it is often difficult for different parameter types and memory space usage methods between VB and VC. How can this problem be

I. simple comparisonVB is a visual basic evolved from the basic language. It means Visual Basic, while VC is a visual C ++ evolved from the C ++ language. It means visual C ++, VB functions are not powerful, but they are easy to understand. We recommend that you first learn VB. If you want to study programming professionally in the future, you can attack VC, then you will find out how easy it is to learn

Http://blogs.msdn.com/ B /astebner/archive/2007/01/16/mailbag-how-to-detect-the-presence-of-the-vc-8-0-runtime-redistributable-package.aspx Question: I am building an installer that will include the Visual C ++ (VC) 8.0 runtime files redistributable package (vcredist_x86.exe, vcredist_x64.exe and/or vcredist_ia64.exe) as a prerequisite. how can I detect whether or not this package is already installed on t

When compiling Visual Basic applications, we often need to write some library functions or ActiveX controls by ourselves. These functions or controls are often written in the VC ++ language, therefore, it is often difficult for different parameter types and memory space usage methods between VB and VC. How can this problem be solved? This article describes how to solve these problems in the case of mixed pr

First, the concept of smart pointersThe smart pointer is a class, not a pointer , and the smart pointer automatically frees the system resources that are used by the contained pointer when it is no longer in use, rather than manually releasing it.Principle: The smart pointer encapsulates the AddRef () function and the release () function, which contains pointers, and calls the release () function containing pointers in the destructor when the class is not needed to release the resource containin

VC MFC button (CButton) control November 11, 2012 19:15 TCEO Category: Technical Articles Views: 4,298Button controls1 How to display a picture on a button controlFirst determine what type of picture you want to display in the button control, here I am the ICO icon, because you want to display the ICO icon in the button, so to change the properties of the button control,The method is to right-click the button control, select Properties, click the Styl

Because some algorithms of MATLAB are used in image processing, some array data (depth data of three-dimensional reconstruction) is obtained.Using OpenGL drawing in VC requires the use of this data (depth data) for display purposes.Use the statement under MATLAB: Csvwrite (' Depthmap ', depthmap); //Depthmap is an array variable, and the preceding depthmap is the CSV file name.The function readcsv is to read a CSV file (a two-dimensional array) to th

Recently in the VS2008 using VC + + to two ArcGIS engine development, using a period of time will be found for some smart pointers, can not be intelligent hints that contain the properties, methods, etc. The most obvious point is that the declared smart pointer variable is not displayed according to the color of the variable (the default should be blue, now it is only black), because the visual assist parsing the current project produces a larger cach

Information management platform of a subsidiary of Sinopec, several VMware virtual machines--ESX server share an IBM DS4100 storage, about 40~50 group virtual machine, occupy 1.8TB space, normal operation, VC report Virtual Disk lost, ssh into ESX to execute FDISK -L View the disk and find that storage has no partition table. When all devices are restarted, ESX server cannot connect to the storage where DS4100 is located.When we received the case, we

Start with Linux starting from the beginning, because the Linux programming understanding of the program to be clear, in contrast to VC is more easily confused.When you compile dynamically, the program you publish is small, and you need to provide the Dll/so file you use when you run it.When statically compiled, the program you publish is large, contains all symbols, runs without the support of other dll/so, and can be run independently.The purpose of

Previously wrote an article "VC + + using CImage in memory JPEG conversion BMP picture", through the CImage realized in memory JPEG to BMP.Since JPEG can be transferred to BMP, that CImage also supports BMP-to-JPEG, in contrast to the previous article, which relies on the CImage load function, BMP-to-JPEG is implemented by the Save function:The use of the IStream interface is also a function overload, specifically refer to msdn:http://msdn.microsoft.c

This paper mainly discusses the implementation of Chinese URL decoding, not detailed URL coding, UTF-8 encoding. To learn more about the codec problem, please refer to the relevant informationURL encoding: Hexadecimal of the ASCII code of the real character. Just a slight change, need to add "%" in front. For example "\", its ASCII code is 92,92 hexadecimal is 5c, so "\" URL encoding is%5c.UTF-8 encoding is a variable-length character encoding of Unicode, created by Ken Thompson in 1992. It is n

VC + + Adjust the size of the control based on the dialog box size1. Add the member variable CRect m_rect in the dialog class to save the size before the size of the dialog box changes;2. In the OnInitDialog () function of the dialog box, get the size of the dialog box when it was created: GetClientRect (m_rect);3. Add the following code to the Wm_size response function OnSize ():1:private:CRect M_rect;2:getclientrect (m_rect);3:void Cbuttondlg::modif