C

LCD simulator. I introduced the simulator that I used to rewrite the ucGUI, but it took me a long time to separate the simulator from the ucGUI, do not separate well, but at least you can use it. the description is as follows: 1. LCD simulator

In programming, in a large number of cases, you need to use the memset () function to set the memory to zero initialization. In addition to the memset () mentioned here, there are actually many functions, such as snprintf (), strncpy () and so on

If a DLL written in VC ++ is to be called by a program written in other languages, the function call method should be declared as _ stdcall. WINAPI adopts this method, the default call method of C/C ++ is _ cdecl. The _ stdcall method is different

In a multi-task environment, it is inevitable to use locks to prevent competition. The Locks can be implemented through mutex or direct switch interruption. You need to lock key code or data before accessing it, And then unlock it after it is used

When using epoll to write network applications, especially servers. In order to obtain the optimal effect, the edge trigger (epoll ET) method is generally used. Due to edge triggering, epoll_wait returns only when the socket status changes.

Recently I made a pen test for a software company. One of the questions asked me to give an array name and find the number of elements in the array. At that time, I did not do it. Later I carefully thought about and analyzed it, I have made some new

I was planning to take "the path to Qt learning" as a similar tutorial, so I didn't plan to put some content related to the source code in that series. So let's take a look at a new beginning today! It is estimated that this series will not be very

INTRODUCTION: The IEC 61162, an international standard, consists of four digital interfaces for navigation, radio communication, and system integration. IEC 61162-1 multiple transmitting accepted by IEC 61162-2 single transmitting multiple accepted,

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Qt is an open-source C ++ library with huge source code. If you want to make your own contribution to Qt but cannot find the starting point, start with document translation! I used to open a translation project on sourceforge.net. Today, we try to

 I recently learned the State mode of the design mode. I have encountered the problem of HTML parsing, and I need to use the State machine for analysis. So I tried to use the State mode to write the HTML parsing process, although this is a bit of a

I believe that students who have learned C language will see the characteristics of C language in the book: portability. But what is portability? How can it be transplanted? How can c be transplanted? For beginners, it may be a mysterious word that

This article is from A Deeper Look at Signals and Slots, Scott Collins 2005.12.19. It should be noted that the "signal slot" we refer to here not only refers to the signal slot in the Qt library, but also stands at a global height and understands

IE web pages are a classic issue in IE programming. After the release of IE9 beta, I received a lot of questions about this. Recently, I have re-structured the Code related to IE and Windows so that IE9 can be perfectly compatible with the original

All string classes originate from C strings, while C strings are character arrays. The C language does not contain strings, but only character arrays. Let's talk about the C ++ string: C ++ provides two types of strings: C-style strings and string

I didn't write a blog during this time. I thought a lot of things outside of technology, and sometimes I felt that it was good to stop thinking about my life. In our daily life, we solve many problems by using the computer system. The webpage

I recently wrote a lot of programs and found that the results were very good. Some Complex programs I understood before, but I could not write them quickly. Everything benefited from debugging, in the past, I never thought that debugging could do

 Streaming Media basic key points: how to obtain PTS in H264 data? Order: Only outline the key points. More specific methods are not described in detail.My open-source project and many open-source projects have detailed and complete implementation

Introduction to Spear Parser Spear Parser (hereinafter referred to as Spear) contains the training part of Collins Model 1. It is a good entry code for understanding and implementing the Collins Model. Because the Code provided by thesis of M

Usually, whether a user interface library has a large number of users depends on the following factors: whether the supported operating systems are diverse, whether the supported operating systems have a large market share, and whether they are easy