Shulou(Shulou.com)06/02 Report--

In this issue, the editor will give you an introduction on how to operate C++. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

C++ programming language is a widely used and powerful programming application language. It supports general programming languages with multiple programming paradigms and provides support for all kinds of programming. Here we will deepen our understanding of the language through the introduction of the operating mechanism of C++.

1.windows applications are event-driven programming patterns. In the C++ operating mechanism, it is mainly based on messages. When a function needs to be completed, some support of the system will be called. The system wraps the function call as a message and delivers it to the message queue, and the application takes the message from the message queue and carries on it accordingly.

The system controls the response and behavior of hardware. The application has nothing to do with the system interacting with the hardware. The application program gives instructions to the system method, and then the system controls the hardware to operate input and output. The functions that the system exposes to the application are called system functions, and the set of these system functions is called windows API. A handle is similar to a pointer, with only one indication of a resource! Message queuing is a first-in, first-out sequence

two。 In windows C++ program, the entry function is the winmain function:

/ / when the program is running, each window is an instance int WINAPI WinMain (the current instance of HINSTANCE hInstance,// marks the number of lines of the previous instance of HINSTANCE hPrevInstance,//, the number of lines marked with the LPSTR lpCmdLine,// command line argument, the state of the int nCmdShow// window displayed (* minimized))

3. Create a window

1) create a window class

2) Registration window

3) create a window

4) display and update window

C++ operating mechanism process all call functions!

The above is the introduction of how to operate C++ shared by the editor. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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