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These days, I've studied lua. The main focus is on the integration between Lua and vc. Write the code in the host program and then call the host program's code (or interface, component, whatever you like) in lua. I want to use scripts to control the host program's behavior. This is actually a separate, script-controlled architecture, which some ...

11. HighGUI GUI Creation and use of 11.1 slider bar 11.1,1 Create slider: createTrackbar() function The createTrackbar function creates a slider bar that can adjust values: int cv::createTrackbar(const cv::String &trackbarname, const cv::String &winname, int *value, int count, cv::TrackbarCallback onChange = (cv::TrackbarCallback)0, ...

1. Experimental topic      There is only one narrow passage for n cars in the parking lot, and only one gate for cars to enter and exit. The cars in the parking lot are arranged from north to south according to the sequence of vehicle arrival time (the gate is at the southernmost end, and the first car arriving first is par ...

This week ended the search list and began to brush the three list and two-point list of mathematics, which is expected to end 14 weeks ago. Deep search about maps: 1. Pay attention to the boundary. (note that when using memset, it should be considered clearly. Unnecessary parts may also be initialized, affecting the search). 2. The differenc ...

Derived classes do not use new Suppose the base class uses dynamic memory allocation: class baseDMA { private: char * label; int rating; public: baseDMA(const char * l = "null", int r = 0); baseDMA(const baseDMA & rs); virtual ~baseDMA(); baseDMA & operator=(const baseDMA & rs); ... }; The Declaration contains special me ...

Recently, I saw some readers asking for the C++ multithreading learning method in the official account. I have summarized it here, hoping to help you. catalogue What is multithreading? Why use multithreading? How do I create a thread? joinable()？ Multi thread parameter passing mode lock Atomic variable Conditional variable async Mu ...

Smart pointer 1. Introduction and introduction of intelligent pointer In order to facilitate programmers to solve the problem of memory leakage caused by forgetting to release a heap memory after applying for it, the concept of smart pointer is introduced. The behavior of smart pointer is similar to that of conventional pointer. The important ...

Ellipse class Develop a graphics program to display circles and ellipses. A Circle is a special case of an Ellipse. The major axis and minor axis are ellipses of equal length. Therefore, all circles are ellipses, and the Circle class can be derived from the Ellipse class. The data members include the coordinates of the Ellipse center, semi maj ...

2021.11.3 CCPC Guilin copper making summary 1. Competition experience I felt that the organizers were very happy from the beginning, and then all kinds of chat were very friendly. Blood loss didn't go offline. (I'm dead with the epidemic!!!) I feel that this experience is quite good, but it's very hard for volunteers to work with the environ ...

1 concept and relationship of class and object Class is an abstraction of a class of things with common attributes and behaviors in real life Characteristics of class: 1. Class is the data type of object. 2. Class is a collection of objects with the same attributes and behaviors What are the properties of an object? Attributes: various charact ...