Qt drawing with GDI (Windows only)
There are many options for 2d drawing engines in Windows: GDI, GDI+, DirectDraw, Qt/QPainter, Agg, Cairo, SKIA, Direct2D, Direct3D, OpenGL, etc. GDI: Microsoft's native 2d...
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Tag: c++
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December 20, 2023
by Reyansh Kaur
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1, Microsoft official provides depends, you can check the exe file dependence library, only applicable to WinXP/Win7 / Win8, but not for Win10, will be...
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Versatile const
December 20, 2023
by Jayant Chadha
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In C++, the const keyword can be used to modify any scoped variable, function parameter, function body, function return value, member function, iterator, pointer itself...
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PAT Level B Programming — Knowledge Store (CIN, Cout, scanf, printf)
December 20, 2023
by Michael Horn
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Comparison in C language is output by printf function, input by scanf function. C ++ retains this use of C. Cin and cout are built-in...
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C language: array and pointer knowledge points
December 20, 2023
by 李馨儀
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1. The name of the array is the first address of the array element. 2. Arrays can only be assigned as a whole when initialized....
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Stay up late for this C++ development learning route
December 20, 2023
by Dishani Gandhi
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Hello everyone, I am handsome. I have written several articles about the learning route before. Front-end development learning route Java back-end development learning route the...
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Go-style C++ coprogram library CO quick start guide
December 20, 2023
by John Davis
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Idealvin, co, C++, C++ programming, coroutines, go-style coroutines, coroutine, go-style coroutine, logs, configuration files, JSON, RPC, log
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C + + Vector,
December 20, 2023
by Nitya Wagle
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Vector is a kind of sequential container. Vector is a variable length dynamic array (which can hold any type) that supports random access iterators. All...
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C language uses the third-party library Melon out of the box multithreaded model
December 20, 2023
by Beth Tyler
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This article reprinted from headline number: https://www.toutiao.com/i6928959491274703371/ reproduced please indicate the source, thank you! In a previous article (the UNIXC language essential utility third-party library),...
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Use of blocks in iOS, examples, application scenarios, and underlying principles of parsing (this is probably the most detailed Block parsing)
December 20, 2023
by Dr. Gregory Hughes
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【 Abstract 】 In this article, first of all, in section 1, I introduce the definition of Block and its comparison with functions in C....
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C language strcat_S function – C language zero basic introduction tutorial
December 20, 2023
by 梁淑慧
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(#%E4%B8%80strcat_s%E5%87%BD%E6%95%B0%E7%AE%80%E4%BB%8B ") -
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Robustness of the code
December 20, 2023
by Keith Mason
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This is the first day that I have been involved in the August More text challenge, and the details are as follows: the K from...
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[crow] the C++ microservices framework mirrors crow
December 20, 2023
by Shannon Bradley
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Crow is a high performance and easy to use c++ web framework, this paper records the use of docker to build available crow framework mirroring...
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Self assignment: a seemingly simple but easy mistake
December 20, 2023
by Divyansh Swaminathan
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Self-assignment is the simple act of an object assigning a value to itself, but this seemingly innocuous action can cause your code to crash under...
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Blade – a C++ project building tool
December 20, 2023
by Miss Elaine Powell
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Blade is an easy-to-use, high-performance, modern code building system that is particularly suited for agile building of large code bases within a company, with built-in...
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C++ class this pointer, static member, friend function friend class | 8 months more challenging
December 20, 2023
by Nayantara Deshpande
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This pointer appears in a member function and operates on a member variable using the -> member extractor when a class, object, encapsulation, inheritance, or...
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C language strcat function – C language zero basic introduction tutorial
December 20, 2023
by 黃思穎
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(#%E4%B8%80strcat%E5%87%BD%E6%95%B0%E7%AE%80%E4%BB%8B ") - [2
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C++ basics review series 04
December 20, 2023
by 吳龍
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How can I type "\n" cout<<"\n"<<endl; To get an array length: strlen() int len(
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C# implements design patterns — composite patterns
December 20, 2023
by 孫飛
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The composite pattern is the last pattern detailed above by HeadFirst, and the previous patterns are considered mature and frequently used patterns by the authors....
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C++ basics review series 03 (recursive algorithms)
December 20, 2023
by Reyansh Kaur
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Recursive algorithms are generally used to solve three types of problems: (1) the definition of data is defined recursively. Fibonacci function (2) the solution of...
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One, Rvalue reference and mobile semantics
December 20, 2023
by Lesley Hargreaves
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Quickly understand the new features of C++, suitable for C++ basic students. This article introduces the concept of Rvalue reference and its application scenario movement...
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Chapter 2: C Data Types, Operators, and Expressions (part 1)
December 20, 2023
by Kevin Morgan
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In this lesson, we only cover data type descriptions. Other explanations will follow in subsequent chapters. The so-called data types are divided according to the...
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Chapter 2: C Data Types, Operators, and Expressions (Part 2)
December 20, 2023
by Debra Macias
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It is often necessary to assign an initial value to a variable in a program in order to use it. Language programs can have a...
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C++ basics review series 02
December 20, 2023
by 李馨儀
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3. Print graphics class (loop) Use for loop to print graphics only need to remember two points 1. Remember outer loop columns, inner loop rows....
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C++ basics review series 01
December 20, 2023
by William Forrest
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(1) To the decimal place: #include < iomanip> // Don't forget the header file
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006- Erudite Valley – Annual Diamond C++/C-Unix/Linux(5)
December 20, 2023
by Chloe Webb
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006- Erudite valley - Annual Diamond C++/ C-UNIX /Linux(5) SSH is short for Secure Shell, by the IETF Network Working Group (Network Working)
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C++ basics review series 05
December 20, 2023
by Robert Maddox
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** If two or more letters appear the same number of times and the same is the highest frequency, output the first letter in the...
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C# starting series (xv) – enumerations
December 20, 2023
by Kiara Jani
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Definition An enumeration is a set of named integer constants. Enumeration types are declared using the enum keyword. C# enumerations are value types.
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Chapter 4: C Arrays (Part 2)
December 19, 2023
by Alexis Lewis
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The array used to hold the characters is called a character array. The form of the character array type description is the same as that...
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An in-depth look at node.js event loops and message queues
December 19, 2023
by Stephanie Caldwell-Webster
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This is where asynchronous IO comes into play. For example, with multithreading, if you use Java to read a file, it is a blocking operation...
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