ctrl – SyntaxBug

QT captures keyboard input and displays the input shortcut key combinations, and solves the problem that some key combinations (such as Ctrl+Shift+letters) cannot be recognized in the Linux environment

Recently I am working on a QT project, which requires identifying keyboard input keys to generate shortcut keys. There is a class QKeySequenceEdit in QT. Using this, you can directly obtain keyboard input. However, if you want to filter out the keys you do not want to recognize, you must rewrite it. ThekeyPressEvent(QKeyEvent *e) function. […]

A brief analysis of how Ctrl+C in the C# console works

One: Background 1. Tell stories In the last article, we talked about why the Console is stuck. Friends who have read that article believe that they have a general understanding of conhost.exe. This article goes further and talks about the special events of the window Ctrl + C What is the underlying flow like? To […]

pinctrl subsystem – source code analysis (5)

1, pincontroller (pinctrl server) structure 1, pin controller driver matches device and executes probe diwali_pinctrl_init platform_driver_register( & amp;diwali_pinctrl_driver); //Find the device according to the match table diwali_pinctrl_probe pinctrl_data = of_device_get_match_data( & amp;pdev->dev);//Get msm_pinctrl_soc_data msm_pinctrl_probe(pdev, pinctrl_data);//Pass soc data 2, probe process int msm_pinctrl_probe(struct platform_device *pdev, const struct msm_pinctrl_soc_data *soc_data) { // 1) Allocate a msm_pinctrl structure […]

pinctrl subsystem – coupling between pinctrl and gpio (6)

1. The relationship between gpio subsystem and pinctrl subsystem As software engineers, our expected hardware design should be as shown below: The HW block of GPIO should have an equal relationship with other function multiplexed blocks. They are jointly input to a multiplexer block. The register of this block controls which functional circuit is currently […]

Vue right mouse button draws rectangle and Ctrl key multi-select component

Renderings Description The component code and a Demo will be posted below. The above rendering is the effect of the Demo. It is recommended to copy the two codes directly to your own development environment to run and debug directly. Component code <template> <!– Use the mouse to draw a rectangle to select objects –> […]

pinctrl subsystem – architecture and structure relationship (4)

1. Introduction of pinctrl As SoC systems become more and more complex and highly integrated, the number of pins in SoC is increasing and their functions are becoming more and more complex, which poses a challenge on how to manage and use these pins. Therefore, the hardware module (pin controller) used to manage these pins […]

“Copy” isn’t just Ctrl+C and Ctrl+V! You all need to know about deep and shallow copying

There are 6 default member functions in the class This article will introduce in detail the copy assignment of C++ default member functions. The copy construction is divided into shallow copy and deep copy. There are also overloads of copy construction. 1. Definition of copy constructor Copy constructor: There is only a single formal parameter, […]

In Vue, using the writing method of highcharts Gantt chart, the scroll wheel can hold down ctrl to scroll to zoom in and out.

<template> <div id=”containerss”> <div id=”container”></div> </div> </template> <script> import Highcharts from ‘highcharts/highstock’ import gantt from ‘highcharts/modules/gantt’ import moment from ‘moment’ import { showGanttData, projectShowAll } from ‘../../../serviceAPIs/service’ gantt(Highcharts) export default { mounted: function() { Highcharts.setOptions({ lang: { rangeSelectorZoom: ”, resetZoom: ‘return’, resetZoomTitle: ‘Return to initial state’ } }) }, data() { return { // Render […]