Tag: transparent

QWidget|QFrame sets the background to be transparent and can have a border color

QWidget|QFrame sets the background to be transparent and can have a border color Chapter1 “Qt” part 6 QSS Qt style sheet – interface beautification 1($$$) Chapter2 [QT] QSS beautification – basic knowledge Chapter3 QWidget|QFrame sets the background to be transparent and can have a border color Reference link Chapter4 Several methods for setting form (QWidget) […]

Analysis and solution of PyQt5 playing video with transparent channel

Analysis and solutions on using PyQt5 to play videos with transparent channels: Recently, when I was practicing on the PyQt5 project, I encountered the problem of playing a transparent channel background video. After searching for a long time on the Internet to no avail, I finally solved the problem by myself. The solution was quite […]

Redsocks traffic forwarding combined with iptables traffic transparent transmission under Linux appears socket: Too many open files and connect: Bad file descriptor

Under Linux, redsocks traffic forwarding combined with iptables traffic transparent transmission appears socket: Too many open files and connect: Bad file descriptor. Oct 8 18:59:34 localhost redsocks[26193]: connect: Bad file descriptor Oct 8 18:59:34 localhost redsocks[26193]: [192.168.10.10:53318->124.225.191.19:443]: red_connect_relay: Bad file descriptor Oct 8 18:59:34 localhost redsocks[26193]: [192.168.10.10:53318->124.225.191.19:443]: dropping client (R/W), relay (R/W), idle 0.000234s Oct […]

[C#] Use DWM to implement borderless form shadow or fully transparent form

1. Borderless form shadow, win7 (need to turn on Aero effect) and above systems public class LdwmForm : Form { public LdwmForm() { Initialize(); } /// <summary> /// Interface loading /// </summary> /// <param name=”e”></param> protected override void OnLoad(EventArgs e) { dwmInitialize(); base.OnLoad(e); } /// <summary> /// /// </summary> /// <param name=”e”></param> protected override void […]

The explanation is so transparent, and aspect AOP elegantly implements permission verification! (VIP Collector’s Edition)

1 Understand AOP 1.1 What is AOP AOP (Aspect Oriented Programming), aspect-oriented thinking, is one of the three core ideas of Spring (the other two are: IOC-Inversion of Control, DI-Dependency Injection). So why is AOP so important? In our programs, there are often some systematic requirements, such as permission verification, logging, statistics, etc. These codes […]

The explanation is so transparent, and aspect AOP elegantly implements permission verification! (VIP Collector’s Edition)

1 Understand AOP 1.1 What is AOP AOP (Aspect Oriented Programming), aspect-oriented thinking, is one of the three core ideas of Spring (the other two are: IOC-Inversion of Control, DI-Dependency Injection). So why is AOP so important? In our programs, there are often some systematic requirements, such as permission verification, logging, statistics, etc. These codes […]

WebGL implements transparent objects (alpha blending)

Table of Contents alpha mix How to implement alpha blending 1. Turn on the mixing function: 2. Specify the mixing function Mixed function gl.blendFunc() function specification Constants that can be assigned to src_factor and dst_factor Calculation formula of mixed color additive mixing Translucent triangles (LookAtBlendedTriangles.js) Example effect Sample code Translucent three-dimensional objects (BlendedCube.js) Example effect […]

Java picture background color becomes transparent

Java image background color becomes transparent illustrate Effect Before processing After processing Description Without further ado, let’s go directly to the tool class, which provides methods noBackground() determines whether the background color of the image is transparent. imageToPng() makes the background color of the image transparent. Effect Before processing After processing import javax.imageio.ImageIO; import javax.swing.*; […]

The cornerstone of traffic governance – full-link traffic label transparent transmission based on bytecode enhancement

AuthorAuthor: Li Lai, Senior Software Engineer, Huawei Cloud 1. Full-link traffic label transparent transmission In the microservice architecture, traffic labels are used to mark and classify traffic, enabling more granular routing, load balancing, flow control and other traffic management capabilities between microservices. Taking HTTP messages as an example, each header can be a traffic label. […]