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Transferred from: Qt - drag the mouse to adjust the window size - remove ice and sugar - blog Garden (cnblogs.com) Requirement: when the mouse moves to the corner of the interface, the mouse style changes accordingly. Implementation method 1: Override mouseMoveEvent. If the mouse is not pressed, set the mouse style according to the positio ...

Coordinate system The process of converting coordinates to standardized equipment coordinates and then to screen coordinates is usually carried out step by step, which is similar to the pipeline. In the pipeline, the vertices of the object will be transformed into multiple coordinate systems before they are finally transformed into screen coor ...

1 Overview Qt Remote Object, called qtro for short, is a new module officially launched after Qt5.9, which is specially used for inter process communication (IPC). Qtro is essentially a point-to-point communication network. Each process accesses the qtro network through QRemoteObjectNode. The function providing node (which can be understood as ...

Source code:      NetToolsTest For other QT Widge articles, please click here:      QT Widget learning notes Sister articles:      Introduction and practice of Qt TCP/UDP network protocol (I) TCP communication This article is just the simplest introductory study, which can be ...

2.4.2 comboBox drop-down box QComboBo provides a drop-down option in the form of a list for users to display, saving screen space. The data in the drop-down combo box can be modified and edited, and can contain pictures and string text. The font selection box, font size selection box and color selection box in Word document software are implem ...

2.1.6 button box   The button box can easily and quickly arrange a group of standard buttons. For example, the common confirmation dialog boxes have standard buttons such as "OK" and "Cancel". Qt makes these typical buttons into standard button boxes and encapsulates the corresponding signals for the convenience of program ...

This article is reproduced from: Use of qstring class in QT -- obtain specified character position, intercept substring, etc_ haiross column - CSDN blog_ qstring interception Functions in QString class. 1, String concatenation function 1. QString also overloads the + and + = operators. These two operators can connect two strings together.    ...

catalogue 1,   Horizontal layout class (QHBoxLayout) 2. Vertical layout class (QVBoxLayout) 3. Grid layout class (QGridLayout) 3.1. Single network layout 3.2 network layout across rows and columns 4. Form layout class (QFormLayout) 5. Nested layout 5.1. Add other layouts to the layout 5.2. Add layout in control 5.3. QSplitter lay ...

  This article is reproduced from: Qt::QWidget has no default title bar border. How to modify the size - childe Kaiming - blog Garden Development environment: win10+vs2015+qt5.9.1 Background: in the development process, the title bar and border provided by the system are rarely used; They often customize a scheme designed by themselves. ...

After installing mplayer in linux environment, open QT in ubuntu. QT installed version 5.12.9. The icons on QT interface are basically pictures collected by punctual atoms. For the implementation method, refer to the teaching in station B Brief introduction to mplayer command: Key operation:      Volume reduction: /, 9 &nbsp ...