Programmer Think

catalogue 1, Macro expansion 2, Q_ What are the benefits of enum? 3, Reference and use in specific projects enum DockOption { AnimatedDocks = 0x01, AllowNestedDocks = 0x02, AllowTabbedDocks = 0x04, ForceTabbedDocks = 0x08, // implies AllowTabbedDocks, !AllowNestedDocks VerticalTabs = 0x10, ...

Reference: Qt Creator quick start, Third Edition, edited by Huo Yafei 1, Process 1.1 process related classes, interfaces, signals, etc In the current application, you can call external programs to realize some functions, which will use the process. Qt's qpprocess class is used to start and communicate with an external program (process). To ...

1, Foreword The original intention of this component is to create a wheel to make data import and export extremely simple. It can be done in a few lines of code, which is applicable to most application scenarios. This is also the biggest difference between this component and qtxls. Qtxls aims to be large and comprehensive and provide various x ...

Qt music player summary Imitating the Netease cloud music mobile phone interface, the music player implemented by Qt Creator 4.9.0 (Enterprise) has the main functions of switching songs, previous and next, pausing, playing, switching lyrics display, and music playing mode, including (list order, single song cycle, random play), as well as d ...

preface Qt provides many auxiliary tools for visiting controls 1, Five layout managers QVBoxLayout vertical layout VBox layout QVBoxLayout(); QVBoxLayout(QWidget* parent); Simple use method //1. Main window QWidget wid； wid.setWindowTitle("Vertical layout"); //2.new QVBoxLayout QVBoxLayout *layout = new QVBoxLayout(); layout-&g ...

1, Project introduction UDP network broadcast communication is realized by using QUdpSocket class. Its principle is shown in the figure below. The working principle of UDP is: the UDP client sends a certain length of request message to the UDP server. The message size limit is related to the protocol implementation of each system, but it ...

Signal and slot are used for communication between objects, which is the core of Qt. To this end, Qt introduces some keywords, such as slots, signals and emit. These keywords are not c + + keywords, but are unique to Qt. These keywords will be converted into standard C + + statements by Qt's moc. Qt's component classes have some defined signal ...

catalogue 1, Experimental topic 2, Experimental purpose 3, Overall design 1. Experimental principle 2. Design steps 4, Detailed design 1. Procedure flow chart 5, Experimental results and analysis 6, Summary and experience 1, Experimental topic Network conference program based on IP Multicast 2, Experimental purpose Referring t ...

This content is original, please indicate the source for reprint. environment Ubuntu18.04 or Window 10 python 3.8.5 pyqt 5.9.2 Qt Remote Object, referred to as QtRO for short, can be used to communicate between different processes using signal slots. No more, just do it. I will use Qt and Python to create client and server respectively, and c ...

qt login interface is simple to make, which is a real nanny level!!! Engineering innovation practice in the second week: create a form, design the user login interface (including user name and password), and realize the user login function. When the user submits the login button, he is required to obtain the user name and password data in the ...