Qt-QSplashScreen-program startup animation,

Qt-QSplashScreen-program startup animation,

When most large applications are started, a startup screen is displayed before the program is fully started, and disappears after the program is fully started. The startup screen displays information about related products, it allows users to understand the product functions while waiting for the program to start. This is also a publicity method.

First run the interface

The following is the sample code.

Mainwindow. h

#ifndef MAINWINDOW_H#define MAINWINDOW_H#include 
 
  class MainWindow : public QMainWindow{    Q_OBJECTpublic:    MainWindow(QWidget *parent = 0);    ~MainWindow();};#endif // MAINWINDOW_H
 

Mainwindow. cpp

# Include "mainwindow. h" # include
 
  
# Include
  
   
MainWindow: MainWindow (QWidget * parent): QMainWindow (parent) {setWindowTitle ("program startup screen example"); QTextEdit * edit = new QTextEdit; edit-> setText ("program startup screen example"); setCentralWidget (edit); resize (600,450); Sleep (1000);} MainWindow ::~ MainWindow (){}
  
 

The most critical core code

Main. cpp

#include "mainwindow.h"#include 
 
  #include 
  
   #include 
   
    int main(int argc, char *argv[]){    QApplication a(argc, argv);    QPixmap pixmap("logo.jpg");    QSplashScreen splash(pixmap);    splash.show();    a.processEvents();    MainWindow w;    w.show();    splash.finish(&w);    return a.exec();}