QT waiting box production

QMovie + GIF

#include "DWaitProcessDlg.h"
DWaitProcessDlg::DWaitProcessDlg(const QString &title, QWidget *parent) : QDialog(parent)
{
    
    this->setFixedSize(100, 100);
    this->setWindowOpacity(0.8);
    this->setWindowFlags(Qt::FramelessWindowHint | Qt::Dialog);
	this->setAttribute(Qt::WA_TranslucentBackground, true);
    m_frameBg = new QFrame(this);
    m_frameBg->setStyleSheet("background-color: rgb(55, 135,215); border-radius:10px;");
    m_frameBg->setGeometry(0, 0, 100, 100);

    m_labelLogo = new QLabel(m_frameBg);
    m_labelLogo->setStyleSheet("background-color:transparent;");
    m_labelLogo->setGeometry(30, 15, 40, 40);
    m_movieLogo = new QMovie(":/Resource/images/spinner.svg");
    m_labelLogo->setScaledContents(true);
    m_labelLogo->setMovie(m_movieLogo);

    m_labelTip = new QLabel(m_frameBg);
    m_labelTip->setText(title);
    m_labelTip->setStyleSheet("color: white;background-color: transparent;");
    m_labelTip->setGeometry(10, 70, 80, 20);
    m_movieLogo->start();
}

DWaitProcessDlg::~DWaitProcessDlg()
{
    
    m_movieLogo->stop();
    delete m_labelLogo;
    delete m_movieLogo;
    delete m_labelLogo;
    delete m_frameBg;
}

Call mode

QApplication::setOverrideCursor(Qt::WaitCursor);// Set the mouse to wait 
QString strTip = " Export data in ...";
DWaitProcessDlg *pWaitDlg = new DWaitProcessDlg(strTip, this);
pWaitDlg->show();
for(int i=0; i<list.count(); i++)
{
    
	QCoreApplication::processEvents();
}
QApplication::restoreOverrideCursor();
pWaitDlg->close();

https://www.cxymm.net/article/work4blue/45923601