qt5base-lts/tests/manual/repaint/task141091/main.cpp

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** This file is part of the test suite of the Qt Toolkit.
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#include <QtGui>
#include <QDebug>

class MyWidget : public QWidget
{
public:
    MyWidget() : QWidget() { 
        
        
        setAttribute(Qt::WA_OpaquePaintEvent);
        setAttribute(Qt::WA_StaticContents); }
protected:
    void paintEvent(QPaintEvent *e) { qDebug() << e->rect(); }
};

int main(int argc, char **argv)
{
    QApplication a(argc, argv);
    MyWidget w;
    w.show();
    return a.exec();
}