Create a QWheelEvent and pass it to a widget's wheelEvent

[Lykurg]

It should work, but probably the event gets eaten somewhere else. How do you have defined the pointer dsatsGrid? Can you make a small executable project reproducing your problem.

EDIT: Here I made a simple working pice of code:

#include <QtGui>
 
class Test : public QWidget
{
    Q_OBJECT
public:
    Test(QWidget *parent) : QWidget(parent)
    {}
 
protected:
    void wheelEvent(QWheelEvent *event)
    {
        qWarning() << Q_FUNC_INFO << event;
    }
};
 
 
class Base : public QPushButton
{
    Q_OBJECT
 
public:
    Base(QWidget *parent) : QPushButton(parent)
    {
        setText("send weel event");
        test = new Test(this);
        connect(this, SIGNAL(clicked()),this, SLOT(send()));
    }
 
private Q_SLOTS:
    void send()
    {
        QWheelEvent event(QPoint(10, 10), 120, Qt::LeftButton, Qt::NoModifier);
        QApplication::sendEvent(test, &event);
    }
 
private:
    Test *test;
};
 
 
 
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
 
    Base b(0);
    b.show();
 
    return app.exec();
}
 
#include "main.moc"

#include <QtGui>

class Test : public QWidget
{
    Q_OBJECT
public:
    Test(QWidget *parent) : QWidget(parent)
    {}

protected:
    void wheelEvent(QWheelEvent *event)
    {
        qWarning() << Q_FUNC_INFO << event;
    }
};


class Base : public QPushButton
{
    Q_OBJECT

public:
    Base(QWidget *parent) : QPushButton(parent)
    {
        setText("send weel event");
        test = new Test(this);
        connect(this, SIGNAL(clicked()),this, SLOT(send()));
    }

private Q_SLOTS:
    void send()
    {
        QWheelEvent event(QPoint(10, 10), 120, Qt::LeftButton, Qt::NoModifier);
        QApplication::sendEvent(test, &event);
    }

private:
    Test *test;
};




int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    Base b(0);
    b.show();

    return app.exec();
}

#include "main.moc"

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