Errors in EventLogger. This eventlogger is designed on Qt5 but having these errors in QT 6.2

[Christian Ehrlicher]

See the deprecation information about those functions in Qt5, e.g. https://doc.qt.io/qt-5/qtime-obsolete.html and https://doc.qt.io/qt-5/qpixmap-obsolete.html

To measure a timespan, use QElapsedTimer, for QPixmap see the deprecated function page.

[Aviral 0]

@Christian-Ehrlicher Hi Thankyou for solution. I am new to QT, I have very little idea of how to do it. I would really appreciate if you help me with that piece of code! Thankyou and congrats for life time QT champion.

[Aviral 0]

@Christian-Ehrlicher I have solved the problem of QTime with QElapsedTimer
But I can't find replacement of QPixmap. Please if you can find share.

[jsulm]

@Aviral-0 From the link @Christian-Ehrlicher gave you:

QPixmap QPixmap::grabWidget(QObject *widget, const QRect &rectangle)

This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.

Use QWidget::grab() instead.

So, what about using grab() instead of grabWidget()?

[Aviral 0]

@jsulm Yeah I am trying it, and its throwing error saying
call to non static member function without an object argument
If you know what change its aking?

[Christian Ehrlicher]

@Aviral-0 said in Errors in EventLogger. This eventlogger is designed on Qt5 but having these errors in QT 6.2:

all to non static member function without an object argument

Because QWidget::grab() is not a static function. You have to call it on an object (mainWidget I would guess) - plain c++ stuff.

[Aviral 0]

@jsulm I have done this, please suggest where I am wrong:

 if (this->screenshotsEnabled && eventType.compare("MouseMove") != 0)
  {
    QPixmap *gb;
    gb mainWidget->grab().toImage().save(screenshotDirName + "/" + QString::number(elapsedTime) + ".png", "PNG");
}

Its showing error, Please Help!

[SGaist]

Hi,

You are missing an = sign.

[Aviral 0]

@SGaist with = also its showing error

[SGaist]

@Aviral-0 said in Errors in EventLogger. This eventlogger is designed on Qt5 but having these errors in QT 6.2:

@SGaist with = also its showing error

You do realise that "showing error" gives no information to help you with ?

[ChrisW67]

@Aviral-0 said in Errors in EventLogger. This eventlogger is designed on Qt5 but having these errors in QT 6.2:

if (this->screenshotsEnabled && eventType.compare("MouseMove") != 0)
{
QPixmap *gb;
gb mainWidget->grab().toImage().save(screenshotDirName + "/" + QString::number(elapsedTime) + ".png", "PNG");
}

Its showing error, Please Help!

As @SGaist points out, you are missing a "=".

You are also not initialising your pointer (a C++ cardinal sin) but ultimately that's a moot point.
QWidget::grab() returns an actual QPixmap, not a pointer to one.
There is also no need to convert the QPixmap to a QImage in order to save it: QPixmap::save().

 if (this->screenshotsEnabled && eventType.compare("MouseMove") != 0)
 {
    QPixmap gb = mainWidget->grab();
    gb.save(screenshotDirName + "/" + QString::number(elapsedTime) + ".png", "PNG");\
    // Consider whether you need to check that the save was successful
}

[AlmaCarreon]

This post is deleted!