Could you please help me with some modifications to my Qt6 code?

[Teemo of LOL]

How can I fix the error 'C2039: 'data' is not a member of 'QWeakPointer<QCPAbstractPaintBuffer>'. that occurs when running it? plz help me

void QCPLayer::setMode(QCPLayer::LayerMode mode)
{
if (mMode != mode)
{
mMode = mode;
if (!mPaintBuffer.isNull())
mPaintBuffer.data()->setInvalidated();
}
}

[jsulm]

@Teemo-of-LOL Why is mPaintBuffer a QWeakPointer?

[Teemo of LOL]

@jsulm Why is mPaintBuffer a QWeakPointer? I'm not sure about this part. This code was written previously, and it worked fine in Qt5. I tried searching on Google and made some modifications as follows. Is there anything suspicious in this?

void QCPLayer::setMode(QCPLayer::LayerMode mode)
{
if (mMode != mode)
{
mMode = mode;
if (!mPaintBuffer.isNull())
{
auto paintBuffer = mPaintBuffer.toStrongRef();
if (paintBuffer)
paintBuffer->setInvalidated();
}

}
}

[jsulm]

@Teemo-of-LOL Should work, just try

[Christian Ehrlicher]

@jsulm Now I only wonder where the strong ref on the weak pointer is - otherwise it's always a nullptr.

@Teemo-of-LOL: Please format you code with the code (</>) - tags so it's readable!

[Teemo of LOL]

@Christian-Ehrlicher I will use tags for reference.

[Teemo of LOL]

@jsulm thank you. i will try

[ttyy]

Have you solved this problem yet? I'm having the same problem trying QT6!