mapFromGlobal() and multiple monitors

[bibasmall]

Hello!
I need to detect if the cursor is on menu bar, so I use:

//here I had to use nativeEvent, x and y seem to be correct
long x = GET_X_LPARAM(msg->lParam);
long y = GET_Y_LPARAM(msg->lParam);

auto dpr = this->devicePixelRatioF();
QPoint pos = ui.qMenuBarMain->mapFromGlobal(QPoint(x / dpr, y / dpr));
if (ui.qMenuBarMain->rect().contains(pos))
    //some work

It works fine if I use a single monitor, but with two with different DPI (dpr is 1.5 and 1 for the first and second respectively, if I use them separetely) something gets ruined, so I get negative relative coordinates in pos when using second monitor with less pixel density.
I've checked if I could use:

connect(this->window()->windowHandle(), &QWindow::screenChanged, [this](QScreen* screen) {
    auto dpr = screen->devicePixelRatio();
});

But dpr is same for both screens if they are used together. Though it doesn't help if I set dpr manually before division, so I think mapFromGlobal doesn't work as I expect.
What am I doing wrong?

[bibasmall]

@SGaist,
Qt 6.3.2, Windows 10.

I found that winapi coordinates I got eventually turned out to be different from QCursor::pos() when talking about switching between different scales. So I decided to use QCursor::pos() instead, and it helped:

QPoint globalCursorPos = QCursor::pos();
auto menuGeom = ui.qMenuBarMain->geometry().translated(ui.qMenuBarMain->mapToGlobal(QPoint(0, 0)));
if (menuGeom.contains(globalCursorPos))
    //some work

[SGaist]

Hi,

Which version of Qt ?
On which OS ?

[bibasmall]

@SGaist,
Qt 6.3.2, Windows 10.

I found that winapi coordinates I got eventually turned out to be different from QCursor::pos() when talking about switching between different scales. So I decided to use QCursor::pos() instead, and it helped:

QPoint globalCursorPos = QCursor::pos();
auto menuGeom = ui.qMenuBarMain->geometry().translated(ui.qMenuBarMain->mapToGlobal(QPoint(0, 0)));
if (menuGeom.contains(globalCursorPos))
    //some work