How to get correct screen size in PyQt6?

tipala

in pyqt6 in all cases I got the not the correct dimensions of my screen:

QGuiApplication.primaryScreen().availableGeometry()shows only:
PyQt6.QtCore.QRect(0, 0, 2048, 1112)

in pyqt5
QApplication.desktop().screenGeometry() I got
PyQt5.QtCore.QRect(0, 0, 2560, 1440) which is correct

any Idea?

Christian Ehrlicher

@tipala said in How to get correct screen size in PyQt6?:

availableGeometry()

screenGeometry()

do you spot the difference?
If you want the screenGeometry, you should call screenGeometry() and not availableGeometry()

tipala

HIi Christian,
thanks for your answer, but it seems not the solution:

I also tried:
screen_resolution = QGuiApplication.primaryScreen().geometry()
print(screen_resolution)
Result :
PyQt6.QtCore.QRect(0, 0, 2048, 1152) -> false values

If I try to downgrade the screen resolution to e.g. 1600 x 1200
screen_resolution = QGuiApplication.primaryScreen().geometry()
print(screen_resolution)
Result:
PyQt6.QtCore.QRect(0, 0, 1600, 1200) -> ok

With availableGeometry() it seems similar
resultion 2560 x 1440 leads to PyQt6.QtCore.QRect(0, 0, 2048, 1112)
resultion 1600 x 1200 leads to PyQt6.QtCore.QRect(0, 0, 1600, 1160)

So it seems it depends mainly on the resolution

any idea so far ?

Thanks !

tipala

It seems I found a reson for that

on Windows apart of the screen resolution it's possible to adjust the size of text, apps etc.
This was set on 125% on the desktop from with I tried. After setting to 100%
result is
PyQt6.QtCore.QRect(0, 0, 2560, 1440) as needed

This is definitiv a different behavior between pyqt 6 and 5