Unsolved How Qt Achieves the cross platform in Architecture Level?

[inforathinam]

How Qt Achieves the cross platform in Architecture Level?.

Internally how Qt is handling the S/w architecture difference?

[raven-worx]

@inforathinam
Qt 5 introduced the platform abstraction layer.
In pre-Qt5 ages the platform specific code was surrounded by IFDEFs for example.

[SGaist]

Hi,

You can watch this old Qt DD talk about QPA for more information. It's still relevant.

Otherwise you have a basic explanation here.