I'd installed QT for Windows but when I try to use
QT += multimedia
in the .pro file it showed me that this module was unknown. I checked Qt online installer for additional modules but there was no such a component there. How can I get Qt with multimedia on Windows?
If you're using Qt 6, Qt multimedia will be re-provided in Qt 6.2 which hasn't been released yet. You can find the whole list of modules which will be added to Qt 6.2 here: https://www.qt.io/blog/add-on-support-in-qt-6.0-and-beyond
For Qt 6.2 we are planning to provide the following additional libraries:
Qt Bluetooth
Qt Data Visualization
Qt Lottie Animation
Qt Multimedia
Qt NFC
Qt Positioning
Qt Quick Dialogs: Folder, Message Box
Qt Remote Objects
Qt Sensors
Qt SerialBus
Qt SerialPort
Qt WebChannel
Qt WebEngine
Qt WebSockets
Qt WebView