Documentation for QT_QPA_* environment variables

Saswati Swami

Hello,
Where can I get the complete documentation for the environment variables starting with QT_QPA_* ? I need to know the entire list of extra parameters that are supported by these variables and the meaning of each such extra parameter.
Example : Here,
QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS=/dev/input/event1:rotate=180
has been defined with 2 extra parameters. So, what is the entire set of such extra parameters that can be set using QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS ?
Thanks
-Saswati Swami

SGaist

Hi,

I think you are looking for this page.

Saswati Swami

Hi SGaist,

Thank you very much.
Yes, I have been looking for the following 2 pages:
https://doc.qt.io/qt-5/embedded-linux.html
https://doc.qt.io/qt-5/inputs-linux-device.html

I am using the Variscite Dart-6UL which supports only the linuxfb plugin. Need to match the touchscreen coordinates with the widget coordinates.
Best Regards
-Saswati Swami