I am planning onto building opencv with the support of qt, however I wonder if you can build it with any version of qt or if it need to be a specific version of qt
I know nothing about QT.
You have to digg cmakelist source code for highgui
I undestand that you can use QT5 or QT4.
You can read this tutorials too
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I have tried QT 4.8.6, 5.12.8 and they both worked perfect. I guess there is no specific version for it. Just try your available version
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I am using Qt 5.15.2 and have not seen any issues.