Qt app crashes on Win 7 unless AA_UseDesktopOpenGL is set explicitly

[MartinD]

I have a computer with Windows 7 where my QtQuick 2 Qt 5.7.0 app crashes. I have to explicitly set app.setAttribute(AA_UseDesktopOpenGL), then my application on this particular computer works.

Is there a way to automatically handle this situation? I don't know how safe it is to hard set app.setAttribute(AA_UseDesktopOpenGL). I would rather detect whether the app will run on the PC and if not then set app.setAttribute(AA_UseDesktopOpenGL). Is there a way to accomplish this automatically without user seeing anything (mainly app crash popup)?

[mrjj]

hi
Did you check where it crash ?
You might be able to detect that init did not work and then switch to
.setAttribute(AA_UseDesktopOpenGL)

https://forum.qt.io/topic/51574/opengl-dynamic-selected-driver/5

[kshegunov]

@MartinD
Also as Chris mentioned here this attribute should be set before you have the application object. As a rule of thumb, don't call static functions like methods, it only creates confusion.