Hi all,

Our app is QML based and uses Qt Quick Controls. We build for Windows, OS X, 
iOS, and Android.

As you know, Qt auto-selects a graphics library at startup (OpenGL, ANGLE, or 
Mesa llvmpipe). About 1 in 15 of our users report our app fails during this 
auto-detect process on Windows. Most failures appear to be poor OpenGL support 
in the card/drivers, but sometimes the issue is "vsprintf_s" export not found 
error, when running on XP. Updating drivers is rarely a fix for these scenarios.

We are coming to the conclusion we should force the use of ANGLE on Windows 7 
and above, and force SoftOpenGL on XP. Have others also come to this 
conclusion? Does anyone have any helpful tips to share on this issue?

Thanks,
Mike


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