[Interest] Problems with graphics library auto-detect on Windows

[Michael R Nelson]

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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