Wine-Staging 7.8 Improves Alt+Tab Handling For Unity Games
Written by Michael Larabel in WINE on 7 May 2022 at 05:30 AM EDT. 9 Comments
WINE --
It's been a while since there was last a Wine-Staging update with notable new patches added for this experimental version of Wine. But with today's Wine-Staging 7.8 release based off yesterday's Wine 7.8 there is a new patch worth mentioning as well as updates to some of the existing patches.

Wine-Staging 7.8 is out today and comes in at 550 patches on top of what is found in the upstream Wine code. Wine-Staging is a bit lighter for this two week cycle period thanks to some Wine server patches making their way upstream. Wine-Staging continues to serve as more the experimental/bleeding-edge and "proving grounds" version for Wine users for running the latest Windows games and applications on Linux.

The new patch with Wine-Staging 7.8 is actually picking up a patch started in 2019 and designed to improve the alt+tab handling for Unity games and potentially other games too. The issue stems from this 2019 bug report seen since at least Wine 4.20 over alt+tab problems with Unity games in that OnApplicationFocus/OnApplicationPause events are not triggered on focus regain. David Torok who reported the 2019 bug also attached a "proof of concept" patch that was adding in one new line of code.

Fast forward to 2022, Wine users are still reporting alt+tab troubles for various games running on Unity Engine both on that bug report and other duplicate bug reports. Wine-Staging 7.8 has now picked up Torok's one-liner patch to the win32u input code. The fix is sending off a "WM_NCPOINTERUP" message on focus regain. With that simple patch, alt+tab handling for at least Unity games should now behave according to what gamers expect.

Wine-Staging 7.8 also updates patches around Wine's X11 NET_ACTIVE_WINDOW handling, raw input mouse code, API iteration tokens, and other patches.

Those wanting to download the latest Wine or Wine-Staging builds can do so over on WineHQ.org.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

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