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Fullscreen OpenTTD cannot be alt-tabbed back into #8775

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2TallTyler opened this issue Mar 1, 2021 · 5 comments
Closed

Fullscreen OpenTTD cannot be alt-tabbed back into #8775

2TallTyler opened this issue Mar 1, 2021 · 5 comments
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bug Something isn't working component: OpenGL needs triage This issue needs further investigation before it becomes actionable

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@2TallTyler
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Version of OpenTTD

1.11.0-beta2
(I have not bisected to find when this started, but it works fine in 1.10.3)

Expected result

On Windows 10: When running OpenTTD in fullscreen mode and having alt-tabbed to another window, it is possible to alt-tab back to OpenTTD.

Actual result

Alt-tabbing back to OpenTTD does not show the OpenTTD window.

Steps to reproduce

Put OpenTTD into fullscreen mode on Windows 10, alt-tab to another window, and then attempt to alt-tab back.
@TrueBrain TrueBrain added bug Something isn't working needs triage This issue needs further investigation before it becomes actionable labels Mar 1, 2021
@TrueBrain
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Confirmed, only happens with OpenGL.

Who plays FullScreen in this day and age?! :P

@TrueBrain TrueBrain changed the title Fullscreen OpenTTD cannot be alt-tabbed back into [OpenGL] Fullscreen OpenTTD cannot be alt-tabbed back into Mar 1, 2021
@TrueBrain TrueBrain changed the title [OpenGL] Fullscreen OpenTTD cannot be alt-tabbed back into Fullscreen OpenTTD cannot be alt-tabbed back into Mar 1, 2021
@decitrig
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decitrig commented Mar 1, 2021

I just experienced this as well. Crash information attached.

openttd_crash.zip

@James103
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James103 commented Mar 1, 2021

@decitrig Did you reproduce this crash simply by alt-tabbing back to OpenTTD when it is in fullscreen? If now, how did you get the crash?

@decitrig
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decitrig commented Mar 1, 2021

Yes, sorry for being unclear. The crash happened just by alt-tabbing back into a fullscreen OpenTTD. The crash did not happen with a windowed OpenTTD.

Let me know if you need more info.

@James103
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James103 commented Mar 1, 2021

Doing the following reproduces the issue but allows you to get back into windowed mode:

  1. Start OpenTTD in windowed mode.
  2. Alt-Enter to make OpenTTD fullscreen.
  3. Alt-Tab out of OpenTTD.
  4. Alt-Tab back to OpenTTD. The OpenTTD window does not actually get focused.
  5. Alt-Enter to exit fullscreen for OpenTTD.

@James103 James103 mentioned this issue Mar 1, 2021
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michicc added a commit to michicc/OpenTTD that referenced this issue Mar 1, 2021
@michicc
Fix OpenTTD#8775: [Win32] Don't create the main window when alt-tabbi…
24b3e9b 
…ng back into fullscreen.
@michicc michicc closed this as completed in c656633 Mar 1, 2021
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bug Something isn't working component: OpenGL needs triage This issue needs further investigation before it becomes actionable
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@decitrig @TrueBrain @James103 @2TallTyler