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fix: black window on screen capture when content protection is enabled#31340

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VerteDinde merged 1 commit intoelectron:mainfrom
deermichel:deermichel/fix-screencap
Oct 11, 2021
Merged

fix: black window on screen capture when content protection is enabled#31340
VerteDinde merged 1 commit intoelectron:mainfrom
deermichel:deermichel/fix-screencap

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Description of Change

Closes #29085.

When screen sharing, BrowserWindows with enabled content protection should be transparent on supported Win 10 versions. However, after hiding and showing the window, Windows falls back to a black rectangle as known from the old WDA_MONITOR affinity (though GetWindowDisplayAffinity still returns WDA_EXCLUDEFROMCAPTURE). This workaround mitigates the issue by setting the WS_EX_LAYERED flag on the window.

Please backport to v15 & v16.

Repro fiddle: https://gist.github.com/012544e8dbde6143d809dd82b201b236
Repro steps: run -> aux window will be hidden; press hide & show -> black/transparent rect

cc @codebytere @miniak @zarubond

Checklist

Release Notes

Notes: Fixed black window when screen capturing a content-protected BrowserWindow on Windows 10.

@electron-cation electron-cation bot added the new-pr 🌱 PR opened recently label Oct 7, 2021
@zcbenz zcbenz added semver/patch backwards-compatible bug fixes target/15-x-y labels Oct 11, 2021
@electron-cation electron-cation bot removed the new-pr 🌱 PR opened recently label Oct 11, 2021
@VerteDinde VerteDinde merged commit 95f81f5 into electron:main Oct 11, 2021
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release-clerk bot commented Oct 11, 2021

Release Notes Persisted

Fixed black window when screen capturing a content-protected BrowserWindow on Windows 10.

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trop bot commented Oct 11, 2021

I have automatically backported this PR to "15-x-y", please check out #31385

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trop bot commented Oct 11, 2021

I have automatically backported this PR to "16-x-y", please check out #31386

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zcbenz commented Oct 22, 2021

/trop run backports

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zcbenz commented Oct 22, 2021

/trop run backport

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trop bot commented Oct 22, 2021

The backport process for this PR has been manually initiated - here we go! :D

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trop bot commented Oct 22, 2021

I have automatically backported this PR to "13-x-y", please check out #31550

@trop trop bot removed the target/13-x-y label Oct 22, 2021
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trop bot commented Oct 22, 2021

I have automatically backported this PR to "14-x-y", please check out #31551

t57ser pushed a commit to t57ser/electron that referenced this pull request Oct 27, 2021
electron#31340)

Co-authored-by: Micha Hanselmann <mhanselmann@microsoft.com>
t57ser pushed a commit to t57ser/electron that referenced this pull request Oct 27, 2021
electron#31340)

Co-authored-by: Micha Hanselmann <mhanselmann@microsoft.com>
t57ser pushed a commit to t57ser/electron that referenced this pull request Oct 29, 2021
electron#31340)

Co-authored-by: Micha Hanselmann <mhanselmann@microsoft.com>
t57ser pushed a commit to t57ser/electron that referenced this pull request Oct 29, 2021
electron#31340)

Co-authored-by: Micha Hanselmann <mhanselmann@microsoft.com>
t57ser pushed a commit to t57ser/electron that referenced this pull request Oct 29, 2021
electron#31340)

Co-authored-by: Micha Hanselmann <mhanselmann@microsoft.com>
t57ser pushed a commit to t57ser/electron that referenced this pull request Oct 29, 2021
electron#31340)

Co-authored-by: Micha Hanselmann <mhanselmann@microsoft.com>
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[Bug]: setContentProtection issue after hiding and showing the BrowserWindow

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