[Bug]: Frameless windows have no animation on Windows

[mxmou]

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a bug report that matches the one I want to file, without success.

Electron Version

17.0.1

What operating system are you using?

Windows

Operating System Version

Windows 11 (21H2, build 22000.493)

What arch are you using?

x64

Last Known Working Electron version

16.0.8

Expected Behavior

Frameless windows would show an animation when minimized or maximized.

Actual Behavior

There is no animation.

Testcase Gist URL

https://gist.github.com/mxmou/cb865ea440a2bbbd21673fa40cf39bb4

Additional Information

No response

[pejman1]

same issue in electron version 16.0.9 and 17.1.0 In Windows 10

[itsgoofer]

Same issue in electron 15.4.0.

[McSon2]

Same here

[xpirt]

I confirm the issue happening on 17.1.1 version.

[mlaurencin]

As stated in #33152, #32692 might have caused the issue and would be a good place to start for resolving it.

[Levminer]

Still present in 18.0.0.

[pejman1]

@ckerr
it is really important bug after two major releases
the issue has not fixed yet . version 18.0.1

[DogFoxX]

I also upgraded to 18.0.1 and still had this issue... but after trying (and not succeeding) this answer on #33152, the issue resolved itself.
I cannot say what happened, but I removed the code suggested by that answer, and animations for Minimize and Maximize was back. Could it be that there is underlying code for the animations that are being ignored?

[pejman1]

I also upgraded to 18.0.1 and still had this issue... but after trying (and not succeeding) this answer on #33152, the issue resolved itself. I cannot say what happened, but I removed the code suggested by that answer, and animations for Minimize and Maximize was back. Could it be that there is underlying code for the animations that are being ignored?

it has been fixed in the latest version 18.0.2

[DogFoxX]

@pejman1 Ah right, thanx. Just did the update.

[mikeseese]

To gather all the information in one spot, as I currently understand, #33599 fixes this issue. Below is how this PR has propagated to various versions

Fix released:

• 17.4.0 (fix: revert "fix: some frameless windows showing a frame on Windows" #33611)
• 18.0.2 (fix: revert "fix: some frameless windows showing a frame on Windows" #33610)

Fix merged but not released:

• 16.x.y (fix: revert "fix: some frameless windows showing a frame on Windows" #33607)
• 19.x.y (fix: revert "fix: some frameless windows showing a frame on Windows" #33609)

Fix pending merge:

• 15.x.y (revert: some frameless windows showing a frame on Windows #33608)

[mbeissinger]

I'm still seeing this issue on version 21.2.11

[mikeseese]

@mbeissinger you should open a new issue for that