Regression: Alt key remains locked in inactive blender window #103722

New Issue

Dago · 2023-01-07T20:31:08+01:00

Dago commented

2023-01-07 20:31:08 +01:00

System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: AMD Radeon RX 6800 ATI Technologies Inc. 4.5.0 Core Profile Context 22.11.2.221130

Blender Version
Broken: version: 3.4.1, branch: blender-v3.4-release, commit date: 2022-12-19 17:00, hash: 55485cb379
Worked: 3.3
Caused by 8bc76bf4b9

Short description of error
Alt key remains locked in inactive blender window when alt tab is used to switch to another application

Exact steps for others to reproduce the error

Open default blender scene
Open another application (terminal or text file for example. and resize it so main blender window is also visible)
Now select blender window (scroll, or perform other operation to verify window is active)
Alt + tab to switch to the application window from step 2

Hover mouse over viewport area of Blender window and scroll (notice playback is moving instead of zooming the viewport)

Video: F14138521

**System Information** Operating system: Windows-10-10.0.19044-SP0 64 Bits Graphics card: AMD Radeon RX 6800 ATI Technologies Inc. 4.5.0 Core Profile Context 22.11.2.221130 **Blender Version** Broken: version: 3.4.1, branch: blender-v3.4-release, commit date: 2022-12-19 17:00, hash: `55485cb379` Worked: 3.3 Caused by 8bc76bf4b9 **Short description of error** Alt key remains locked in inactive blender window when alt tab is used to switch to another application **Exact steps for others to reproduce the error** - Open default blender scene - Open another application (terminal or text file for example. and resize it so main blender window is also visible) - Now select blender window (scroll, or perform other operation to verify window is active) - Alt + tab to switch to the application window from step 2 # Hover mouse over viewport area of Blender window and scroll (notice playback is moving instead of zooming the viewport) Video: [F14138521](https://archive.blender.org/developer/F14138521/2023.01.11-01.31.02.mp4)

Dago commented

2023-01-07 20:31:08 +01:00

Added subscriber: @PAL123

Pratik Borhade commented

2023-01-10 04:54:23 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2023-01-10 04:54:23 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Pratik Borhade commented

2023-01-10 04:54:23 +01:00

Hi, thanks for the report. Do you mean you can still perform operations in inactive window?
Could you elaborate the issue and reproducing steps more precisely?

Hi, thanks for the report. Do you mean you can still perform operations in inactive window? Could you elaborate the issue and reproducing steps more precisely?

Dago commented

2023-01-11 01:39:49 +01:00

2023.01.11-01.31.02.mp4
here you have a pictorial representation, i opened blender 3.4.1 and tab with alt tab out, in the example for irfanview. while irfanview is active i scroll my mouse wheel over the inactive blender window and this moves the keyframe. this actually only happens if you use alt + mw scroll.

then i use blender 3.3.2 where i do the same procedure again and there the mw scroll in the 3d viewport only zooms because no alt key is active.

another thing in 2D Animation
It has also happened to me that when I tab out in new file 2D Animation in Blender with alt+tab, that when I tab back into the Blender window, the tab is also active, it makes the strokes as if alt were active (straight stroke) and then I have to press alt once so that alt+ draw stroke is deactivated again. but I can't easily reproduce this problem

[2023.01.11-01.31.02.mp4](https://archive.blender.org/developer/F14138521/2023.01.11-01.31.02.mp4) here you have a pictorial representation, i opened blender 3.4.1 and tab with alt tab out, in the example for irfanview. while irfanview is active i scroll my mouse wheel over the inactive blender window and this moves the keyframe. this actually only happens if you use alt + mw scroll. then i use blender 3.3.2 where i do the same procedure again and there the mw scroll in the 3d viewport only zooms because no alt key is active. another thing in 2D Animation It has also happened to me that when I tab out in new file 2D Animation in Blender with alt+tab, that when I tab back into the Blender window, the tab is also active, it makes the strokes as if alt were active (straight stroke) and then I have to press alt once so that alt+ draw stroke is deactivated again. but I can't easily reproduce this problem

Dago commented

2023-01-11 02:05:49 +01:00

but here I was able to record it again, sometimes it happens and sometimes it doesn't....in this case I used crtl to erase and then tabed out

and sometimes it's even like that, after tabbing out, I suddenly can't draw at all anymore, then I can't move my view smoothly anymore, it lags and then I have to restart Blender
2023.01.11-02.03.55.mp4

but here I was able to record it again, sometimes it happens and sometimes it doesn't....in this case I used crtl to erase and then tabed out and sometimes it's even like that, after tabbing out, I suddenly can't draw at all anymore, then I can't move my view smoothly anymore, it lags and then I have to restart Blender [2023.01.11-02.03.55.mp4](https://archive.blender.org/developer/F14138548/2023.01.11-02.03.55.mp4)

Dago commented

2023-01-11 02:10:42 +01:00

here again as in the previous video, twice it happened again, it only happens sometimes.
but I have to say that I use a draw tablet in 2D animation, but in the very first video when modeling, the draw tablet was not connected to the pc.

and in blender 3.3.2 none of the mentioned problems happen to me
2023.01.11-02.08.47.mp4

here again as in the previous video, twice it happened again, it only happens sometimes. but I have to say that I use a draw tablet in 2D animation, but in the very first video when modeling, the draw tablet was not connected to the pc. and in blender 3.3.2 none of the mentioned problems happen to me [2023.01.11-02.08.47.mp4](https://archive.blender.org/developer/F14138552/2023.01.11-02.08.47.mp4)

Pratik Borhade commented

2023-01-11 07:31:49 +01:00

Changed status from 'Needs User Info' to: 'Confirmed'

Pratik Borhade commented

2023-01-11 07:31:49 +01:00

Hi, thanks for the video demonstration. I can confirm now.

Pratik Borhade changed title from ~~tab key active in inactive blender window when tab out since 3.4~~ to Regression: Alt key remains locked in inactive blender window

2023-01-11 08:11:14 +01:00

Pratik Borhade commented

2023-01-11 08:11:48 +01:00

Added subscriber: @ideasman42

Pratik Borhade commented

2023-01-11 08:11:48 +01:00

Caused by 8bc76bf4b9
@ideasman42 ^

Caused by 8bc76bf4b9 @ideasman42 ^

Harley Acheson commented

2023-01-20 19:30:13 +01:00

Added subscriber: @Harley

Harley Acheson commented

2023-01-20 19:30:13 +01:00

Personally would not have this set as high-priority, despite the change in behavior caused by that commit.

This reported bad behavior is only while the Blender window is not active, does not focus, which should not be considered a usable state. Make the blender window active and it works as expected, which is by platform design.

Personally would not have this set as high-priority, despite the change in behavior caused by that commit. This reported bad behavior is only **while** the Blender window is not active, does not focus, which should not be considered a usable state. Make the blender window active and it works as expected, which is by platform design.

blender-admin commented

2023-01-22 10:48:17 +01:00

This issue was referenced by 00ac2ddca2

This issue was referenced by 00ac2ddca23ee7391da775563edb5685ccbf6a33

Campbell Barton commented

2023-01-22 10:51:15 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Campbell Barton closed this issue

2023-01-22 10:51:15 +01:00

Campbell Barton self-assigned this 2023-01-22 10:51:15 +01:00

Campbell Barton commented

2023-01-22 10:53:28 +01:00