Windows 10: Why does my Peek to preview randomely stop working?

Discus and support Why does my Peek to preview randomely stop working? in Windows 10 Customization to solve the problem; I'm using Windows 10 on Desktop and I've noticed this bug for a few months now that every so often the Peek to preview feature from hovering the mouse... Discussion in 'Windows 10 Customization' started by NotLenny, Aug 17, 2022.

  1. NOTLENNY
    NotLenny Win User

    Why does my Peek to preview randomely stop working?


    I'm using Windows 10 on Desktop and I've noticed this bug for a few months now that every so often the Peek to preview feature from hovering the mouse over any programs located on the taskbar stops working. When this does happen the only thing that fixes it is a system restart. I have the 'Peak to preview' option enabled in both the Taskbar settings and in the performance options.Does anybody know why this bug occurs? And what I can do to stop it from happening?

    :)
     
    NotLenny, Aug 17, 2022
    #1
  2. TRANCX
    trancx Win User

    Failed to disable Peek Preview in Windows 11

    Hi, everyone!

    To implement some custom fetatures I need to disable peek preview for the window. So I call DwmSetWindowAttribute with DWMWA_DISALLOW_PEEK set to True to disallow peek preview. It works well in Win7 and Win10 but in my newest Win11 machine, it sill shows peek preview when the mouse hovers over the window's thumbnail in the taskbar.

    And I use a demo from VS2019 to reproduce this bug and still it works well in Window 7 and Window 10, but not in Windows 11.

    I also read the SDK document and I don't find changes relevant to this behavior. Do I misuse this interface? If you know the right way to disable it, let me know plz~~

    Steps to reproduce the bug

    1. Open Visual Studio 2019 and New C++ Desktop Project.
    2. With a built-in demo, disable peek preview with DwmSetWindowAttribute
    1. Add link dependency dwmapi.lib
    2. Compile and Run
    3. Window shows but it still shows peek preview.
    Expected behavior

    No peek preview in Windows 11 22000.829
     
    trancx, Aug 17, 2022
    #2
  3. BURTSHAH
    BurtShah Win User
    Aero Peek is not Working

    I cannot see the Aero Peek. In my Taskbar and Start Menu Properties window, under Preview desktop with Aero Peek, the box next to Use Aero Peek to preview the desktop is checked but is grayed out. Please help.
     
    BurtShah, Aug 17, 2022
    #3
  4. MARTIN BAR
    Martin Bar Win User

    Why does my Peek to preview randomely stop working?

    Windows peek/taskbar Thumbnail not working (Help)

    Hi Elias,

    We may need to change some settings to enable the peek option. Follow the steps below:

    • Open Settings.
    • Click Personalization.
    • Select Taskbar on the left pane.
    • Locate Use Peek to preview the desktop when you move your mouse to the Show desktop button at the end of the taskbar option, turn it
      ON.

    Why does my Peek to preview randomely stop working? 4e6ea8e8-0a25-4147-98c9-70329ee94095.png


    Let us know if you need anything else. We're here to help.
     
    Martin Bar, Aug 17, 2022
    #4
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Why does my Peek to preview randomely stop working?

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