Right edge Resize flickers

Server Jo 1 Reputation point
2023-01-22T19:54:35.37+00:00

This is a well known issue with the window desktop composer. Recently we see few apps that do not suffer from this issue. We want to inform Microsoft, that this is simply an OS bug. Why not fix this? Why would a sane composer refresh under a window whose right edge does not move one pixel?

Windows 11
Windows 11
A Microsoft operating system designed for productivity, creativity, and ease of use.
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  1. Castorix31 81,636 Reputation points
    2023-01-23T08:41:22.97+00:00

    It depends on the type of application

    For example, a UWP app like Calc does not flicker :

    calc_resize

  2. Limitless Technology 43,931 Reputation points
    2023-01-24T09:01:57.3433333+00:00

    Hello there,

    Found this theriy in one of the forum and might help you .

    By default, in modern Windows, your window is just a texture on the video card, and the desktop window manager is mapping that to a rectangle on the screen. You've seem to have done everything necessary to make sure that texture gets updated in one fell swoop.

    But when you resize the window, perhaps the desktop compositor immediately updates its geometry, causing the (still unchanged) texture to be appear in the new position on the screen. It's only later, when you do the paint, that the texture is updated.

    You can test this theory by temporarily turning off desktop compositing.

    Hope this resolves your Query !!

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