MenuBar changes global coordinate system origin (y=0 shifts downward by 24px), making it difficult to toggle MenuBar on/off

[kirtan2605]

Hi all,

I’ve run into an issue with the MenuBar component that affects layout consistency.

When a MenuBar is present, the global coordinate system appears to shift so that y = 0 is located below the MenuBar.
However, when no MenuBar is used, y = 0 corresponds to the very top of the window, as expected.

This becomes a problem when trying to toggle the MenuBar on and off at runtime. Because enabling the MenuBar changes the coordinate origin, the rest of the UI gets displaced downward, causing the entire application layout to shift unexpectedly.

Expected behavior:
Ideally, adding or removing a MenuBar should not rebase the global coordinate system in a way that forces the rest of the UI to move, unless explicitly requested.

Request / Questions:

1. Is it possible to prevent the MenuBar from changing the reference coordinate system?

2. If not currently possible, could there be an option—perhaps a property or style flag—to fix the coordinate origin so that the MenuBar does not affect the layout of the rest of the application?

3. Alternatively, is there a recommended workaround for toggling a MenuBar without causing layout distortion?

This behavior makes it difficult to create applications with dynamically shown/hidden menu bars, as the UI jumps upon activation.

Thanks for considering this! Let me know if I can provide a minimal reproducible example.