measure menu bar height

[extrawurst]

I want to place a window right below the main menu bar. is there a way to query that height reliably?

[ocornut]

You should be able to call GetWindowSize() from within BeginMainMenuBar() / EndMainMenuBar().

[extrawurst]

awesome, thanks!

[ocornut]

Linking to #1439 for search purposes, note that if you increase style.DisplaySafeAreaPadding (generally for TV set) the main menu bar may become taller. So using GetWindowSize() as noted here is the correct-er solution for measuring the size of a menu bar (some people have been using FontSize + FramePadding.y * 2 aka GetFrameHeight()). It shouldn't be an issue as very few people actually use style.DisplaySafeAreaPadding (and certainly not on computer platforms).

[mcmara]

I noted that if the call to GetWindowSize() is done from within BeginMenuBar() / EndMenuBar() it returns a value (in my case 32) which is different from a call done from within BeginMainMenuBar() / EndMainMenuBar() (in my case 24).
Is this normal? The 2 menus appear of the same height, so I was expecting the same value.

Edit: instead, calling GetFrameHeight() from within BeginMenuBar() / EndMenuBar() seems returning the correct value (24 in my case).