Menu closing on hover (Was: How to draw menu-item to the left from menu in right-aligned sidebar?) about imgui

[rokups]

It looks like this is caused by some kind of a race condition when mouse cursor is crossing a boundary between two viewport windows. moving_toward_child_menu gets sometimes (but not always!) set to false. As a temporary solution, moving tb and tc points (here) into submenu a little fixes this behavior.

[ocornut]

Hello, thanks for posting.

so when i trying move cursor to select item, sometimes, it closes instantly because losing the hovering of menu.

This is an XY Problem question. We should absolutely focus on this. If you have viewports enabled, menus can appear on the right. Should focus on why it closes instantly. Can you make a video of it ?

Can you recreate the issue when using unmodified example_win32_dx9 example ?

[OneForgottenMan]

GIF of this issue in my app:

GIF of this issue in example_win32_dx9:

[ocornut]

We pushed b3ea01d and 03fc9a0, the combination of those should fix this bug.

We basically always (and still have) a couple of subtle issue with using BeginMenu() from a regular window that isn't a menu or a popup. Some are tricky to fix some not. Working on this I fixed another, it wasn't possible to open such menu with the Right Arrow (9445776). And it is still not possible to close them via Left Arrow.

Thanks for reporting.
Please let us know if for some reason things aren't fixed for you.