How can I prevent the cursor from moving out of the window?

[ghost]

I'm a mac user using maxos 12.1.

How can I prevent the cursor from going off the screen?

In my experience with other screen libraries I think there is such an option, but I couldn't find it in the docs.

[madsmtm]

Window::set_cursor_grab might be what you are looking for.

This doesn't work the web, though it probably could, see #1674

[ghost]

@madsmtm
Thank you for your comment.

I've already tried this feature, but it wasn't what I was looking for.

You may have misunderstood the specifications of Window :: set_cursor_grab, so I'd like to ask you just in case.
Is this a function that allows the cursor to move within the screen?

In my environment, when I used Window::set_cursor_grab, the cursor didn't move in the screen, so I couldn't understand the purpose of this function.

[ghost]

I'm sorry, I was misunderstanding.

As a workaround for # 1470, I also used WindowEvent for mouse events, so it seems that the cursor did not move within the screen even when using Window :: set_cursor_grab.

I solved it by using DeviceEvent for mouse events.

[maroider]

In my environment, when I used Window::set_cursor_grab, the cursor didn't move in the screen, so I couldn't understand the purpose of this function.

This is a known (and documented) limitation with Window::set_cursor_grab on macOS. It lets you move the cursor around on Linux and Windows.

[ghost]

@maroider

Sorry.
I thought I was reading the docs, but looking only at the content here, I didn't think the cursor would move on the screen when using DeviceEvent, so I thought it was a strange feature.
https://docs.rs/winit/latest/winit/window/struct.Window.html#method.set_cursor_grab