Enum WindowSignal 

pub enum WindowSignal {
    PointerEnter(Box<dyn FnMut(&WindowHandle) + Send + 'static>),
    PointerLeave(Box<dyn FnMut(&WindowHandle) + Send + 'static>),
    Focused(Box<dyn FnMut(&WindowHandle) + Send + 'static>),
    TitleChanged(Box<dyn FnMut(&WindowHandle, &str) + Send + 'static>),
    LayoutModeChanged(Box<dyn FnMut(&WindowHandle, LayoutMode) + Send + 'static>),
    Created(Box<dyn FnMut(&WindowHandle) + Send + 'static>),
    Destroyed(Box<dyn FnMut(&WindowHandle, &str, &str) + Send + 'static>),
}

Signals relating to window events.

Variants

PointerEnter(Box<dyn FnMut(&WindowHandle) + Send + 'static>)

The pointer entered a window.

Callbacks receive the window the pointer entered.

PointerLeave(Box<dyn FnMut(&WindowHandle) + Send + 'static>)

The pointer left a window.

Callbacks receive the window the pointer left.

Focused(Box<dyn FnMut(&WindowHandle) + Send + 'static>)

The window got keyboard focus.

Callbacks receive the newly focused window.

TitleChanged(Box<dyn FnMut(&WindowHandle, &str) + Send + 'static>)

A window’s title changed.

Callbacks receive the window and new title.

LayoutModeChanged(Box<dyn FnMut(&WindowHandle, LayoutMode) + Send + 'static>)

A window’s layout mode changed.

Callbacks receive the window and new layout mode.

Created(Box<dyn FnMut(&WindowHandle) + Send + 'static>)

A window was created (i.e., mapped for the first time).

Callbacks receive the newly created window.

Destroyed(Box<dyn FnMut(&WindowHandle, &str, &str) + Send + 'static>)

A window was closed.

Callbacks receive the window that was just closed, its title, and its app_id. Note: The window handle is no longer valid as the window was destroyed. Any subsequent operations on this handle will likely fail.