Struct WindowBackend 

pub struct WindowBackend {
    pub id: u32,
    /* private fields */
}

Data associated to a specific window for overlay rendering.

Fields

id: u32

Unique identifier for the window.

Implementations

impl WindowBackend

pub fn reset(&self)

Reset the backend state. This reset all set user settable state.

pub fn gpu_luid(&self) -> GpuLuid

Get the locally unique identifier for the GPU. This is the GPU adapter used by the window to present to surface. Overlay surface texture must be created with this GPU. Otherwise, surface cannot be rendered.

pub fn update_surface(&self, handle: Option<NonZeroU32>) -> Result<()>

Update overlay surface using the given shared handle.

pub fn layout(&self) -> OverlayLayout

Get overlay layout.

pub fn update_layout(&self, f: impl FnOnce(&mut OverlayLayout))

Update overlay layout.

pub fn invalidate_layout(&self)

Invalidate layout and recompute position.

pub fn listen_input(&self, flags: ListenInputFlags)

Set which input events are being listened to.

pub fn set_blocking_cursor(&self, cursor: Option<Cursor>)

Sets the cursor to be displayed while input is blocked.

pub fn block_input(&self, block: bool)

Blocks or unblocks input for the window.

pub fn execute_gui(&self, f: impl FnOnce(&WindowBackend) + Send + 'static)

Execute function on the GUI thread. Calling execute_gui inside the closure will deadlock.