Struct zng_view_api::window::HeadlessRequest

pub struct HeadlessRequest {
    pub id: WindowId,
    pub scale_factor: Factor,
    pub size: DipSize,
    pub render_mode: RenderMode,
    pub extensions: Vec<(ApiExtensionId, ApiExtensionPayload)>,
}

Configuration of a new headless surface.

Headless surfaces are always capture_mode enabled.

Fields

id: WindowId

ID that will identify the new headless surface.

The surface is identified by a WindowId so that some API methods can apply to both windows or surfaces, no actual window is created.

scale_factor: Factor

Scale for the layout units in this config.

size: DipSize

Surface area (viewport size).

render_mode: RenderMode

Render mode preference for this headless surface.

extensions: Vec<(ApiExtensionId, ApiExtensionPayload)>

Initial payload for API extensions.

The zng-view crate implements this by calling RendererExtension::configure with the payload.

Trait Implementations

impl Clone for HeadlessRequest

fn clone(&self) -> HeadlessRequest

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HeadlessRequest

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HeadlessRequest

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for HeadlessRequest

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.