Struct BeginFrameReturns 

pub struct BeginFrameReturns<'a> { /* private fields */ }

Sends a BeginFrame to the target and returns when the frame was completed. Optionally captures a screenshot from the resulting frame. Requires that the target was created with enabled BeginFrameControl. Designed for use with –run-all-compositor-stages-before-draw, see also https://goo.gle/chrome-headless-rendering for more background.

Implementations

impl<'a> BeginFrameReturns<'a>

pub fn builder(has_damage: bool) -> BeginFrameReturnsBuilder<'a>

Creates a builder for this type with the required parameters:

• has_damage: Whether the BeginFrame resulted in damage and, thus, a new frame was committed to the display. Reported for diagnostic uses, may be removed in the future.

pub fn has_damage(&self) -> bool

Whether the BeginFrame resulted in damage and, thus, a new frame was committed to the display. Reported for diagnostic uses, may be removed in the future.

pub fn screenshot_data(&self) -> Option<&str>

Base64-encoded image data of the screenshot, if one was requested and successfully taken. (Encoded as a base64 string when passed over JSON)

Trait Implementations

impl<'a> Clone for BeginFrameReturns<'a>

fn clone(&self) -> BeginFrameReturns<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for BeginFrameReturns<'a>

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

Formats the value using the given formatter.

impl<'a> Default for BeginFrameReturns<'a>

fn default() -> BeginFrameReturns<'a>

Returns the “default value” for a type.

impl<'de, 'a> Deserialize<'de> for BeginFrameReturns<'a>

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a> Serialize for BeginFrameReturns<'a>

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

where __S: Serializer,

Serialize this value into the given Serde serializer.