Struct PointerId 

pub struct PointerId(pub u32);

Stable per-pointer identifier within a frame. Mirrors the DOM PointerEvent.pointerId. Backends with only one pointer pass PointerId::PRIMARY; multi-touch backends keep IDs stable for the lifetime of a single contact.

The runtime currently routes only the primary contact; secondary IDs are reserved for future multi-touch / gesture work.

Tuple Fields

0: u32

Implementations

impl PointerId

pub const PRIMARY: PointerId

The conventional ID for backends that have only one pointer (mouse-only hosts, synthetic test events, the first touch contact when multi-touch IDs are not tracked).

Trait Implementations

impl Clone for PointerId

fn clone(&self) -> PointerId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PointerId

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

Formats the value using the given formatter.

impl Default for PointerId

fn default() -> PointerId

Returns the “default value” for a type.

impl Hash for PointerId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PointerId

fn eq(&self, other: &PointerId) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for PointerId

impl Eq for PointerId

impl StructuralPartialEq for PointerId