Struct WheelEvent 

pub struct WheelEvent {
    pub dx: i32,
    pub dy: i32,
    pub display: i32,
}

Fields

dx: i32

The value indicating how much the mouse wheel is rotated. Scaled so that 120 equals to 1 wheel click. (120 is chosen as a multiplier often used to represent wheel movements less than 1 wheel click. e.g. https://doc.qt.io/qt-5/qwheelevent.html#angleDelta) Positive delta value is assigned to dx when the top of wheel is moved to left. Similarly positive delta value is assigned to dy when the top of wheel is moved away from the user.

dy: i32

display: i32

The display device where the mouse event occurred. Omitting or using the value 0 indicates the main display.

Trait Implementations

impl Clone for WheelEvent

fn clone(&self) -> WheelEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WheelEvent

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

Formats the value using the given formatter.

impl Default for WheelEvent

fn default() -> Self

Returns the “default value” for a type.

impl Hash for WheelEvent

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 Message for WheelEvent

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for WheelEvent

fn eq(&self, other: &WheelEvent) -> 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 WheelEvent

impl Eq for WheelEvent

impl StructuralPartialEq for WheelEvent