Struct SDL_MouseWheelEvent 

#[repr(C)]
pub struct SDL_MouseWheelEvent {
    pub type: SDL_EventType,
    pub reserved: Uint32,
    pub timestamp: Uint64,
    pub windowID: SDL_WindowID,
    pub which: SDL_MouseID,
    pub x: c_float,
    pub y: c_float,
    pub direction: SDL_MouseWheelDirection,
    pub mouse_x: c_float,
    pub mouse_y: c_float,
    pub integer_x: Sint32,
    pub integer_y: Sint32,
}

Mouse wheel event structure (event.wheel.*)

Availability

This struct is available since SDL 3.2.0.

Fields

type: SDL_EventType

SDL_EVENT_MOUSE_WHEEL

reserved: Uint32

timestamp: Uint64

In nanoseconds, populated using SDL_GetTicksNS()

windowID: SDL_WindowID

The window with mouse focus, if any

which: SDL_MouseID

The mouse instance id in relative mode or 0

x: c_float

The amount scrolled horizontally, positive to the right and negative to the left

y: c_float

The amount scrolled vertically, positive away from the user and negative toward the user

direction: SDL_MouseWheelDirection

Set to one of the SDL_MOUSEWHEEL_* defines. When FLIPPED the values in X and Y will be opposite. Multiply by -1 to change them back

mouse_x: c_float

X coordinate, relative to window

mouse_y: c_float

Y coordinate, relative to window

integer_x: Sint32

The amount scrolled horizontally, accumulated to whole scroll “ticks” (added in 3.2.12)

integer_y: Sint32

The amount scrolled vertically, accumulated to whole scroll “ticks” (added in 3.2.12)

Trait Implementations

impl Clone for SDL_MouseWheelEvent

fn clone(&self) -> SDL_MouseWheelEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SDL_MouseWheelEvent

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

Formats the value using the given formatter.

impl Default for SDL_MouseWheelEvent

fn default() -> SDL_MouseWheelEvent

Returns the “default value” for a type.

impl PartialEq for SDL_MouseWheelEvent

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

impl StructuralPartialEq for SDL_MouseWheelEvent