InputEvent

sweetacid_evdev

Struct InputEvent 

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pub struct InputEvent(/* private fields */);
Expand description

A wrapped libc::input_event returned by the input device via the kernel.

input_event is a struct containing four fields:

  • time: timeval
  • type_: u16
  • code: u16
  • value: s32

The meaning of the “code” and “value” fields will depend on the underlying type of event.

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impl InputEvent

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pub fn timestamp(&self) -> SystemTime

Returns the timestamp associated with the event.

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pub fn event_type(&self) -> EventType

Returns the type of event this describes, e.g. Key, Switch, etc.

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pub fn code(&self) -> u16

Returns the raw “code” field directly from input_event.

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pub fn kind(&self) -> InputEventKind

A convenience function to return self.code() wrapped in a certain newtype determined by the type of this event.

This is useful if you want to match events by specific key codes or axes. Note that this does not capture the event value, just the type and code.

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pub fn value(&self) -> i32

Returns the raw “value” field directly from input_event.

For keys and switches the values 0 and 1 map to pressed and not pressed respectively. For axes, the values depend on the hardware and driver implementation.

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pub fn new(type_: EventType, code: u16, value: i32) -> Self

Create a new InputEvent. Only really useful for emitting events on virtual devices.

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pub fn new_now(type_: EventType, code: u16, value: i32) -> Self

Create a new InputEvent with the time field set to “now” on the system clock.

Note that this isn’t usually necessary simply for emitting events on a virtual device, as even though InputEvent::new creates an input_event with the time field as zero, the kernel will update input_event.time when it emits the events to any programs reading the event “file”.

Trait Implementations§

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impl AsRef<input_event> for InputEvent

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fn as_ref(&self) -> &input_event

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for InputEvent

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fn clone(&self) -> InputEvent

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for InputEvent

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

Formats the value using the given formatter. Read more
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impl From<input_event> for InputEvent

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fn from(raw: input_event) -> Self

Converts to this type from the input type.
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impl Copy for InputEvent

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fn tap_ref_mut<F, R>(self, func: F) -> Self
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