Struct IOHIDServiceClient 

pub struct IOHIDServiceClient { /* private fields */ }

Available on crate feature hidsystem only.

IOHIDServiceClient

IOHIDServiceClient serves as a client to the HID event system services. Users are able to copy/set specific properties (defined in IOKit/hid/IOHIDProperties.h ), and gather more information about the services available in the HID event system.

See also Apple’s documentation

Implementations

impl IOHIDServiceClient

pub unsafe fn set_property(&self, key: &CFString, property: &CFType) -> bool

Sets a property on the HID service.

Parameter service: the HID service to set the property on.

Parameter key: the property key to set. A list of keys can be found in HIDProperties.h .

Parameter property: the value to set the property.

Returns: Returns true on success.

Safety

property should be of the correct type.

pub fn property(&self, key: &CFString) -> Option<CFRetained<CFType>>

Copies a property from the HID service.

Parameter service: the HID service to copy the property from.

Parameter key: the property key to copy. A list of keys can be found in HIDProperties.h .

Returns: Returns a CFTypeRef of the property to be copied on success, otherwise NULL. Caller is responsible for calling CFRelease on the property.

impl IOHIDServiceClient

pub fn registry_id(&self) -> CFRetained<CFType>

Parameter service: the HID service to get the registry ID for.

Returns: Returns a CFTypeRef containing the registry ID for the service.

pub fn conforms_to(&self, usage_page: u32, usage: u32) -> bool

Available on crate feature libc only.

Determines if a HID service conforms to a specific usage page and usage.

Parameter usagePage: A usage page defined in IOHIDUsageTables.h .

Parameter usage: A usage defined in IOHIDUsageTables.h .

Returns: Returns true if the service conforms to the provided usage page and usage.

Methods from Deref<Target = CFType>

pub fn downcast_ref<T>(&self) -> Option<&T>

where T: ConcreteType,

Attempt to downcast the type to that of type T.

This is the reference-variant. Use CFRetained::downcast if you want to convert a retained type. See also ConcreteType for more details on which types support being converted to.

pub fn retain_count(&self) -> usize

Get the reference count of the object.

This function may be useful for debugging. You normally do not use this function otherwise.

Beware that some things (like CFNumbers, small CFStrings etc.) may not have a normal retain count for optimization purposes, and can return usize::MAX in that case.

Trait Implementations

impl AsRef<AnyObject> for IOHIDServiceClient

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<CFType> for IOHIDServiceClient

fn as_ref(&self) -> &CFType

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<IOHIDServiceClient> for IOHIDServiceClient

fn as_ref(&self) -> &Self

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<AnyObject> for IOHIDServiceClient

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<CFType> for IOHIDServiceClient

fn borrow(&self) -> &CFType

Immutably borrows from an owned value.

impl ConcreteType for IOHIDServiceClient

fn type_id() -> CFTypeID

Returns: Returns the CFTypeID of the IOHIDServiceClient class.

impl Debug for IOHIDServiceClient

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

Formats the value using the given formatter.

impl Deref for IOHIDServiceClient

type Target = CFType

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Hash for IOHIDServiceClient

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 IOHIDServiceClient

fn retain(&self) -> Retained<Self>

where Self: Sized,

Increment the reference count of the receiver.

impl PartialEq for IOHIDServiceClient

fn eq(&self, other: &Self) -> 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 RefEncode for IOHIDServiceClient

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Type for IOHIDServiceClient

fn retain(&self) -> CFRetained<Self>

where Self: Sized,

Increment the reference count of the receiver.

fn as_concrete_TypeRef(&self) -> &Self

👎Deprecated: this is redundant

Helper for easier transition from the core-foundation crate.

unsafe fn wrap_under_get_rule(ptr: *const Self) -> CFRetained<Self>

where Self: Sized,

👎Deprecated: use CFRetained::retain

Helper for easier transition from the core-foundation crate.

fn as_CFTypeRef(&self) -> &CFType

where Self: AsRef<CFType>,

👎Deprecated: this is redundant (CF types deref to CFType)

Helper for easier transition from the core-foundation crate.

unsafe fn wrap_under_create_rule(ptr: *const Self) -> CFRetained<Self>

where Self: Sized,

👎Deprecated: use CFRetained::from_raw

Helper for easier transition from the core-foundation crate.

impl Eq for IOHIDServiceClient