Struct HResult 

#[repr(transparent)]
pub struct HResult(pub i32);

COM HRESULT.

Layout-compatible with i32 and with the windows-core crate’s HRESULT(pub i32) type. Conversions to and from windows_core::HRESULT are provided on Windows.

Tuple Fields

0: i32

Implementations

impl HResult

pub const S_OK: Self

S_OK — success, no further information.

pub const S_FALSE: Self

S_FALSE — success with a “false” semantic (e.g. operation completed but the queried condition does not hold).

pub const E_NOTIMPL: Self

E_NOTIMPL — function is not implemented.

pub const E_NOINTERFACE: Self

E_NOINTERFACE — QueryInterface could not produce the requested interface.

pub const E_POINTER: Self

E_POINTER — invalid (typically null) pointer argument.

pub const E_FAIL: Self

E_FAIL — unspecified failure.

pub const E_UNEXPECTED: Self

E_UNEXPECTED — catastrophic failure (last-resort code).

pub const E_OUTOFMEMORY: Self

E_OUTOFMEMORY — allocation failure.

pub const E_INVALIDARG: Self

E_INVALIDARG — one or more arguments are invalid.

pub const CLASS_E_CLASSNOTAVAILABLE: Self

CLASS_E_CLASSNOTAVAILABLE — DllGetClassObject does not recognise the requested CLSID.

pub const CLASS_E_NOAGGREGATION: Self

CLASS_E_NOAGGREGATION — class refuses aggregation.

pub const APOERR_INVALID_INPUT_DATA: Self

APOERR_INVALID_INPUT_DATA — input data does not match the format negotiated during LockForProcess.

pub const APOERR_FORMAT_NOT_SUPPORTED: Self

APOERR_FORMAT_NOT_SUPPORTED — proposed format is not supported by this APO.

pub const APOERR_INVALID_API_VERSION: Self

APOERR_INVALID_API_VERSION — caller is requesting an unsupported APO API revision.

pub const APOERR_NUM_CONNECTIONS_INVALID: Self

APOERR_NUM_CONNECTIONS_INVALID — the number of input or output connections is not supported.

pub const APOERR_NOT_LOCKED: Self

APOERR_NOT_LOCKED — operation is only valid between LockForProcess and UnlockForProcess.

pub const APOERR_ALREADY_LOCKED: Self

APOERR_ALREADY_LOCKED — APO is already locked.

pub const fn is_ok(self) -> bool

Returns true if the underlying value is non-negative.

pub const fn is_err(self) -> bool

Returns true if the underlying value is negative.

pub const fn ok(self) -> Result<(), Self>

Converts to a Result<(), Self>, mapping the success codes (S_OK, S_FALSE, and any other non-negative value) to Ok.

Trait Implementations

impl Clone for HResult

fn clone(&self) -> HResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HResult

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

Formats the value using the given formatter.

impl Display for HResult

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

Formats the value using the given formatter.

impl From<HResult> for i32

fn from(value: HResult) -> Self

Converts to this type from the input type.

impl From<i32> for HResult

fn from(value: i32) -> Self

Converts to this type from the input type.

impl Hash for HResult

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 HResult

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

impl Eq for HResult

impl StructuralPartialEq for HResult