Struct windows::core::HRESULT

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

An error code value returned by most COM functions.

Tuple Fields

0: i32

Implementations

impl HRESULT

pub const fn is_ok(self) -> bool

Returns true if self is a success code.

pub const fn is_err(self) -> bool

Returns true if self is a failure code.

pub fn unwrap(self)

Asserts that self is a success code.

This will invoke the panic! macro if self is a failure code and display the HRESULT value for diagnostics.

pub fn ok(self) -> Result<(), Error>

Converts the HRESULT to Result<()>.

pub fn map<F, T>(self, op: F) -> Result<T, Error>

where F: FnOnce() -> T,

Calls op if self is a success code, otherwise returns HRESULT converted to Result<T>.

pub fn and_then<F, T>(self, op: F) -> Result<T, Error>

where F: FnOnce() -> Result<T, Error>,

Calls op if self is a success code, otherwise returns HRESULT converted to Result<T>.

pub fn message(&self) -> String

The error message describing the error.

pub const fn from_win32(error: u32) -> HRESULT

Maps a Win32 error code to an HRESULT value.

pub const fn from_nt(error: i32) -> HRESULT

Maps an NT error code to an HRESULT value.

Trait Implementations

impl Clone for HRESULT

fn clone(&self) -> HRESULT

Returns a copy 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<(), Error>

Formats the value using the given formatter.

impl Default for HRESULT

fn default() -> HRESULT

Returns the “default value” for a type.

impl Display for HRESULT

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

Formats the value using the given formatter.

impl From<Error> for HRESULT

fn from(error: Error) -> HRESULT

Converts to this type from the input type.

impl From<HRESULT> for Error

fn from(code: HRESULT) -> Error

Converts to this type from the input type.

impl From<NTSTATUS> for HRESULT

fn from(value: NTSTATUS) -> Self

Converts to this type from the input type.

impl From<RPC_STATUS> for HRESULT

fn from(value: RPC_STATUS) -> Self

Converts to this type from the input type.

impl<T> From<Result<T, Error>> for HRESULT

fn from(result: Result<T, Error>) -> HRESULT

Converts to this type from the input type.

impl From<WIN32_ERROR> for HRESULT

fn from(value: WIN32_ERROR) -> Self

Converts to this type from the input type.

impl PartialEq for HRESULT

fn eq(&self, other: &HRESULT) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method 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