Struct windows_result::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<()>

Converts the HRESULT to Result<()>.

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

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>

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

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) -> Self

Maps a Win32 error code to an HRESULT value.

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

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

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

Formats the value using the given formatter.

impl From<Error> for HRESULT

fn from(error: Error) -> Self

Converts to this type from the input type.

impl From<HRESULT> for Error

fn from(code: HRESULT) -> Self

Converts to this type from the input type.

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

fn from(result: Result<T>) -> 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 Ord for HRESULT

fn cmp(&self, other: &HRESULT) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

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 PartialOrd for HRESULT

fn partial_cmp(&self, other: &HRESULT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for HRESULT

impl Eq for HRESULT

impl StructuralPartialEq for HRESULT