Struct windows_core::PROPVARIANT

pub struct PROPVARIANT(/* private fields */);

A PROPVARIANT (PROPVARIANT) is a container that can store different types of values.

Implementations

impl PROPVARIANT

pub fn new() -> Self

Create an empty PROPVARIANT.

This function does not allocate memory.

pub const fn is_empty(&self) -> bool

Returns true if the PROPVARIANT is empty.

Trait Implementations

impl Clone for PROPVARIANT

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PROPVARIANT

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

Formats the value using the given formatter.

impl Default for PROPVARIANT

fn default() -> Self

Returns the “default value” for a type.

impl Display for PROPVARIANT

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

Formats the value using the given formatter.

impl Drop for PROPVARIANT

fn drop(&mut self)

Executes the destructor for this type.

impl From<&str> for PROPVARIANT

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<BSTR> for PROPVARIANT

fn from(value: BSTR) -> Self

Converts to this type from the input type.

impl From<IUnknown> for PROPVARIANT

fn from(value: IUnknown) -> Self

Converts to this type from the input type.

impl From<bool> for PROPVARIANT

fn from(value: bool) -> Self

Converts to this type from the input type.

impl From<f32> for PROPVARIANT

fn from(value: f32) -> Self

Converts to this type from the input type.

impl From<f64> for PROPVARIANT

fn from(value: f64) -> Self

Converts to this type from the input type.

impl From<i16> for PROPVARIANT

fn from(value: i16) -> Self

Converts to this type from the input type.

impl From<i32> for PROPVARIANT

fn from(value: i32) -> Self

Converts to this type from the input type.

impl From<i64> for PROPVARIANT

fn from(value: i64) -> Self

Converts to this type from the input type.

impl From<i8> for PROPVARIANT

fn from(value: i8) -> Self

Converts to this type from the input type.

impl From<u16> for PROPVARIANT

fn from(value: u16) -> Self

Converts to this type from the input type.

impl From<u32> for PROPVARIANT

fn from(value: u32) -> Self

Converts to this type from the input type.

impl From<u64> for PROPVARIANT

fn from(value: u64) -> Self

Converts to this type from the input type.

impl From<u8> for PROPVARIANT

fn from(value: u8) -> Self

Converts to this type from the input type.

impl PartialEq for PROPVARIANT

fn eq(&self, other: &Self) -> 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 TryFrom<&PROPVARIANT> for BSTR

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&PROPVARIANT> for IUnknown

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&PROPVARIANT> for VARIANT

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&PROPVARIANT> for bool

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&PROPVARIANT> for f64

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&PROPVARIANT> for i16

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&PROPVARIANT> for i32

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&PROPVARIANT> for i64

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&PROPVARIANT> for u16

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&PROPVARIANT> for u32

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&PROPVARIANT> for u64

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.

impl TryFrom<&VARIANT> for PROPVARIANT

type Error = Error

The type returned in the event of a conversion error.

fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.

impl Eq for PROPVARIANT