VARIANT

windows::Win32::System::Variant

Struct VARIANT

#[repr(C)]pub struct VARIANT {
    pub Anonymous: VARIANT_0,
}

Fields§

§Anonymous: VARIANT_0

Implementations§

impl VARIANT

pub fn vt(&self) -> VARENUM

pub fn is_empty(&self) -> bool

Trait Implementations§

impl Clone for VARIANT

fn clone(&self) -> Self

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for VARIANT

Available on crate feature Win32_System_Com_StructuredStorage only.

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

Formats the value using the given formatter. Read more

impl Default for VARIANT

Available on crate features Win32_System_Com and Win32_System_Ole only.

fn default() -> Self

Returns the “default value” for a type. Read more

impl Display for VARIANT

Available on crate feature Win32_System_Com_StructuredStorage only.

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

Formats the value using the given formatter. Read more

impl Drop for VARIANT

fn drop(&mut self)

Executes the destructor for this type. Read more

impl From<&str> for VARIANT

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<BSTR> for VARIANT

fn from(value: BSTR) -> Self

Converts to this type from the input type.

impl From<IDispatch> for VARIANT

fn from(value: IDispatch) -> Self

Converts to this type from the input type.

impl From<IUnknown> for VARIANT

fn from(value: IUnknown) -> Self

Converts to this type from the input type.

impl From<bool> for VARIANT

fn from(value: bool) -> Self

Converts to this type from the input type.

impl From<f32> for VARIANT

fn from(value: f32) -> Self

Converts to this type from the input type.

impl From<f64> for VARIANT

fn from(value: f64) -> Self

Converts to this type from the input type.

impl From<i16> for VARIANT

fn from(value: i16) -> Self

Converts to this type from the input type.

impl From<i32> for VARIANT

fn from(value: i32) -> Self

Converts to this type from the input type.

impl From<i64> for VARIANT

fn from(value: i64) -> Self

Converts to this type from the input type.

impl From<i8> for VARIANT

fn from(value: i8) -> Self

Converts to this type from the input type.

impl From<u16> for VARIANT

fn from(value: u16) -> Self

Converts to this type from the input type.

impl From<u32> for VARIANT

fn from(value: u32) -> Self

Converts to this type from the input type.

impl From<u64> for VARIANT

fn from(value: u64) -> Self

Converts to this type from the input type.

impl From<u8> for VARIANT

fn from(value: u8) -> Self

Converts to this type from the input type.

impl PartialEq for VARIANT

Available on crate feature Win32_System_Com_StructuredStorage only.

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

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 TryFrom<&PROPVARIANT> for VARIANT

Available on crate feature Win32_System_Com_StructuredStorage only.

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 BSTR

Available on crate feature Win32_System_Com_StructuredStorage only.

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for IDispatch

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for IUnknown

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for PROPVARIANT

Available on crate features Win32_System_Variant and Win32_System_Com and Win32_System_Ole only.

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for bool

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for f64

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for i16

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for i32

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for i64

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for u16

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for u32

type Error = Error

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<&VARIANT> for u64

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 VARIANT

Available on crate feature Win32_System_Com_StructuredStorage only.

Auto Trait Implementations§

impl Freeze for VARIANT

impl RefUnwindSafe for VARIANT

impl !Send for VARIANT

impl !Sync for VARIANT

impl Unpin for VARIANT

impl UnwindSafe for VARIANT

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for T
where T: Display + ?Sized,

fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.