windows::Win32::System::Variant

Struct VARIANT

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

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§Anonymous: VARIANT_0

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impl VARIANT

pub fn vt(&self) -> VARENUM

pub fn is_empty(&self) -> bool

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impl Clone for VARIANT

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for VARIANT

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

Formats the value using the given formatter. Read more
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impl Default for VARIANT

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fn default() -> Self

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

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

Formats the value using the given formatter. Read more
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impl Drop for VARIANT

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl From<&str> for VARIANT

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fn from(value: &str) -> Self

Converts to this type from the input type.
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impl From<BSTR> for VARIANT

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fn from(value: BSTR) -> Self

Converts to this type from the input type.
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impl From<IDispatch> for VARIANT

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fn from(value: IDispatch) -> Self

Converts to this type from the input type.
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impl From<IUnknown> for VARIANT

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fn from(value: IUnknown) -> Self

Converts to this type from the input type.
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impl From<bool> for VARIANT

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fn from(value: bool) -> Self

Converts to this type from the input type.
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impl From<f32> for VARIANT

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fn from(value: f32) -> Self

Converts to this type from the input type.
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impl From<f64> for VARIANT

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fn from(value: f64) -> Self

Converts to this type from the input type.
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impl From<i16> for VARIANT

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fn from(value: i16) -> Self

Converts to this type from the input type.
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impl From<i32> for VARIANT

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fn from(value: i32) -> Self

Converts to this type from the input type.
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impl From<i64> for VARIANT

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fn from(value: i64) -> Self

Converts to this type from the input type.
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impl From<i8> for VARIANT

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fn from(value: i8) -> Self

Converts to this type from the input type.
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impl From<u16> for VARIANT

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fn from(value: u16) -> Self

Converts to this type from the input type.
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impl From<u32> for VARIANT

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fn from(value: u32) -> Self

Converts to this type from the input type.
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impl From<u64> for VARIANT

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fn from(value: u64) -> Self

Converts to this type from the input type.
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impl From<u8> for VARIANT

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fn from(value: u8) -> Self

Converts to this type from the input type.
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impl PartialEq for VARIANT

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl TryFrom<&PROPVARIANT> for VARIANT

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &PROPVARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for BSTR

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for IDispatch

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for IUnknown

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for PROPVARIANT

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for bool

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for f64

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for i16

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for i32

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for i64

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for u16

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for u32

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl TryFrom<&VARIANT> for u64

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type Error = Error

The type returned in the event of a conversion error.
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fn try_from(from: &VARIANT) -> Result<Self>

Performs the conversion.
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impl Eq for VARIANT

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Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.