Struct oaidl::VariantBool

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pub struct VariantBool(/* private fields */);
Expand description

Helper type for the OLE/COM+ type VARIANT_BOOL

A VARIANT_Bool represents true as 0x0, and false as 0xFFFF.

This means there’s a bit of conversion logic required.

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impl AsRef<bool> for VariantBool

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fn as_ref(&self) -> &bool

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for VariantBool

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fn clone(&self) -> VariantBool

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 VariantBool

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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<'v> From<&'v VariantBool> for bool

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fn from(b: &'v VariantBool) -> Self

Converts to this type from the input type.
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impl<'v> From<&'v VariantBool> for VARIANT_BOOL

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fn from(vb: &'v VariantBool) -> VARIANT_BOOL

Converts a VariantBool into a VARIANT_BOOL.

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impl<'b> From<&'b bool> for VariantBool

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fn from(b: &'b bool) -> Self

Converts to this type from the input type.
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impl<'v> From<&'v i16> for VariantBool

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fn from(vb: &'v VARIANT_BOOL) -> VariantBool

Converts a VARIANT_BOOL into a VariantBool.

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impl<'v> From<&'v mut VariantBool> for bool

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fn from(b: &'v mut VariantBool) -> Self

Converts to this type from the input type.
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impl<'v> From<&'v mut VariantBool> for VARIANT_BOOL

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fn from(vb: &'v mut VariantBool) -> VARIANT_BOOL

Converts a VariantBool into a VARIANT_BOOL.

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impl<'b> From<&'b mut bool> for VariantBool

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fn from(b: &'b mut bool) -> Self

Converts to this type from the input type.
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impl<'v> From<&'v mut i16> for VariantBool

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fn from(vb: &'v mut VARIANT_BOOL) -> VariantBool

Converts a VARIANT_BOOL into a VariantBool.

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impl From<VariantBool> for bool

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fn from(b: VariantBool) -> Self

Converts to this type from the input type.
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impl From<VariantBool> for VARIANT_BOOL

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fn from(vb: VariantBool) -> VARIANT_BOOL

Converts a VariantBool into a VARIANT_BOOL.

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impl From<bool> for VariantBool

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fn from(b: bool) -> Self

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

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fn from(vb: VARIANT_BOOL) -> VariantBool

Converts a VARIANT_BOOL into a VariantBool.

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impl Hash for VariantBool

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for VariantBool

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

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl PartialEq<VariantBool> for VariantBool

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

This method tests for self and other values to be equal, and is used by ==.
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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.
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impl PartialOrd<VariantBool> for VariantBool

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<'c> TryConvert<&'c VariantBool, IntoVariantError> for bool

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fn try_convert(val: &'c VariantBool) -> Result<Self, IntoVariantError>

Does not return any errors.

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impl<'c> TryConvert<&'c VariantBool, IntoVariantError> for VARIANT_BOOL

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fn try_convert(val: &'c VariantBool) -> Result<Self, IntoVariantError>

Does not return any errors.

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impl<'c> TryConvert<&'c bool, FromVariantError> for VariantBool

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fn try_convert(val: &'c bool) -> Result<Self, FromVariantError>

Does not return any errors.

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impl<'c> TryConvert<&'c i16, FromVariantError> for VariantBool

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fn try_convert(val: &'c VARIANT_BOOL) -> Result<Self, FromVariantError>

Does not return any errors.

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impl<'c> TryConvert<&'c mut VariantBool, IntoVariantError> for bool

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fn try_convert(val: &'c mut VariantBool) -> Result<Self, IntoVariantError>

Does not return any errors.

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impl<'c> TryConvert<&'c mut VariantBool, IntoVariantError> for VARIANT_BOOL

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fn try_convert(val: &'c mut VariantBool) -> Result<Self, IntoVariantError>

Does not return any errors.

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impl<'c> TryConvert<&'c mut bool, FromVariantError> for VariantBool

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fn try_convert(val: &'c mut bool) -> Result<Self, FromVariantError>

Does not return any errors.

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impl<'c> TryConvert<&'c mut i16, FromVariantError> for VariantBool

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fn try_convert(val: &'c mut VARIANT_BOOL) -> Result<Self, FromVariantError>

Does not return any errors.

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impl TryConvert<*mut i16, ConversionError> for Box<VariantBool>

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fn try_convert(p: *mut VARIANT_BOOL) -> Result<Self, ConversionError>

Utility method which can fail.
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impl TryConvert<*mut i16, FromVariantError> for Box<VariantBool>

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fn try_convert(inner: *mut VARIANT_BOOL) -> Result<Self, FromVariantError>

Utility method which can fail.
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impl TryConvert<VariantBool, ElementError> for bool

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fn try_convert(val: VariantBool) -> Result<Self, ElementError>

Does not return any errors.

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impl TryConvert<VariantBool, ElementError> for VARIANT_BOOL

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fn try_convert(val: VariantBool) -> Result<Self, ElementError>

Does not return any errors.

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impl TryConvert<VariantBool, IntoVariantError> for bool

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fn try_convert(val: VariantBool) -> Result<Self, IntoVariantError>

Does not return any errors.

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impl TryConvert<VariantBool, IntoVariantError> for VARIANT_BOOL

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fn try_convert(val: VariantBool) -> Result<Self, IntoVariantError>

Does not return any errors.

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impl TryConvert<VariantBool, SafeArrayError> for bool

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fn try_convert(val: VariantBool) -> Result<Self, SafeArrayError>

Does not return any errors.

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impl TryConvert<VariantBool, SafeArrayError> for VARIANT_BOOL

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fn try_convert(val: VariantBool) -> Result<Self, SafeArrayError>

Does not return any errors.

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impl TryConvert<bool, ElementError> for VariantBool

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fn try_convert(val: bool) -> Result<Self, ElementError>

Does not return any errors.

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impl TryConvert<bool, FromVariantError> for VariantBool

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fn try_convert(val: bool) -> Result<Self, FromVariantError>

Does not return any errors.

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impl TryConvert<bool, SafeArrayError> for VariantBool

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fn try_convert(val: bool) -> Result<Self, SafeArrayError>

Does not return any errors.

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impl TryConvert<i16, ElementError> for VariantBool

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fn try_convert(val: VARIANT_BOOL) -> Result<Self, ElementError>

Does not return any errors.

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impl TryConvert<i16, FromVariantError> for VariantBool

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fn try_convert(val: VARIANT_BOOL) -> Result<Self, FromVariantError>

Does not return any errors.

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impl TryConvert<i16, SafeArrayError> for VariantBool

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fn try_convert(val: VARIANT_BOOL) -> Result<Self, SafeArrayError>

Does not return any errors.

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impl Copy for VariantBool

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impl Eq for VariantBool

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impl SafeArrayElement for VariantBool

SafeArrayElement impl for [‘VariantBool’]. This allows it to be converted into SAFEARRAY with vt = VT_BOOL.

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impl StructuralEq for VariantBool

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impl StructuralPartialEq for VariantBool

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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> 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 Twhere 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 Twhere 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, F> TryConvert<T, F> for Twhere T: From<T>, F: Fail,

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fn try_convert(val: T) -> Result<T, F>

Blanket TryConvert implementation wherever a From is implemented for T. (Which is all types.) This avoids repetitive code. The compiler monomorphizes the code for F. And because its always an Ok, should optimize this code away.

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impl<T, U> TryFrom<U> for Twhere 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 Twhere 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.
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impl<OutTy, InTy> VariantExt<InTy> for OutTywhere OutTy: TryConvert<InTy, FromVariantError> + VariantAccess<Field = InTy>, InTy: TryConvert<OutTy, IntoVariantError>,

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const VARTYPE: u32 = const VARTYPE: u32 = OutTy::VTYPE;

VARTYPE constant value for the type
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fn from_variant(pvar: Ptr<VARIANT>) -> Result<OutTy, FromVariantError>

Call this associated function on a Ptr<VARIANT> to obtain a value T
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fn into_variant(value: OutTy) -> Result<Ptr<VARIANT>, IntoVariantError>

Convert a value of type T into a Ptr<VARIANT>