Struct winsafe::guard::DeleteObjectGuard

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pub struct DeleteObjectGuard<T>
where T: GdiObject,
{ /* private fields */ }
Available on crate features kernel and gdi only.
Expand description

RAII implementation for a GdiObject which automatically calls DeleteObject when the object goes out of scope.

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impl<T> DeleteObjectGuard<T>
where T: GdiObject,

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pub const unsafe fn new(handle: T) -> Self

Constructs the guard by taking ownership of the handle.

§Safety

Be sure the handle must be freed with DeleteObject at the end of scope.

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pub fn leak(&mut self) -> T

Ejects the underlying handle, leaving a Handle::INVALID in its place.

Since the internal handle will be invalidated, the destructor will not run. It’s your responsability to run it, otherwise you’ll cause a resource leak.

Trait Implementations§

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impl<T> Deref for DeleteObjectGuard<T>
where T: GdiObject,

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<T> DerefMut for DeleteObjectGuard<T>
where T: GdiObject,

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.
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impl<T> Drop for DeleteObjectGuard<T>
where T: GdiObject,

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<T> Freeze for DeleteObjectGuard<T>
where T: Freeze,

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impl<T> RefUnwindSafe for DeleteObjectGuard<T>
where T: RefUnwindSafe,

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impl<T> Send for DeleteObjectGuard<T>

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impl<T> Sync for DeleteObjectGuard<T>
where T: Sync,

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impl<T> Unpin for DeleteObjectGuard<T>
where T: Unpin,

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impl<T> UnwindSafe for DeleteObjectGuard<T>
where T: UnwindSafe,

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> 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, 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.