LV2UI_Show_Interface

Struct LV2UI_Show_Interface 

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#[repr(C)]
pub struct LV2UI_Show_Interface { pub show: Option<unsafe extern "C" fn(ui: LV2UI_Handle) -> c_int>, pub hide: Option<unsafe extern "C" fn(ui: LV2UI_Handle) -> c_int>, }
Expand description

UI Show Interface (LV2_UI__showInterface)

UIs can provide this interface to show and hide a window, which allows them to function in hosts unable to embed their widget. This allows any UI to provide a fallback for embedding that works in any host.

If used:

  • The host MUST use LV2UI_Idle_Interface to drive the UI.
  • The UI MUST return non-zero from LV2UI_Idle_Interface::idle() when it has been closed.
  • If idle() returns non-zero, the host MUST call hide() and stop calling idle(). It MAY later call show() then resume calling idle().

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§show: Option<unsafe extern "C" fn(ui: LV2UI_Handle) -> c_int>

Show a window for this UI.

The window title MAY have been passed by the host to LV2UI_Descriptor::instantiate() as an LV2_Options_Option with key LV2_UI__windowTitle.

@return 0 on success, or anything else to stop being called.

§hide: Option<unsafe extern "C" fn(ui: LV2UI_Handle) -> c_int>

Hide the window for this UI.

@return 0 on success, or anything else to stop being called.

Trait Implementations§

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impl Clone for LV2UI_Show_Interface

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fn clone(&self) -> LV2UI_Show_Interface

Returns a duplicate 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 LV2UI_Show_Interface

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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 Copy for LV2UI_Show_Interface

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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, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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, 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.