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KeyOS API Reference

CaptureScreen

gui_server_api::msg

Struct CaptureScreen 

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pub struct CaptureScreen(pub MemoryRange);
Expand description

Captures the current composited screen contents as raw pixel data.

On hardware the byte order is BGRA8888; on the simulator it is RGBA8888. Caller allocates a MemoryRange of SCREEN_WIDTH * SCREEN_HEIGHT * 4 bytes, lends it mutable to gui-server, which fills it with the composited pixel data.

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§0: MemoryRange

Trait Implementations§

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impl Debug for CaptureScreen

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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 From<CaptureScreen> for SimpleMemoryMessage

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fn from(val: CaptureScreen) -> Self

Converts to this type from the input type.
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impl From<SimpleMemoryMessage> for CaptureScreen

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fn from(value: SimpleMemoryMessage) -> Self

Converts to this type from the input type.
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impl LendMut for CaptureScreen

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type Response = ()

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impl MessageId for CaptureScreen

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const ID: MessageId = 54usize

unique message identifier
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const SERVER: &'static str = "os/gui-server"

target server name

Auto Trait Implementations§

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impl Freeze for CaptureScreen

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impl RefUnwindSafe for CaptureScreen

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impl Send for CaptureScreen

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impl Sync for CaptureScreen

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impl Unpin for CaptureScreen

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impl UnsafeUnpin for CaptureScreen

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impl UnwindSafe for CaptureScreen

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> ArchivePointee for T

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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
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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> LayoutRaw for T

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fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>

Returns the layout of the type.
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impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
where T: SharedNiching<N1, N2>, N1: Niching<T>, N2: Niching<T>,

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unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool

Returns whether the given value has been niched. Read more
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fn resolve_niched(out: Place<NichedOption<T, N1>>)

Writes data to out indicating that a T is niched.
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impl<T> Pointee for T

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type Metadata = ()

The metadata type for pointers and references to this type.
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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.