fidl_fuchsia_ui_composition

Enum ScreenshotRequest

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pub enum ScreenshotRequest {
    Take {
        payload: ScreenshotTakeRequest,
        responder: ScreenshotTakeResponder,
    },
    TakeFile {
        payload: ScreenshotTakeFileRequest,
        responder: ScreenshotTakeFileResponder,
    },
}
Expand description

Collects the current graphical content of a display.

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Take

Collects the current graphical content of a display in a specified buffer format in the sRGB color space. Note that the sRGB color space is non-linear, meaning that unit tests doing pixel equality checks making use of non-fully saturated colors should convert to a linear color space.

See https://fuchsia.dev/fuchsia-src/concepts/ui/scenic/color_spaces for more information.

Screenshot is taken immediately, populated with the display’s content from the most recent VSYNC.

If the client calls [Take] a second time before a first [Take] call returns, the server will close the Screenshot connection with a ZX_ERR_SHOULD_WAIT epitaph.

If capture fails due to an internal error, the server will close the Screenshot connection with a ZX_ERR_INTERNAL epitaph.

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TakeFile

Collects the current graphical content of a display in a specified buffer format in the sRGB color space. Note that the sRGB color space is non-linear, meaning that unit tests doing pixel equality checks making use of non-fully saturated colors should convert to a linear color space.

TODO(https://fxbug.dev/42065844): Link to fuchsia.dev documentation when it’s up.

Screenshot is taken immediately, populated with the display’s content from the most recent VSYNC.

If the client calls [TakeFile] a second time before a first [TakeFile] call returns, the server will close the Screenshot connection with a ZX_ERR_SHOULD_WAIT epitaph.

If capture fails due to an internal error, the server will close the Screenshot connection with a ZX_ERR_INTERNAL epitaph.

This call should be used if the client is on the host and does not support VMOs, as is the case for ffx tools.

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impl Debug for ScreenshotRequest

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

Formats the value using the given formatter. Read more

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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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impl<T, D> Encode<Ambiguous2, D> for T
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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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const ALIGN: usize = _

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type Init = T

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