Enum CaptureError 

pub enum CaptureError {
    AccessDenied,
    NotFound,
    Timeout,
    Setup(String),
    Unsupported,
}

Why a capture attempt failed.

Variants

AccessDenied

Camera permission is denied/restricted, or this process can’t request it (e.g. an unbundled macOS binary with no NSCameraUsageDescription).

NotFound

No camera matched the requested unique id.

Timeout

The session ran but produced no frame within the timeout.

Setup(String)

A platform capture object failed to construct.

Unsupported

Capture has no backend on this platform.

Trait Implementations

impl Clone for CaptureError

fn clone(&self) -> CaptureError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CaptureError

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

Formats the value using the given formatter.

impl Display for CaptureError

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

Formats the value using the given formatter.

impl Error for CaptureError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.