Enum CaptureError 

#[non_exhaustive]
pub enum CaptureError {
    NoMode,
    NothingReadable,
    EmptyImage,
    Io(Error),
}

What can go wrong capturing or writing a frame.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

NoMode

The CRTC is not driving a mode, so there is no size to capture at.

NothingReadable

No plane on the CRTC could be read.

Either the CRTC really is blank, or every plane on it was skipped – see snapshot() for what gets skipped, and note that a client which has not enabled the atomic cap cannot see plane geometry at all.

EmptyImage

The image has no pixels.

Io(Error)

The kernel or the filesystem refused.

Trait Implementations

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, __formatter: &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.