Enum PrinterUpdate 

pub enum PrinterUpdate {
    Added,
    Removed,
    StateChanged,
}

The change reported by a printer callback.

Variants

Added

A new printer was discovered.

Removed

A previously known printer was removed.

StateChanged

An existing printer’s state field changed.

Trait Implementations

impl Clone for PrinterUpdate

fn clone(&self) -> PrinterUpdate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PrinterUpdate

impl Debug for PrinterUpdate

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

Formats the value using the given formatter.

impl Eq for PrinterUpdate

impl PartialEq for PrinterUpdate

fn eq(&self, other: &PrinterUpdate) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for PrinterUpdate