Struct ImageProperties 

pub struct ImageProperties {
    pub orientation: Option<u16>,
    pub dpi: Option<f64>,
    pub created: Option<String>,
    pub extra: Vec<(String, String)>,
}

The metadata an image file carries beyond its pixels (Toolkit::image_properties).

Sparse by construction: every field is what the platform’s own reader answered, and a backend with no metadata reader at all answers None to the whole call rather than an empty struct. Probe Cap::ImageProperties before offering an affordance that depends on it.

Fields

orientation: Option<u16>

The EXIF orientation tag (1–8), where one was recorded.

dpi: Option<f64>

Pixels per inch, where the file records a resolution.

created: Option<String>

The capture timestamp as the file spells it (no parsing: the formats disagree).

extra: Vec<(String, String)>

Everything else the platform reader named, in its own vocabulary. Keys are the platform’s, so read them defensively.

Trait Implementations

impl Clone for ImageProperties

fn clone(&self) -> ImageProperties

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ImageProperties

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

Formats the value using the given formatter.

impl Default for ImageProperties

fn default() -> ImageProperties

Returns the “default value” for a type.

impl PartialEq for ImageProperties

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ImageProperties