Struct libfprint_rs::FpImage

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pub struct FpImage { /* private fields */ }
Expand description

Struct representing an image of a fingerprint. Not all devices support this feature.

Examples:

use libfprint_rs::FpContext;
use std::fs::File;
use std::io::Write;

let context = FpContext::new();
let devices = context.get_devices();
let device = devices.iter().next().unwrap();

device.open().unwrap();
let image = device.capture_image().unwrap();
let data = image.get_data();

let mut file = File::create("image.pgm").unwrap();
let header = format!("P5\n{} {}\n255\n", image.get_width(), image.get_height());
file.write_all(header.as_bytes()).unwrap();
file.write_all(data.as_slice()).unwrap();

Implementations§

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impl FpImage

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pub fn get_data(&self) -> FpImageData<'_>

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pub fn get_width(&self) -> u32

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pub fn get_height(&self) -> u32

Trait Implementations§

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impl Drop for FpImage

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.