Struct Params 

#[repr(C)]
pub struct Params {
    pub template: *const u8,
    pub handler_func: extern "C" fn(data: *const u8, result: isize, template: *mut u8),
    pub handler_data: *const u8,
}

Parameters of identify

Fields

template: *const u8

Specific template to identify against (may be null for all enrolled fingers).

handler_func: extern "C" fn(data: *const u8, result: isize, template: *mut u8)

Callback when the identification process finishes.

The handler is called at most once. The result of the identification is encoded as follows:

• result is 1 for a successful identification. The template pointer is allocated by the scheduler and contains the template ID.

• result is 0 for a mismatch identification. The pointer is null.

• result is negative for errors. The pointer is null.

The handler is unregistered before being called, such that the handler may trigger a following identification.

handler_data: *const u8

Trait Implementations

impl Clone for Params

fn clone(&self) -> Params

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Params

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

Formats the value using the given formatter.

impl Copy for Params