Type Alias VipsCallbackFn

pub type VipsCallbackFn = Option<unsafe extern "C" fn(a: *mut c_void, b: *mut c_void) -> c_int>;

Aliased Type

pub enum VipsCallbackFn {
    None,
    Some(unsafe extern "C" fn(*mut c_void, *mut c_void) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut c_void, *mut c_void) -> i32)

Some value of type T.