Type Alias core_graphics::data_provider::CGDataProviderReleaseDataCallback

pub type CGDataProviderReleaseDataCallback = Option<unsafe extern "C" fn(_: *mut c_void, _: *const c_void, _: size_t)>;

Aliased Type

enum CGDataProviderReleaseDataCallback {
    None,
    Some(unsafe extern "C" fn(_: *mut c_void, _: *const c_void, _: usize)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut c_void, _: *const c_void, _: usize))

Some value of type T.