pub type PhidgetGPS_OnPositionChangeCallback = Option<unsafe extern "C" fn(ch: PhidgetGPSHandle, ctx: *mut c_void, latitude: f64, longitude: f64, altitude: f64)>;Aliased Type§
pub enum PhidgetGPS_OnPositionChangeCallback {
None,
Some(unsafe extern "C" fn(*mut _PhidgetGPS, *mut c_void, f64, f64, f64)),
}