pub type PhidgetGPS_OnPositionFixStateChangeCallback = Option<unsafe extern "C" fn(ch: PhidgetGPSHandle, ctx: *mut c_void, positionFixState: c_int)>;Aliased Type§
pub enum PhidgetGPS_OnPositionFixStateChangeCallback {
None,
Some(unsafe extern "C" fn(*mut _PhidgetGPS, *mut c_void, i32)),
}