pub unsafe extern "C" fn PhidgetMotorPositionController_setOnPositionChangeHandler(
ch: PhidgetMotorPositionControllerHandle,
fptr: PhidgetMotorPositionController_OnPositionChangeCallback,
ctx: *mut c_void,
) -> PhidgetReturnCodepub unsafe extern "C" fn PhidgetMotorPositionController_setOnPositionChangeHandler(
ch: PhidgetMotorPositionControllerHandle,
fptr: PhidgetMotorPositionController_OnPositionChangeCallback,
ctx: *mut c_void,
) -> PhidgetReturnCode