PhidgetEncoder_setOnPositionChangeHandler

phidget_sys

Function PhidgetEncoder_setOnPositionChangeHandler 

Source 
pub unsafe extern "C" fn PhidgetEncoder_setOnPositionChangeHandler(
    ch: PhidgetEncoderHandle,
    fptr: PhidgetEncoder_OnPositionChangeCallback,
    ctx: *mut c_void,
) -> PhidgetReturnCode