PhidgetGPS_setOnHeadingChangeHandler

phidget_sys

Function PhidgetGPS_setOnHeadingChangeHandler 

Source 
pub unsafe extern "C" fn PhidgetGPS_setOnHeadingChangeHandler(
    ch: PhidgetGPSHandle,
    fptr: PhidgetGPS_OnHeadingChangeCallback,
    ctx: *mut c_void,
) -> PhidgetReturnCode