pub unsafe extern "C" fn PhidgetLCD_clear_async(
ch: PhidgetLCDHandle,
fptr: Phidget_AsyncCallback,
ctx: *mut c_void,
)pub unsafe extern "C" fn PhidgetLCD_clear_async(
ch: PhidgetLCDHandle,
fptr: Phidget_AsyncCallback,
ctx: *mut c_void,
)