GBS Elektronik MCA-166 Communication DLL - Manual (Page 31)

Description of the MCA Communication DLL
5 Managing the USB port
There are special functions for the USB port. The function COMM_INIT_ETHERNET returns information about the communication
port to the argument init.unInterfaceId. This parameter shows whether the communication port is an USB port and
whether the MCA batteries are rechargeable over the USB interface.
Name GET_USB_CHARGER
Description The function gets information as to whether USB charging is switched on or off.
Declaration VB_BOOL CALLBACK GET_USB_CHARGER();
Return value If nonzero, the USB charging is switched on.
Name SET_USB_CHARGER
Description The function switches USB charging on or off.
Declaration void CALLBACK SET_USB_CHARGER(VB_BOOL bCharge);
bCharge If nonzero, the USB charging will be switched on otherwise off.
Name GET_USB_CHARGER_STATE
Description The function gets the USB charging state. The MCA batteries are recharged over USB if USB charging is
switched on and no external charger is plugged.
Declaration VB_BOOL CALLBACK GET_USB_CHARGER();
Return value If nonzero, the MCA batteries are recharged over USB.
Name GET_CURRENT_LATENCY_TIMER
Description The function gets the latency time of the USB port.
Declaration VB_BOOL CALLBACK GET_CURRENT_LATENCY_TIMER(LPDWORD lpdwTime);
lpdwTime Pointer to the returned latency time.
Return value If the function succeeds, the return value is nonzero.
Name SET_CURRENT_LATENCY_TIMER
Description The function sets the latency time of the USB port. Changing the latency time can speed up the
communication.
Declaration VB_BOOL CALLBACK SET_CURRENT_LATENCY_TIMER(DWORD dwTime);
dwTime Latency time
Return value If the function succeeds, the return value is nonzero.
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