public void updateState(bool newState)
{
int res = -1;
if (deviceHandle > 0)
{
TimeSpan ts = DateTime.Now - previousTime;
previousTime = DateTime.Now;
if (ts.Seconds >= minTime)
{
if (newState)
{
deviceHandle = USBRelayDriver.usb_relay_device_open_with_serial_number(serial, serial.Length);
res = USBRelayDriver.usb_relay_device_open_all_relay_channel(deviceHandle);
}
else
{
res = USBRelayDriver.usb_relay_device_close_all_relay_channel(deviceHandle);
USBRelayDriver.usb_relay_device_close(deviceHandle);
}
}
}
if (res != 0 || deviceHandle < 0)
{
//revert back to the original state if the device was not able to respond
ignoreCheckEvent = true;
chkOpen.Checked = !newState;
ignoreCheckEvent = false;
}
}
/**
* Returns 0 if it is okay to close the application. 1 otherwise
*/
public int closeUSBRelayControl()
{
if (deviceHandle > 0)
{
int res = USBRelayDriver.usb_relay_device_close_all_relay_channel(deviceHandle);
USBRelayDriver.usb_relay_device_close(deviceHandle);
}
deviceHandle = -1;
return(0);
}