private void btOpenClose_Click(object sender, EventArgs e)
{
if (null == _dev)
{
MessageBox.Show("打开设备失败！设备对象为空");
return;
}
if (_dev.IsDeviceOpen)
{
int err = _dev.CloseDevice();
if (err != 0)
{
MessageBox.Show("关闭设备失败，错误信息：" + _dev.GetErrorInfo(err));
return;
}
}
else
{
int err = _dev.OpenDevice();
if (err != 0)
{
MessageBox.Show("打开设备失败，错误信息：" + _dev.GetErrorInfo(err));
return;
}
}
AdjustUI();
}