private void tsmiSendAutoCmds_Click(object sender, EventArgs e)
{
if (dataUpdating)
return;
formDataAccess.WaitOne();
tsmiSendAutoCmds.Checked = !tsmiSendAutoCmds.Checked;
devForm.attrData.sendAutoCmds = tsmiSendAutoCmds.Checked;
formDataAccess.ReleaseMutex();
}