CTSHolding Retrieves the state of the CTS line. Read Only at runtime. MSComm32 and SComm64 have the same syntax and functionality   Syntax:- value = SComm64.CTSHolding   value:- A Boolean Expression indicating the current state of the CTS line.   Example:- If SComm1.CTSHolding = True Then    MessageBox.Show("CTS is On") Else    MessageBox.Show("CTS is Off") End If