# GetComLineStatus

unsigned int GetComLineStatus (int COMPort);

## Purpose

Returns the modem control-register values.

Linux This function is not supported.

## Parameters

Input
Name | Type | Description
COMPort | integer | A number that indicates the COM port on which to operate. This number is paired with deviceName, which represents the COM port, during the OpenComConfig function call. Default Value: 1—COM1 Valid Range: 1—1,000

## Return Value

Name | Type | Description
lineStatus | unsigned integer | Hardware-specific information about the status of the selected port. The status word is comprised of individual bits, each with a different meaning. This parameter is filled in with a combination of the following values:
Name | Value | Description
kRS_CTS_ON | 0x10 | The CTS (clear-to-send) signal is on.
kRS_DSR_ON | 0x20 | The DSR (data-set-ready) signal is on.
kRS_RING_ON | 0x40 | The ring indicator signal is on.
kRS_RLSD_ON | 0x80 | The RLSD (receive-line-signal-detect) signal is on.